diff --git a/Android.bp b/Android.bp
index 501b438..7e57a3f 100644
--- a/Android.bp
+++ b/Android.bp
@@ -10,27 +10,18 @@
     out: ["com/android/server/telecom/TelecomStatsLog.java"],
 }
 
-filegroup {
-    name: "Telecom-srcs",
+android_library {
+    name: "TelecomLib",
+    manifest: "AndroidManifestLib.xml",
     srcs: [
         "src/**/*.java",
         ":statslog-telecom-java-gen",
-    ],
-}
-
-// Build the Telecom service.
-android_app {
-    name: "Telecom",
-    srcs: [
-        ":Telecom-srcs",
         "proto/**/*.proto",
     ],
     static_libs: [
         "androidx.annotation_annotation",
         "androidx.core_core",
-    ],
-    libs: [
-        "services",
+        "telecom_flags_core_java_lib",
     ],
     resource_dirs: ["res"],
     proto: {
@@ -39,6 +30,22 @@
         output_params: ["optional_field_style=accessors"],
     },
     platform_apis: true,
+}
+
+
+// Build the Telecom service.
+android_app {
+    name: "Telecom",
+    srcs: [
+    ],
+    static_libs: [
+        "TelecomLib",
+    ],
+    libs: [
+        "services",
+    ],
+    resource_dirs: [],
+    platform_apis: true,
     certificate: "platform",
     privileged: true,
     optimize: {
@@ -49,31 +56,24 @@
 android_test {
     name: "TelecomUnitTests",
     static_libs: [
+        "TelecomLib",
         "android-ex-camera2",
+        "flag-junit",
         "guava",
         "mockito-target-extended",
         "androidx.test.rules",
         "platform-test-annotations",
         "androidx.legacy_legacy-support-core-ui",
         "androidx.legacy_legacy-support-core-utils",
-        "androidx.core_core",
         "androidx.fragment_fragment",
         "androidx.test.ext.junit",
         "platform-compat-test-rules",
     ],
     srcs: [
         "tests/src/**/*.java",
-        ":Telecom-srcs",
-        "proto/**/*.proto",
     ],
-    proto: {
-        type: "nano",
-        local_include_dirs: ["proto/"],
-        output_params: ["optional_field_style=accessors"],
-    },
     resource_dirs: [
         "tests/res",
-        "res",
     ],
     libs: [
         "android.test.mock",
@@ -86,11 +86,6 @@
         "libstaticjvmtiagent",
     ],
 
-    aaptflags: [
-        "--auto-add-overlay",
-        "--extra-packages",
-        "com.android.server.telecom",
-    ],
     manifest: "tests/AndroidManifest.xml",
     optimize: {
         enabled: false,
@@ -98,8 +93,8 @@
     platform_apis: true,
     certificate: "platform",
     jacoco: {
-        include_filter: ["com.android.server.telecom.*"],
-        exclude_filter: ["com.android.server.telecom.tests.*"],
+        include_filter: ["com.android.server.telecom.**"],
+        exclude_filter: ["com.android.server.telecom.tests.**"],
     },
     test_suites: ["device-tests"],
     defaults: ["SettingsLibDefaults"],
diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index ab067d9..90e4bd9 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -28,7 +28,6 @@
     <!-- Prevents the activity manager from delaying any activity-start
          requests by this package, including requests immediately after
          the user presses "home". -->
-    <uses-permission android:name="android.permission.BIND_CONNECTION_SERVICE"/>
     <uses-permission android:name="android.permission.BIND_INCALL_SERVICE"/>
     <uses-permission android:name="android.permission.BLUETOOTH"/>
     <uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/>
@@ -65,7 +64,7 @@
     <uses-permission android:name="android.permission.POST_NOTIFICATIONS"/>
     <uses-permission android:name="android.permission.USE_COLORIZED_NOTIFICATIONS"/>
     <uses-permission android:name="android.permission.USE_FULL_SCREEN_INTENT"/>
-    <uses-permission android:name="com.android.phone.permission.ACCESS_LAST_KNOWN_CELL_ID"/>
+    <uses-permission android:name="android.permission.ACCESS_LAST_KNOWN_CELL_ID"/>
     <uses-permission android:name="android.permission.STATUS_BAR_SERVICE" />
 
     <permission android:name="android.permission.BROADCAST_CALLLOG_INFO"
@@ -319,18 +318,6 @@
              android:exported="false"
              android:process=":ui"/>
 
-        <service android:name=".components.BluetoothPhoneService"
-             android:singleUser="true"
-             android:process="system"
-             android:exported="true">
-            <intent-filter>
-                <action android:name="android.bluetooth.IBluetoothHeadsetPhone"/>
-            </intent-filter>
-            <intent-filter>
-                <action android:name="android.bluetooth.IBluetoothLeCallControlCallback" />
-            </intent-filter>
-        </service>
-
         <service android:name=".components.TelecomService"
              android:singleUser="true"
              android:process="system"
diff --git a/AndroidManifestLib.xml b/AndroidManifestLib.xml
new file mode 100644
index 0000000..9b40f6b
--- /dev/null
+++ b/AndroidManifestLib.xml
@@ -0,0 +1,18 @@
+<?xml version="1.0" encoding="utf-8"?>
+<!-- Copyright (C) 2024 The Android Open Source Project
+
+     Licensed under the Apache License, Version 2.0 (the "License");
+     you may not use this file except in compliance with the License.
+     You may obtain a copy of the License at
+
+          http://www.apache.org/licenses/LICENSE-2.0
+
+     Unless required by applicable law or agreed to in writing, software
+     distributed under the License is distributed on an "AS IS" BASIS,
+     WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+     See the License for the specific language governing permissions and
+     limitations under the License.
+-->
+
+<manifest package="com.android.server.telecom">
+</manifest>
diff --git a/OWNERS b/OWNERS
index 97cc81f..7e68aea 100644
--- a/OWNERS
+++ b/OWNERS
@@ -1,7 +1,6 @@
 breadley@google.com
 tgunn@google.com
 xiaotonj@google.com
-chinmayd@google.com
 tjstuart@google.com
 rgreenwalt@google.com
 pmadapurmath@google.com
diff --git a/flags/Android.bp b/flags/Android.bp
new file mode 100644
index 0000000..386831c
--- /dev/null
+++ b/flags/Android.bp
@@ -0,0 +1,43 @@
+//
+// Copyright (C) 2023 The Android Open Source Project
+//
+// Licensed under the Apache License, Version 2.0 (the "License");
+// you may not use this file except in compliance with the License.
+// You may obtain a copy of the License at
+//
+//      http://www.apache.org/licenses/LICENSE-2.0
+//
+// Unless required by applicable law or agreed to in writing, software
+// distributed under the License is distributed on an "AS IS" BASIS,
+// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+// See the License for the specific language governing permissions and
+// limitations under the License.
+//
+
+package {
+    default_applicable_licenses: ["Android-Apache-2.0"],
+}
+
+aconfig_declarations {
+    name: "telecom_flags",
+    package: "com.android.server.telecom.flags",
+    srcs: [
+      "telecom_broadcast_flags.aconfig",
+      "telecom_ringer_flag_declarations.aconfig",
+      "telecom_api_flags.aconfig",
+      "telecom_call_filtering_flags.aconfig",
+      "telecom_incallservice_flags.aconfig",
+      "telecom_default_phone_account_flags.aconfig",
+      "telecom_callaudioroutestatemachine_flags.aconfig",
+      "telecom_call_flags.aconfig",
+      "telecom_calls_manager_flags.aconfig",
+      "telecom_anomaly_report_flags.aconfig",
+      "telecom_callaudiomodestatemachine_flags.aconfig",
+      "telecom_calllog_flags.aconfig",
+      "telecom_resolve_hidden_dependencies.aconfig",
+      "telecom_bluetoothroutemanager_flags.aconfig",
+      "telecom_work_profile_flags.aconfig",
+      "telecom_connection_service_wrapper_flags.aconfig",
+    ],
+}
+
diff --git a/flags/telecom_anomaly_report_flags.aconfig b/flags/telecom_anomaly_report_flags.aconfig
new file mode 100644
index 0000000..dbacc08
--- /dev/null
+++ b/flags/telecom_anomaly_report_flags.aconfig
@@ -0,0 +1,8 @@
+package: "com.android.server.telecom.flags"
+
+flag {
+  name: "gen_anom_report_on_focus_timeout"
+  namespace: "telecom"
+  description: "When getCurrentFocusCall times out, generate an anom. report"
+  bug: "309541253"
+}
diff --git a/flags/telecom_api_flags.aconfig b/flags/telecom_api_flags.aconfig
new file mode 100644
index 0000000..21b83b2
--- /dev/null
+++ b/flags/telecom_api_flags.aconfig
@@ -0,0 +1,30 @@
+package: "com.android.server.telecom.flags"
+
+flag {
+  name: "voip_app_actions_support"
+  namespace: "telecom"
+  description: "When set, Telecom support for additional VOIP application actions is active."
+  bug: "296934278"
+}
+
+flag {
+  name: "call_details_id_changes"
+  namespace: "telecom"
+  description: "When set, call details/extras id updates to Telecom APIs for Android V are active."
+  bug: "301713560"
+}
+
+flag{
+  name: "add_call_uri_for_missed_calls"
+  namespace: "telecom"
+  description: "The key is used for dialer apps to mark missed calls as read when it gets the notification on reboot."
+  bug: "292597423"
+}
+
+
+flag{
+  name: "set_mute_state"
+  namespace: "telecom"
+  description: "transactional calls need the ability to mute the call audio input"
+  bug: "310669304"
+}
diff --git a/flags/telecom_bluetoothroutemanager_flags.aconfig b/flags/telecom_bluetoothroutemanager_flags.aconfig
new file mode 100644
index 0000000..ddd8571
--- /dev/null
+++ b/flags/telecom_bluetoothroutemanager_flags.aconfig
@@ -0,0 +1,9 @@
+package: "com.android.server.telecom.flags"
+
+flag {
+  name: "use_actual_address_to_enter_connecting_state"
+  namespace: "telecom"
+  description: "Fix bugs that may add bluetooth device with null address."
+  bug: "306113816"
+}
+
diff --git a/flags/telecom_broadcast_flags.aconfig b/flags/telecom_broadcast_flags.aconfig
new file mode 100644
index 0000000..348d574
--- /dev/null
+++ b/flags/telecom_broadcast_flags.aconfig
@@ -0,0 +1,8 @@
+package: "com.android.server.telecom.flags"
+
+flag {
+  name: "is_new_outgoing_call_broadcast_unblocking"
+  namespace: "telecom"
+  description: "When set, the ACTION_NEW_OUTGOING_CALL broadcast is unblocking."
+  bug: "224550864"
+}
\ No newline at end of file
diff --git a/flags/telecom_call_filtering_flags.aconfig b/flags/telecom_call_filtering_flags.aconfig
new file mode 100644
index 0000000..95e74ce
--- /dev/null
+++ b/flags/telecom_call_filtering_flags.aconfig
@@ -0,0 +1,8 @@
+package: "com.android.server.telecom.flags"
+
+flag {
+  name: "skip_filter_phone_account_perform_dnd_filter"
+  namespace: "telecom"
+  description: "Gates whether to still perform Dnd filter when phone account has skip_filter call extra."
+  bug: "222333869"
+}
\ No newline at end of file
diff --git a/flags/telecom_call_flags.aconfig b/flags/telecom_call_flags.aconfig
new file mode 100644
index 0000000..b5ea6a2
--- /dev/null
+++ b/flags/telecom_call_flags.aconfig
@@ -0,0 +1,8 @@
+package: "com.android.server.telecom.flags"
+
+flag {
+  name: "transactional_cs_verifier"
+  namespace: "telecom"
+  description: "verify connection service callbacks via a transaction"
+  bug: "309541257"
+}
\ No newline at end of file
diff --git a/flags/telecom_callaudiomodestatemachine_flags.aconfig b/flags/telecom_callaudiomodestatemachine_flags.aconfig
new file mode 100644
index 0000000..b263113
--- /dev/null
+++ b/flags/telecom_callaudiomodestatemachine_flags.aconfig
@@ -0,0 +1,8 @@
+package: "com.android.server.telecom.flags"
+
+flag {
+  name: "set_audio_mode_before_abandon_focus"
+  namespace: "telecom"
+  description: "Set audio mode to MODE_NORMAL before abandon the audio focus."
+  bug: "281841785"
+}
diff --git a/flags/telecom_callaudioroutestatemachine_flags.aconfig b/flags/telecom_callaudioroutestatemachine_flags.aconfig
new file mode 100644
index 0000000..fe21c92
--- /dev/null
+++ b/flags/telecom_callaudioroutestatemachine_flags.aconfig
@@ -0,0 +1,71 @@
+package: "com.android.server.telecom.flags"
+
+flag {
+  name: "available_routes_never_updated_after_set_system_audio_state"
+  namespace: "telecom"
+  description: "Fix supported routes wrongly include bluetooth issue."
+  bug: "292599751"
+}
+
+flag {
+  name: "use_refactored_audio_route_switching"
+  namespace: "telecom"
+  description: "Refactored audio routing"
+  bug: "306395598"
+}
+
+flag {
+  name: "ensure_audio_mode_updates_on_foreground_call_change"
+  namespace: "telecom"
+  description: "Ensure that the audio mode is updated anytime the foreground call changes."
+  bug: "289861657"
+}
+
+flag {
+  name: "ignore_auto_route_to_watch_device"
+  namespace: "telecom"
+  description: "Ignore auto routing to wearable devices."
+  bug: "294378768"
+}
+
+flag {
+  name: "transit_route_before_audio_disconnect_bt"
+  namespace: "telecom"
+  description: "Fix audio route transition issue on call disconnection when bt audio connected."
+  bug: "306113816"
+}
+
+flag {
+  name: "call_audio_communication_device_refactor"
+  namespace: "telecom"
+  description: "Refactor call audio set/clear communication device and include unsupported routes."
+  bug: "308968392"
+}
+
+flag {
+  name: "communication_device_protected_by_lock"
+  namespace: "telecom"
+  description: "Protect set/clear communication device operation with lock to avoid race condition."
+  bug: "303001133"
+}
+
+flag {
+  name: "reset_mute_when_entering_quiescent_bt_route"
+  namespace: "telecom"
+  description: "Reset mute state when entering quiescent bluetooth route."
+  bug: "311313250"
+}
+
+flag {
+  name: "update_route_mask_when_bt_connected"
+  namespace: "telecom"
+  description: "Update supported route mask when Bluetooth devices audio connected."
+  bug: "301695370"
+}
+
+flag {
+  name: "clear_communication_device_after_audio_ops_complete"
+  namespace: "telecom"
+  description: "Clear the requested communication device after the audio operations are completed."
+  bug: "315865533"
+}
diff --git a/flags/telecom_calllog_flags.aconfig b/flags/telecom_calllog_flags.aconfig
new file mode 100644
index 0000000..3ce7b63
--- /dev/null
+++ b/flags/telecom_calllog_flags.aconfig
@@ -0,0 +1,15 @@
+package: "com.android.server.telecom.flags"
+
+flag {
+  name: "telecom_log_external_wearable_calls"
+  namespace: "telecom"
+  description: "log external call if current device is a wearable one"
+  bug: "292600751"
+}
+
+flag {
+  name: "telecom_skip_log_based_on_extra"
+  namespace: "telecom"
+  description: "skipping logging a call based on passed extra"
+  bug: "295530944"
+}
diff --git a/flags/telecom_calls_manager_flags.aconfig b/flags/telecom_calls_manager_flags.aconfig
new file mode 100644
index 0000000..1a19480
--- /dev/null
+++ b/flags/telecom_calls_manager_flags.aconfig
@@ -0,0 +1,15 @@
+package: "com.android.server.telecom.flags"
+
+flag {
+  name: "use_improved_listener_order"
+  namespace: "telecom"
+  description: "Make InCallController the first listener to trigger"
+  bug: "24244713"
+}
+
+flag {
+  name: "fix_audio_flicker_for_outgoing_calls"
+  namespace: "telecom"
+  description: "This fix ensures the MO calls won't switch from Active to Quite b/c setDialing was not called"
+  bug: "309540769"
+}
diff --git a/flags/telecom_connection_service_wrapper_flags.aconfig b/flags/telecom_connection_service_wrapper_flags.aconfig
new file mode 100644
index 0000000..5f46c27
--- /dev/null
+++ b/flags/telecom_connection_service_wrapper_flags.aconfig
@@ -0,0 +1,8 @@
+package: "com.android.server.telecom.flags"
+
+flag {
+  name: "updated_rcs_call_count_tracking"
+  namespace: "telecom"
+  description: "Ensure that the associatedCallCount of CS and RCS is accurately being tracked."
+  bug: "286154316"
+}
\ No newline at end of file
diff --git a/flags/telecom_default_phone_account_flags.aconfig b/flags/telecom_default_phone_account_flags.aconfig
new file mode 100644
index 0000000..03f324c
--- /dev/null
+++ b/flags/telecom_default_phone_account_flags.aconfig
@@ -0,0 +1,15 @@
+package: "com.android.server.telecom.flags"
+
+flag {
+  name: "only_update_telephony_on_valid_sub_ids"
+  namespace: "telecom"
+  description: "For testing purposes, only update Telephony when the default calling subId is non-zero"
+  bug: "234846282"
+}
+
+flag {
+  name: "telephony_has_default_but_telecom_does_not"
+  namespace: "telecom"
+  description: "Telecom is requesting the user to select a sim account to place the outgoing call on but the user has a default account in the settings"
+  bug: "302397094"
+}
\ No newline at end of file
diff --git a/flags/telecom_incallservice_flags.aconfig b/flags/telecom_incallservice_flags.aconfig
new file mode 100644
index 0000000..e1a652b
--- /dev/null
+++ b/flags/telecom_incallservice_flags.aconfig
@@ -0,0 +1,15 @@
+package: "com.android.server.telecom.flags"
+
+flag {
+  name: "early_binding_to_incall_service"
+  namespace: "telecom"
+  description: "Binds to InCallServices when call requires no call filtering on watch"
+  bug: "282113261"
+}
+
+flag {
+  name: "ecc_keyguard"
+  namespace: "telecom"
+  description: "Ensure that users are able to return to call from keyguard UI for ECC"
+  bug: "306582821"
+}
\ No newline at end of file
diff --git a/flags/telecom_resolve_hidden_dependencies.aconfig b/flags/telecom_resolve_hidden_dependencies.aconfig
new file mode 100644
index 0000000..ecc0123
--- /dev/null
+++ b/flags/telecom_resolve_hidden_dependencies.aconfig
@@ -0,0 +1,8 @@
+package: "com.android.server.telecom.flags"
+
+flag {
+    name: "telecom_resolve_hidden_dependencies"
+    namespace: "android_platform_telecom"
+    description: "Mainland cleanup for hidden dependencies"
+    bug: "b/303440370"
+}
diff --git a/flags/telecom_ringer_flag_declarations.aconfig b/flags/telecom_ringer_flag_declarations.aconfig
new file mode 100644
index 0000000..54748d0
--- /dev/null
+++ b/flags/telecom_ringer_flag_declarations.aconfig
@@ -0,0 +1,8 @@
+package: "com.android.server.telecom.flags"
+
+flag {
+  name: "use_device_provided_serialized_ringer_vibration"
+  namespace: "telecom"
+  description: "Gates whether to use a serialized, device-specific ring vibration."
+  bug: "282113261"
+}
\ No newline at end of file
diff --git a/flags/telecom_work_profile_flags.aconfig b/flags/telecom_work_profile_flags.aconfig
new file mode 100644
index 0000000..180af59
--- /dev/null
+++ b/flags/telecom_work_profile_flags.aconfig
@@ -0,0 +1,8 @@
+package: "com.android.server.telecom.flags"
+
+flag {
+  name: "associated_user_refactor_for_work_profile"
+  namespace: "telecom"
+  description: "Redefines the associated user for calls in the context of work profile support (U+)"
+  bug: "315035693"
+}
\ No newline at end of file
diff --git a/proguard.flags b/proguard.flags
index 635eba6..7c71a15 100644
--- a/proguard.flags
+++ b/proguard.flags
@@ -9,17 +9,3 @@
 -keep class android.telecom.Log {
   *;
 }
-
-# Keep classes, annotations and members used by Lifecycle. Remove this once aapt2 is enabled
--keepattributes *Annotation*
-
--keep class * implements android.arch.lifecycle.LifecycleObserver {
-}
-
--keep class * implements android.arch.lifecycle.GeneratedAdapter {
-    <init>(...);
-}
-
--keepclassmembers class ** {
-    @android.arch.lifecycle.OnLifecycleEvent *;
-}
diff --git a/res/values-my/strings.xml b/res/values-my/strings.xml
index c9e5593..9ead5f4 100644
--- a/res/values-my/strings.xml
+++ b/res/values-my/strings.xml
@@ -19,7 +19,7 @@
     <string name="telecommAppLabel" product="default" msgid="1825598513414129827">"ဖုန်းခေါ်ဆိုမှုများ"</string>
     <string name="userCallActivityLabel" product="default" msgid="3605391260292846248">"ဖုန်း"</string>
     <string name="unknown" msgid="6993977514360123431">"မသိပါ"</string>
-    <string name="notification_missedCallTitle" msgid="5060387047205532974">"လွတ်သွားသော ခေါ်ဆိုမှု"</string>
+    <string name="notification_missedCallTitle" msgid="5060387047205532974">"လွဲသွားသော ဖုန်းခေါ်မှု"</string>
     <string name="notification_missedWorkCallTitle" msgid="6965463282259034953">"လွတ်သွားသည့် အလုပ်ဆိုင်ရာ ခ​ေါ်ဆိုမှု"</string>
     <string name="notification_missedCallsTitle" msgid="3910479625507893809">"လွဲသွားသော ဖုန်းခေါ်မှုများ"</string>
     <string name="notification_missedCallsMsg" msgid="5055782736170916682">"<xliff:g id="NUM_MISSED_CALLS">%s</xliff:g> လွဲသွားသော ဖုန်းခေါ်မှုများ"</string>
diff --git a/res/values-or/strings.xml b/res/values-or/strings.xml
index 6f3ebe3..787711b 100644
--- a/res/values-or/strings.xml
+++ b/res/values-or/strings.xml
@@ -24,7 +24,7 @@
     <string name="notification_missedCallsTitle" msgid="3910479625507893809">"ମିସ୍ଡ କଲ୍"</string>
     <string name="notification_missedCallsMsg" msgid="5055782736170916682">"<xliff:g id="NUM_MISSED_CALLS">%s</xliff:g>ଟି ମିସ୍ଡ କଲ୍"</string>
     <string name="notification_missedCallTicker" msgid="6731461957487087769">"<xliff:g id="MISSED_CALL_FROM">%s</xliff:g>ଙ୍କ ଠାରୁ ମିସ୍-କଲ୍ ମିଳିଛି"</string>
-    <string name="notification_missedCall_call_back" msgid="7900333283939789732">"କଲବେକ କରନ୍ତୁ"</string>
+    <string name="notification_missedCall_call_back" msgid="7900333283939789732">"କଲବ୍ୟାକ୍ କରନ୍ତୁ"</string>
     <string name="notification_missedCall_message" msgid="4054698824390076431">"ମେସେଜ୍‍ ଦିଅନ୍ତୁ"</string>
     <string name="notification_disconnectedCall_title" msgid="1790131923692416928">"କଲ୍ ବିଚ୍ଛିନ୍ନ କରାଯାଇଛି"</string>
     <string name="notification_disconnectedCall_body" msgid="600491714584417536">"ଏକ ଜରୁରୀକାଳୀନ କଲ୍ କରାଯାଇଥିବାରୁ <xliff:g id="CALLER">%s</xliff:g>ଙ୍କୁ କରାଯାଇଥିବା କଲ୍ ବିଚ୍ଛିନ୍ନ କରାଯାଇଛି।"</string>
diff --git a/res/values/config.xml b/res/values/config.xml
index 15f765b..c38a6ec 100644
--- a/res/values/config.xml
+++ b/res/values/config.xml
@@ -49,8 +49,10 @@
     <bool name="grant_location_permission_enabled">false</bool>
 
     <!-- When true, a simple full intensity on/off vibration pattern will be used when calls ring.
-         When false, a fancy vibration pattern which ramps up and down will be used.
-         Devices should overlay this value based on the type of vibration hardware they employ. -->
+
+         When false, the vibration effect serialized in the raw `default_ringtone_vibration_effect`
+         resource (under `frameworks/base/core/res/res/raw/`) is used. Devices should overlay this
+         value based on the type of vibration hardware they employ. -->
     <bool name="use_simple_vibration_pattern">false</bool>
 
     <!-- Threshold for the X+Y component of gravity needed for the device orientation to be
diff --git a/res/values/styles.xml b/res/values/styles.xml
index c8b24d3..cd608f5 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -61,6 +61,7 @@
     </style>
 
     <style name="BlockedNumbersButton" parent="BlockedNumbersTextPrimary2">
+        <item name="android:textColor">#202124</item>
     </style>
 
     <style name="BlockedNumbersTextHead1"
diff --git a/res/xml/activity_blocked_numbers.xml b/res/xml/activity_blocked_numbers.xml
index e77184d..b6298e9 100644
--- a/res/xml/activity_blocked_numbers.xml
+++ b/res/xml/activity_blocked_numbers.xml
@@ -41,8 +41,8 @@
                     android:layout_height="wrap_content"
                     android:text="@string/non_primary_user"
                     android:paddingTop="@dimen/blocked_numbers_large_padding"
-                    android:paddingLeft="@dimen/blocked_numbers_large_padding"
-                    android:paddingRight="@dimen/blocked_numbers_large_padding"
+                    android:paddingStart="@dimen/blocked_numbers_large_padding"
+                    android:paddingEnd="@dimen/blocked_numbers_large_padding"
                     style="@style/BlockedNumbersTextPrimary2"
                     android:visibility="gone" />
 
@@ -62,8 +62,8 @@
                         android:layout_width="match_parent"
                         android:layout_height="wrap_content"
                         android:paddingTop="@dimen/blocked_numbers_large_padding"
-                        android:paddingLeft="@dimen/blocked_numbers_large_padding"
-                        android:paddingRight="@dimen/blocked_numbers_large_padding">
+                        android:paddingStart="@dimen/blocked_numbers_large_padding"
+                        android:paddingEnd="@dimen/blocked_numbers_large_padding">
 
                     <TextView
                             android:layout_width="wrap_content"
diff --git a/res/xml/blocking_suppressed_butterbar.xml b/res/xml/blocking_suppressed_butterbar.xml
index 8b941b9..2947340 100644
--- a/res/xml/blocking_suppressed_butterbar.xml
+++ b/res/xml/blocking_suppressed_butterbar.xml
@@ -25,19 +25,19 @@
             android:id="@+id/icon"
             android:layout_height="wrap_content"
             android:layout_width="wrap_content"
-            android:layout_alignParentLeft="true"
+            android:layout_alignParentStart="true"
             android:paddingTop="@dimen/blocked_numbers_large_padding"
-            android:paddingRight="@dimen/blocked_numbers_large_padding"
-            android:paddingLeft="@dimen/blocked_numbers_large_padding"
+            android:paddingEnd="@dimen/blocked_numbers_large_padding"
+            android:paddingStart="@dimen/blocked_numbers_large_padding"
             android:src="@drawable/ic_status_blocked_orange_40dp"/>
 
     <TextView
             android:id="@+id/title"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_toRightOf="@id/icon"
+            android:layout_toEndOf="@id/icon"
             android:paddingTop="@dimen/blocked_numbers_large_padding"
-            android:paddingRight="@dimen/blocked_numbers_large_padding"
+            android:paddingEnd="@dimen/blocked_numbers_large_padding"
             android:text="@string/blocked_numbers_butter_bar_title"
             style="@style/BlockedNumbersTextPrimary2" />
 
@@ -45,11 +45,11 @@
             android:id="@+id/description"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_toRightOf="@id/icon"
+            android:layout_toEndOf="@id/icon"
             android:layout_below="@id/title"
             android:paddingTop="@dimen/blocked_numbers_large_padding"
             android:paddingBottom="@dimen/blocked_numbers_large_padding"
-            android:paddingRight="@dimen/blocked_numbers_large_padding"
+            android:paddingEnd="@dimen/blocked_numbers_large_padding"
             android:text="@string/blocked_numbers_butter_bar_body"
             style="@style/BlockedNumbersTextSecondary" />
 
@@ -57,9 +57,9 @@
             android:id="@+id/reenable_button"
             android:layout_width="wrap_content"
             android:layout_height="wrap_content"
-            android:layout_toRightOf="@id/icon"
+            android:layout_toEndOf="@id/icon"
             android:layout_below="@id/description"
-            android:paddingRight="@dimen/blocked_numbers_large_padding"
+            android:paddingEnd="@dimen/blocked_numbers_large_padding"
             android:text="@string/blocked_numbers_butter_bar_button"
             style="@style/BlockedNumbersButton"
             android:background="?android:attr/selectableItemBackgroundBorderless" />
diff --git a/src/com/android/server/telecom/AsyncRingtonePlayer.java b/src/com/android/server/telecom/AsyncRingtonePlayer.java
index 3fbac1f..912305b 100644
--- a/src/com/android/server/telecom/AsyncRingtonePlayer.java
+++ b/src/com/android/server/telecom/AsyncRingtonePlayer.java
@@ -30,6 +30,9 @@
 import com.android.internal.os.SomeArgs;
 import com.android.internal.util.Preconditions;
 
+import java.util.ArrayList;
+import java.util.concurrent.CountDownLatch;
+import java.util.concurrent.TimeUnit;
 import java.util.function.BiConsumer;
 import java.util.function.Supplier;
 
@@ -39,6 +42,9 @@
  */
 @VisibleForTesting
 public class AsyncRingtonePlayer {
+    // Maximum amount of time we will delay playing a ringtone while waiting for audio routing to
+    // be ready.
+    private static final int PLAY_DELAY_TIMEOUT_MS = 1000;
     // Message codes used with the ringtone thread.
     private static final int EVENT_PLAY = 1;
     private static final int EVENT_STOP = 2;
@@ -49,6 +55,23 @@
     /** The current ringtone. Only used by the ringtone thread. */
     private Ringtone mRingtone;
 
+    /**
+     * Set to true if we are setting up to play or are currently playing. False if we are stopping
+     * or have stopped playing.
+     */
+    private boolean mIsPlaying = false;
+
+    /**
+     * Set to true if BT HFP is active and audio is connected.
+     */
+    private boolean mIsBtActive = false;
+
+    /**
+     * A list of pending ringing ready latches, which are used to delay the ringing command until
+     * audio paths are set and ringing is ready.
+     */
+    private final ArrayList<CountDownLatch> mPendingRingingLatches = new ArrayList<>();
+
     public AsyncRingtonePlayer() {
         // Empty
     }
@@ -60,21 +83,81 @@
      *
      * @param ringtoneSupplier The {@link Ringtone} factory.
      * @param ringtoneConsumer The {@link Ringtone} post-creation callback (to start the vibration).
+     * @param isHfpDeviceConnected True if there is a HFP BT device connected, false otherwise.
      */
     public void play(@NonNull Supplier<Ringtone> ringtoneSupplier,
-            BiConsumer<Ringtone, Boolean> ringtoneConsumer) {
+            BiConsumer<Ringtone, Boolean> ringtoneConsumer,  boolean isHfpDeviceConnected) {
         Log.d(this, "Posting play.");
+        mIsPlaying = true;
         SomeArgs args = SomeArgs.obtain();
         args.arg1 = ringtoneSupplier;
         args.arg2 = ringtoneConsumer;
         args.arg3 = Log.createSubsession();
+        args.arg4 = prepareRingingReadyLatch(isHfpDeviceConnected);
         postMessage(EVENT_PLAY, true /* shouldCreateHandler */, args);
     }
 
     /** Stops playing the ringtone. */
     public void stop() {
         Log.d(this, "Posting stop.");
+        mIsPlaying = false;
         postMessage(EVENT_STOP, false /* shouldCreateHandler */, null);
+        // Clear any pending ringing latches so that we do not have to wait for its timeout to pass
+        // before calling stop.
+        clearPendingRingingLatches();
+    }
+
+    /**
+     * Called when the BT HFP profile active state changes.
+     * @param isBtActive A BT device is connected and audio is active.
+     */
+    public void updateBtActiveState(boolean isBtActive) {
+        Log.i(this, "updateBtActiveState: " + isBtActive);
+        synchronized (mPendingRingingLatches) {
+            mIsBtActive = isBtActive;
+            if (isBtActive) mPendingRingingLatches.forEach(CountDownLatch::countDown);
+        }
+    }
+
+    /**
+     * Prepares a new ringing ready latch and tracks it in a list. Once the ready latch has been
+     * used, {@link #removePendingRingingReadyLatch(CountDownLatch)} must be called on this latch.
+     * @param isHfpDeviceConnected true if there is a HFP device connected.
+     * @return the newly prepared CountDownLatch
+     */
+    private CountDownLatch prepareRingingReadyLatch(boolean isHfpDeviceConnected) {
+        CountDownLatch latch = new CountDownLatch(1);
+        synchronized (mPendingRingingLatches) {
+            // We only want to delay ringing if BT is connected but not active yet.
+            boolean isDelayRequired = isHfpDeviceConnected && !mIsBtActive;
+            Log.i(this, "prepareRingingReadyLatch:"
+                    + " connected=" + isHfpDeviceConnected
+                    + ", BT active=" + mIsBtActive
+                    + ", isDelayRequired=" + isDelayRequired);
+            if (!isDelayRequired) latch.countDown();
+            mPendingRingingLatches.add(latch);
+        }
+        return latch;
+    }
+
+    /**
+     * Remove a ringing ready latch that has been used and is no longer pending.
+     * @param l The latch to remove.
+     */
+    private void removePendingRingingReadyLatch(CountDownLatch l) {
+        synchronized (mPendingRingingLatches) {
+            mPendingRingingLatches.remove(l);
+        }
+    }
+
+    /**
+     * Count down all pending ringing ready latches and then clear the list.
+     */
+    private void clearPendingRingingLatches() {
+        synchronized (mPendingRingingLatches) {
+            mPendingRingingLatches.forEach(CountDownLatch::countDown);
+            mPendingRingingLatches.clear();
+        }
     }
 
     /**
@@ -129,6 +212,7 @@
         Supplier<Ringtone> ringtoneSupplier = (Supplier<Ringtone>) args.arg1;
         BiConsumer<Ringtone, Boolean> ringtoneConsumer = (BiConsumer<Ringtone, Boolean>) args.arg2;
         Session session = (Session) args.arg3;
+        CountDownLatch ringingReadyLatch = (CountDownLatch) args.arg4;
         args.recycle();
 
         Log.continueSession(session, "ARP.hP");
@@ -136,17 +220,29 @@
             // Don't bother with any of this if there is an EVENT_STOP waiting, but give the
             // consumer a chance to do anything no matter what.
             if (mHandler.hasMessages(EVENT_STOP)) {
+                Log.i(this, "handlePlay: skipping play early due to pending STOP");
+                removePendingRingingReadyLatch(ringingReadyLatch);
                 ringtoneConsumer.accept(null, /* stopped= */ true);
                 return;
             }
             Ringtone ringtone = null;
             boolean hasStopped = false;
             try {
+                try {
+                    Log.i(this, "handlePlay: delay ring for ready signal...");
+                    boolean reachedZero = ringingReadyLatch.await(PLAY_DELAY_TIMEOUT_MS,
+                            TimeUnit.MILLISECONDS);
+                    Log.i(this, "handlePlay: ringing ready, timeout=" + !reachedZero);
+                } catch (InterruptedException e) {
+                    Log.w(this, "handlePlay: latch exception: " + e);
+                }
                 ringtone = ringtoneSupplier.get();
-                // Ringtone supply can be slow. Re-check for stop event.
+                // Ringtone supply can be slow or stop command could have been issued while waiting
+                // for BT to move to CONNECTED state. Re-check for stop event.
                 if (mHandler.hasMessages(EVENT_STOP)) {
+                    Log.i(this, "handlePlay: skipping play due to pending STOP");
                     hasStopped = true;
-                    ringtone.stop();  // proactively release the ringtone.
+                    if (ringtone != null) ringtone.stop();  // proactively release the ringtone.
                     return;
                 }
                 // setRingtone even if null - it also stops any current ringtone to be consistent
@@ -168,6 +264,7 @@
                 mRingtone.play();
                 Log.i(this, "Play ringtone, looping.");
             } finally {
+                removePendingRingingReadyLatch(ringingReadyLatch);
                 ringtoneConsumer.accept(ringtone, hasStopped);
             }
         } finally {
@@ -196,11 +293,15 @@
         }
     }
 
+    /**
+     * @return true if we are currently preparing or playing a ringtone, false if we are not.
+     */
     public boolean isPlaying() {
-        return mRingtone != null;
+        return mIsPlaying;
     }
 
     private void setRingtone(@Nullable Ringtone ringtone) {
+        Log.i(this, "setRingtone: ringtone null="  + (ringtone == null));
         // Make sure that any previously created instance of Ringtone is stopped so the MediaPlayer
         // can be released, before replacing mRingtone with a new instance. This is always created
         // as a looping Ringtone, so if not stopped it will keep playing on the background.
diff --git a/src/com/android/server/telecom/Call.java b/src/com/android/server/telecom/Call.java
index dd8e7e8..341d77e 100644
--- a/src/com/android/server/telecom/Call.java
+++ b/src/com/android/server/telecom/Call.java
@@ -17,12 +17,13 @@
 package com.android.server.telecom;
 
 import static android.provider.CallLog.Calls.MISSED_REASON_NOT_MISSED;
-import static android.telecom.Call.EVENT_DISPLAY_SOS_MESSAGE;
+import static android.telephony.TelephonyManager.EVENT_DISPLAY_EMERGENCY_MESSAGE;
 
 import android.annotation.NonNull;
 import android.annotation.Nullable;
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.graphics.Bitmap;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
@@ -30,6 +31,7 @@
 import android.os.Bundle;
 import android.os.Handler;
 import android.os.Looper;
+import android.os.OutcomeReceiver;
 import android.os.ParcelFileDescriptor;
 import android.os.Parcelable;
 import android.os.RemoteException;
@@ -43,6 +45,7 @@
 import android.telecom.CallAudioState;
 import android.telecom.CallDiagnosticService;
 import android.telecom.CallDiagnostics;
+import android.telecom.CallException;
 import android.telecom.CallerInfo;
 import android.telecom.Conference;
 import android.telecom.Connection;
@@ -55,7 +58,6 @@
 import android.telecom.ParcelableConnection;
 import android.telecom.PhoneAccount;
 import android.telecom.PhoneAccountHandle;
-import android.telecom.Response;
 import android.telecom.StatusHints;
 import android.telecom.TelecomManager;
 import android.telecom.VideoProfile;
@@ -70,9 +72,14 @@
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.telecom.IVideoProvider;
 import com.android.internal.util.Preconditions;
+import com.android.server.telecom.flags.FeatureFlags;
+import com.android.server.telecom.flags.Flags;
 import com.android.server.telecom.stats.CallFailureCause;
 import com.android.server.telecom.stats.CallStateChangedAtomWriter;
 import com.android.server.telecom.ui.ToastFactory;
+import com.android.server.telecom.voip.TransactionManager;
+import com.android.server.telecom.voip.VerifyCallStateChangeTransaction;
+import com.android.server.telecom.voip.VoipCallTransactionResult;
 
 import java.io.IOException;
 import java.text.SimpleDateFormat;
@@ -118,6 +125,24 @@
 
     private static final char NO_DTMF_TONE = '\0';
 
+
+    /**
+     * Listener for CallState changes which can be leveraged by a Transaction.
+     */
+    public interface CallStateListener {
+        void onCallStateChanged(int newCallState);
+    }
+
+    public List<CallStateListener> mCallStateListeners = new ArrayList<>();
+
+    public void addCallStateListener(CallStateListener newListener) {
+        mCallStateListeners.add(newListener);
+    }
+
+    public boolean removeCallStateListener(CallStateListener newListener) {
+        return mCallStateListeners.remove(newListener);
+    }
+
     /**
      * Listener for events on the call.
      */
@@ -283,18 +308,25 @@
                 @Override
                 public void onCallerInfoQueryComplete(Uri handle, CallerInfo callerInfo) {
                     synchronized (mLock) {
-                        Call.this.setCallerInfo(handle, callerInfo);
+                        Call call = Call.this;
+                        if (call != null) {
+                            call.setCallerInfo(handle, callerInfo);
+                        }
                     }
                 }
 
                 @Override
                 public void onContactPhotoQueryComplete(Uri handle, CallerInfo callerInfo) {
                     synchronized (mLock) {
-                        Call.this.setCallerInfo(handle, callerInfo);
+                        Call call = Call.this;
+                        if (call != null) {
+                            call.setCallerInfo(handle, callerInfo);
+                        }
                     }
                 }
             };
 
+    private final boolean mIsModifyStatePermissionGranted;
     /**
      * One of CALL_DIRECTION_INCOMING, CALL_DIRECTION_OUTGOING, or CALL_DIRECTION_UNKNOWN
      */
@@ -406,6 +438,13 @@
     private int mCallerDisplayNamePresentation;
 
     /**
+     * The remote connection service which is attempted or already connecting this call. This is set
+     * to a non-null value only when a connection manager phone account is in use. When set, this
+     * will correspond to the target phone account of the {@link Call}.
+     */
+    private ConnectionServiceWrapper mRemoteConnectionService;
+
+    /**
      * The connection service which is attempted or already connecting this call.
      */
     private ConnectionServiceWrapper mConnectionService;
@@ -757,6 +796,8 @@
      */
     private CompletableFuture<Boolean> mDisconnectFuture;
 
+    private FeatureFlags mFlags;
+
     /**
      * Persists the specified parameters and initializes the new instance.
      * @param context The context.
@@ -788,11 +829,12 @@
             boolean shouldAttachToExistingConnection,
             boolean isConference,
             ClockProxy clockProxy,
-            ToastFactory toastFactory) {
+            ToastFactory toastFactory,
+            FeatureFlags featureFlags) {
         this(callId, context, callsManager, lock, repository, phoneNumberUtilsAdapter,
                handle, null, gatewayInfo, connectionManagerPhoneAccountHandle,
                targetPhoneAccountHandle, callDirection, shouldAttachToExistingConnection,
-               isConference, clockProxy, toastFactory);
+               isConference, clockProxy, toastFactory, featureFlags);
 
     }
 
@@ -812,8 +854,9 @@
             boolean shouldAttachToExistingConnection,
             boolean isConference,
             ClockProxy clockProxy,
-            ToastFactory toastFactory) {
-
+            ToastFactory toastFactory,
+            FeatureFlags featureFlags) {
+        mFlags = featureFlags;
         mId = callId;
         mConnectionId = callId;
         mState = (isConference && callDirection != CALL_DIRECTION_INCOMING &&
@@ -844,6 +887,8 @@
         mStartRingTime = 0;
 
         mCallStateChangedAtomWriter.setExistingCallCount(callsManager.getCalls().size());
+        mIsModifyStatePermissionGranted =
+                isModifyPhoneStatePermissionGranted(getDelegatePhoneAccountHandle());
     }
 
     /**
@@ -863,6 +908,7 @@
      * connection, regardless of whether it's incoming or outgoing.
      * @param connectTimeMillis The connection time of the call.
      * @param clockProxy
+     * @param featureFlags The telecom feature flags.
      */
     Call(
             String callId,
@@ -881,11 +927,13 @@
             long connectTimeMillis,
             long connectElapsedTimeMillis,
             ClockProxy clockProxy,
-            ToastFactory toastFactory) {
+            ToastFactory toastFactory,
+            FeatureFlags featureFlags) {
         this(callId, context, callsManager, lock, repository,
                 phoneNumberUtilsAdapter, handle, gatewayInfo,
                 connectionManagerPhoneAccountHandle, targetPhoneAccountHandle, callDirection,
-                shouldAttachToExistingConnection, isConference, clockProxy, toastFactory);
+                shouldAttachToExistingConnection, isConference, clockProxy, toastFactory,
+                featureFlags);
 
         mConnectTimeMillis = connectTimeMillis;
         mConnectElapsedTimeMillis = connectElapsedTimeMillis;
@@ -1328,6 +1376,12 @@
                 Log.addEvent(this, event, stringData);
             }
 
+            if (mFlags.transactionalCsVerifier()) {
+                for (CallStateListener listener : mCallStateListeners) {
+                    listener.onCallStateChanged(newState);
+                }
+            }
+
             mCallStateChangedAtomWriter
                     .setDisconnectCause(getDisconnectCause())
                     .setSelfManaged(isSelfManaged())
@@ -1733,8 +1787,12 @@
                     accountHandle.getComponentName().getPackageName(),
                     mContext.getPackageManager());
             // Set the associated user for the call for MT calls based on the target phone account.
-            if (isIncoming() && !accountHandle.getUserHandle().equals(mAssociatedUser)) {
-                setAssociatedUser(accountHandle.getUserHandle());
+            UserHandle associatedUser = UserUtil.getAssociatedUserForCall(
+                    mFlags.associatedUserRefactorForWorkProfile(),
+                    mCallsManager.getPhoneAccountRegistrar(), mCallsManager.getCurrentUserHandle(),
+                    accountHandle);
+            if (isIncoming() && !associatedUser.equals(mAssociatedUser)) {
+                setAssociatedUser(associatedUser);
             }
         }
     }
@@ -2313,11 +2371,25 @@
 
     @VisibleForTesting
     public void setConnectionService(ConnectionServiceWrapper service) {
+        setConnectionService(service, null);
+    }
+
+    @VisibleForTesting
+    public void setConnectionService(
+            ConnectionServiceWrapper service,
+            ConnectionServiceWrapper remoteService
+    ) {
         Preconditions.checkNotNull(service);
 
         clearConnectionService();
 
         service.incrementAssociatedCallCount();
+
+        if (mFlags.updatedRcsCallCountTracking() && remoteService != null) {
+            remoteService.incrementAssociatedCallCount();
+            mRemoteConnectionService = remoteService;
+        }
+
         mConnectionService = service;
         mAnalytics.setCallConnectionService(service.getComponentName().flattenToShortString());
         mConnectionService.addCall(this);
@@ -2325,10 +2397,12 @@
 
     /**
      * Perform an in-place replacement of the {@link ConnectionServiceWrapper} for this Call.
-     * Removes the call from its former {@link ConnectionServiceWrapper}, ensuring that the
-     * ConnectionService is NOT unbound if the call count hits zero.
-     * This is used by the {@link ConnectionServiceWrapper} when handling {@link Connection} and
-     * {@link Conference} additions via a ConnectionManager.
+     * Removes the call from its former {@link ConnectionServiceWrapper}, while still ensuring the
+     * former {@link ConnectionServiceWrapper} is tracked as the mRemoteConnectionService for this
+     * call so that the associatedCallCount of that {@link ConnectionServiceWrapper} is accurately
+     * tracked until it is supposed to be unbound.
+     * This method is used by the {@link ConnectionServiceWrapper} when handling {@link Connection}
+     * and {@link Conference} additions via a ConnectionManager.
      * The original {@link android.telecom.ConnectionService} will directly add external calls and
      * conferences to Telecom as well as the ConnectionManager, which will add to Telecom.  In these
      * cases since its first added to via the original CS, we want to change the CS responsible for
@@ -2341,9 +2415,18 @@
 
         if (mConnectionService != null) {
             ConnectionServiceWrapper serviceTemp = mConnectionService;
+
+            if (mFlags.updatedRcsCallCountTracking()) {
+                // Continue to track the former CS for this call so that it doesn't unbind early:
+                mRemoteConnectionService = serviceTemp;
+            }
+
             mConnectionService = null;
             serviceTemp.removeCall(this);
-            serviceTemp.decrementAssociatedCallCount(true /*isSuppressingUnbind*/);
+
+            if (!mFlags.updatedRcsCallCountTracking()) {
+                serviceTemp.decrementAssociatedCallCount(true /*isSuppressingUnbind*/);
+            }
         }
 
         service.incrementAssociatedCallCount();
@@ -2357,6 +2440,8 @@
     void clearConnectionService() {
         if (mConnectionService != null) {
             ConnectionServiceWrapper serviceTemp = mConnectionService;
+            ConnectionServiceWrapper remoteServiceTemp = mRemoteConnectionService;
+            mRemoteConnectionService = null;
             mConnectionService = null;
             serviceTemp.removeCall(this);
 
@@ -2367,6 +2452,10 @@
             // necessary, but cleaning up mConnectionService prior to triggering an unbind is good
             // to do.
             decrementAssociatedCallCount(serviceTemp);
+
+            if (mFlags.updatedRcsCallCountTracking() && remoteServiceTemp != null) {
+                decrementAssociatedCallCount(remoteServiceTemp);
+            }
         }
     }
 
@@ -2385,7 +2474,7 @@
             return;
         }
         mCreateConnectionProcessor = new CreateConnectionProcessor(this, mRepository, this,
-                phoneAccountRegistrar, mContext);
+                phoneAccountRegistrar, mContext, mFlags);
         mCreateConnectionProcessor.process();
     }
 
@@ -2898,11 +2987,19 @@
         hold(null /* reason */);
     }
 
+    /**
+     * This method requests the ConnectionService or TransactionalService hosting the call to put
+     * the call on hold
+     */
     public void hold(String reason) {
         if (mState == CallState.ACTIVE) {
             if (mTransactionalService != null) {
                 mTransactionalService.onSetInactive(this);
             } else if (mConnectionService != null) {
+                if (mFlags.transactionalCsVerifier()) {
+                    awaitCallStateChangeAndMaybeDisconnectCall(CallState.ON_HOLD, isSelfManaged(),
+                            "hold");
+                }
                 mConnectionService.hold(this);
             } else {
                 Log.e(this, new NullPointerException(),
@@ -2913,6 +3010,27 @@
     }
 
     /**
+     * helper that can be used for any callback that requests a call state change and wants to
+     * verify the change
+     */
+    public void awaitCallStateChangeAndMaybeDisconnectCall(int targetCallState,
+            boolean shouldDisconnectUponTimeout, String callingMethod) {
+        TransactionManager tm = TransactionManager.getInstance();
+        tm.addTransaction(new VerifyCallStateChangeTransaction(mCallsManager,
+                this, targetCallState, shouldDisconnectUponTimeout), new OutcomeReceiver<>() {
+            @Override
+            public void onResult(VoipCallTransactionResult result) {
+            }
+
+            @Override
+            public void onError(CallException e) {
+                Log.i(this, "awaitCallStateChangeAndMaybeDisconnectCall: %s: onError"
+                        + " due to CallException=[%s]", callingMethod, e);
+            }
+        });
+    }
+
+    /**
      * Releases the call from hold if it is currently active.
      */
     @VisibleForTesting
@@ -3039,6 +3157,12 @@
                     Connection.EXTRA_REMOTE_PHONE_ACCOUNT_HANDLE));
         }
 
+        if (mExtras.containsKey(TelecomManager.EXTRA_DO_NOT_LOG_CALL)) {
+            if (source != SOURCE_CONNECTION_SERVICE || !mIsModifyStatePermissionGranted) {
+                mExtras.remove(TelecomManager.EXTRA_DO_NOT_LOG_CALL);
+            }
+        }
+
         // If the change originated from an InCallService, notify the connection service.
         if (source == SOURCE_INCALL_SERVICE) {
             Log.addEvent(this, LogUtils.Events.ICS_EXTRAS_CHANGED);
@@ -3053,6 +3177,15 @@
         }
     }
 
+    private boolean isModifyPhoneStatePermissionGranted(PhoneAccountHandle phoneAccountHandle) {
+        if (phoneAccountHandle == null) {
+            return false;
+        }
+        String packageName = phoneAccountHandle.getComponentName().getPackageName();
+        return PackageManager.PERMISSION_GRANTED == mContext.getPackageManager().checkPermission(
+                android.Manifest.permission.MODIFY_PHONE_STATE, packageName);
+    }
+
     /**
      * Removes extras from the extras bundle associated with this {@link Call}.
      *
@@ -3293,62 +3426,16 @@
      */
     public void sendCallEvent(String event, int targetSdkVer, Bundle extras) {
         if (mConnectionService != null || mTransactionalService != null) {
-            if (android.telecom.Call.EVENT_REQUEST_HANDOVER.equals(event)) {
-                if (targetSdkVer > Build.VERSION_CODES.P) {
-                    Log.e(this, new Exception(), "sendCallEvent failed. Use public api handoverTo" +
-                            " for API > 28(P)");
-                    // Event-based Handover APIs are deprecated, so inform the user.
-                    mHandler.post(new Runnable() {
-                        @Override
-                        public void run() {
-                            mToastFactory.makeText(mContext,
-                                    "WARNING: Event-based handover APIs are deprecated and will no"
-                                            + " longer function in Android Q.",
-                                    Toast.LENGTH_LONG).show();
-                        }
-                    });
-
-                    // Uncomment and remove toast at feature complete: return;
-                }
-
-                // Handover requests are targeted at Telecom, not the ConnectionService.
-                if (extras == null) {
-                    Log.w(this, "sendCallEvent: %s event received with null extras.",
-                            android.telecom.Call.EVENT_REQUEST_HANDOVER);
-                    sendEventToService(this, android.telecom.Call.EVENT_HANDOVER_FAILED,
-                            null);
-                    return;
-                }
-                Parcelable parcelable = extras.getParcelable(
-                        android.telecom.Call.EXTRA_HANDOVER_PHONE_ACCOUNT_HANDLE);
-                if (!(parcelable instanceof PhoneAccountHandle) || parcelable == null) {
-                    Log.w(this, "sendCallEvent: %s event received with invalid handover acct.",
-                            android.telecom.Call.EVENT_REQUEST_HANDOVER);
-                    sendEventToService(this, android.telecom.Call.EVENT_HANDOVER_FAILED, null);
-                    return;
-                }
-                PhoneAccountHandle phoneAccountHandle = (PhoneAccountHandle) parcelable;
-                int videoState = extras.getInt(android.telecom.Call.EXTRA_HANDOVER_VIDEO_STATE,
-                        VideoProfile.STATE_AUDIO_ONLY);
-                Parcelable handoverExtras = extras.getParcelable(
-                        android.telecom.Call.EXTRA_HANDOVER_EXTRAS);
-                Bundle handoverExtrasBundle = null;
-                if (handoverExtras instanceof Bundle) {
-                    handoverExtrasBundle = (Bundle) handoverExtras;
-                }
-                requestHandover(phoneAccountHandle, videoState, handoverExtrasBundle, true);
-            } else {
-                // Relay bluetooth call quality reports to the call diagnostic service.
-                if (BluetoothCallQualityReport.EVENT_BLUETOOTH_CALL_QUALITY_REPORT.equals(event)
-                        && extras.containsKey(
-                        BluetoothCallQualityReport.EXTRA_BLUETOOTH_CALL_QUALITY_REPORT)) {
-                    notifyBluetoothCallQualityReport(extras.getParcelable(
-                            BluetoothCallQualityReport.EXTRA_BLUETOOTH_CALL_QUALITY_REPORT
-                    ));
-                }
-                Log.addEvent(this, LogUtils.Events.CALL_EVENT, event);
-                sendEventToService(this, event, extras);
+            // Relay bluetooth call quality reports to the call diagnostic service.
+            if (BluetoothCallQualityReport.EVENT_BLUETOOTH_CALL_QUALITY_REPORT.equals(event)
+                    && extras.containsKey(
+                    BluetoothCallQualityReport.EXTRA_BLUETOOTH_CALL_QUALITY_REPORT)) {
+                notifyBluetoothCallQualityReport(extras.getParcelable(
+                        BluetoothCallQualityReport.EXTRA_BLUETOOTH_CALL_QUALITY_REPORT
+                ));
             }
+            Log.addEvent(this, LogUtils.Events.CALL_EVENT, event);
+            sendEventToService(this, event, extras);
         } else {
             Log.e(this, new NullPointerException(),
                     "sendCallEvent failed due to null CS callId=%s", getId());
@@ -3663,7 +3750,8 @@
         }
 
         String newName = callerInfo.getName();
-        boolean contactNameChanged = mCallerInfo == null || !mCallerInfo.getName().equals(newName);
+        boolean contactNameChanged = mCallerInfo == null ||
+                !Objects.equals(mCallerInfo.getName(), newName);
 
         mCallerInfo = callerInfo;
         Log.i(this, "CallerInfo received for %s: %s", Log.piiHandle(mHandle), callerInfo);
@@ -3689,7 +3777,7 @@
             Log.d(this, "maybeLoadCannedSmsResponses: starting task to load messages");
             mCannedSmsResponsesLoadingStarted = true;
             mCallsManager.getRespondViaSmsManager().loadCannedTextMessages(
-                    new Response<Void, List<String>>() {
+                    new CallsManager.Response<Void, List<String>>() {
                         @Override
                         public void onResult(Void request, List<String>... result) {
                             if (result.length > 0) {
@@ -4032,7 +4120,7 @@
      * @param associatedUser
      */
     public void setAssociatedUser(UserHandle associatedUser) {
-        Log.i(this, "Setting associated user for call");
+        Log.i(this, "Setting associated user for call: %s", associatedUser);
         Preconditions.checkNotNull(associatedUser);
         mAssociatedUser = associatedUser;
     }
@@ -4182,8 +4270,8 @@
                 l.onReceivedCallQualityReport(this, callQuality);
             }
         } else {
-            if (event.equals(EVENT_DISPLAY_SOS_MESSAGE) && !isEmergencyCall()) {
-                Log.w(this, "onConnectionEvent: EVENT_DISPLAY_SOS_MESSAGE is sent "
+            if (event.equals(EVENT_DISPLAY_EMERGENCY_MESSAGE) && !isEmergencyCall()) {
+                Log.w(this, "onConnectionEvent: EVENT_DISPLAY_EMERGENCY_MESSAGE is sent "
                         + "without an emergency call");
                 return;
             }
@@ -4504,6 +4592,7 @@
     }
 
     public void setStartFailCause(CallFailureCause cause) {
+        Log.i(this, "setStartFailCause: cause = %s; callId = %s", cause, this.getId());
         mCallStateChangedAtomWriter.setStartFailCause(cause);
     }
 
diff --git a/src/com/android/server/telecom/CallAudioCommunicationDeviceTracker.java b/src/com/android/server/telecom/CallAudioCommunicationDeviceTracker.java
new file mode 100644
index 0000000..5fc2414
--- /dev/null
+++ b/src/com/android/server/telecom/CallAudioCommunicationDeviceTracker.java
@@ -0,0 +1,224 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.telecom;
+
+import android.bluetooth.BluetoothDevice;
+import android.content.Context;
+import android.media.AudioDeviceInfo;
+import android.media.AudioManager;
+import android.telecom.Log;
+
+import com.android.internal.annotations.VisibleForTesting;
+import com.android.server.telecom.bluetooth.BluetoothRouteManager;
+import com.android.server.telecom.flags.Flags;
+
+import java.util.Arrays;
+import java.util.List;
+import java.util.Set;
+import java.util.concurrent.Semaphore;
+
+/**
+ * Helper class used to keep track of the requested communication device within Telecom for audio
+ * use cases. Handles the set/clear communication use case logic for all audio routes (speaker, BT,
+ * headset, and earpiece). For BT devices, this handles switches between hearing aids, SCO, and LE
+ * audio (also takes into account switching between multiple LE audio devices).
+ */
+public class CallAudioCommunicationDeviceTracker {
+
+    // Use -1 indicates device is not set for any communication use case
+    private static final int sAUDIO_DEVICE_TYPE_INVALID = -1;
+    // Possible bluetooth audio device types
+    private static final Set<Integer> sBT_AUDIO_DEVICE_TYPES = Set.of(
+            AudioDeviceInfo.TYPE_BLE_HEADSET,
+            AudioDeviceInfo.TYPE_HEARING_AID,
+            AudioDeviceInfo.TYPE_BLUETOOTH_SCO
+    );
+    private AudioManager mAudioManager;
+    private BluetoothRouteManager mBluetoothRouteManager;
+    private int mAudioDeviceType = sAUDIO_DEVICE_TYPE_INVALID;
+    // Keep track of the locally requested BT audio device if set
+    private String mBtAudioDevice = null;
+    private final Semaphore mLock =  new Semaphore(1);
+
+    public CallAudioCommunicationDeviceTracker(Context context) {
+        mAudioManager = context.getSystemService(AudioManager.class);
+    }
+
+    public void setBluetoothRouteManager(BluetoothRouteManager bluetoothRouteManager) {
+        mBluetoothRouteManager = bluetoothRouteManager;
+    }
+
+    public boolean isAudioDeviceSetForType(int audioDeviceType) {
+        return mAudioDeviceType == audioDeviceType;
+    }
+
+    public int getCurrentLocallyRequestedCommunicationDevice() {
+       return mAudioDeviceType;
+    }
+
+    @VisibleForTesting
+    public void setTestCommunicationDevice(int audioDeviceType) {
+        mAudioDeviceType = audioDeviceType;
+    }
+
+    public void clearBtCommunicationDevice() {
+        if (mBtAudioDevice == null) {
+            Log.i(this, "No bluetooth device was set for communication that can be cleared.");
+            return;
+        }
+        // If mBtAudioDevice is set, we know a BT audio device was set for communication so
+        // mAudioDeviceType corresponds to a BT device type (e.g. hearing aid, SCO, LE).
+        clearCommunicationDevice(mAudioDeviceType);
+    }
+
+    /*
+     * Sets the communication device for the passed in audio device type, if it's available for
+     * communication use cases. Tries to clear any communication device which was previously
+     * requested for communication before setting the new device.
+     * @param audioDeviceTypes The supported audio device types for the device.
+     * @param btDevice The bluetooth device to connect to (only used for switching between multiple
+     *        LE audio devices).
+     * @return {@code true} if the device was set for communication, {@code false} if the device
+     * wasn't set.
+     */
+    public boolean setCommunicationDevice(int audioDeviceType,
+            BluetoothDevice btDevice) {
+        if (Flags.communicationDeviceProtectedByLock()) {
+            mLock.tryAcquire();
+        }
+        // There is only one audio device type associated with each type of BT device.
+        boolean isBtDevice = sBT_AUDIO_DEVICE_TYPES.contains(audioDeviceType);
+        Log.i(this, "setCommunicationDevice: type = %s, isBtDevice = %s, btDevice = %s",
+                audioDeviceType, isBtDevice, btDevice);
+
+        // Account for switching between multiple LE audio devices.
+        boolean handleLeAudioDeviceSwitch = btDevice != null
+                && !btDevice.getAddress().equals(mBtAudioDevice);
+        if ((audioDeviceType == mAudioDeviceType
+                || isUsbHeadsetType(audioDeviceType, mAudioDeviceType))
+                && !handleLeAudioDeviceSwitch) {
+            Log.i(this, "Communication device is already set for this audio type");
+            return false;
+        }
+
+        AudioDeviceInfo activeDevice = null;
+        List<AudioDeviceInfo> devices = mAudioManager.getAvailableCommunicationDevices();
+        if (devices.size() == 0) {
+            Log.w(this, "No communication devices available");
+            return false;
+        }
+
+        for (AudioDeviceInfo device : devices) {
+            Log.i(this, "Available device type: " + device.getType());
+            // Ensure that we do not select the same BT LE audio device for communication.
+            if ((audioDeviceType == device.getType()
+                    || isUsbHeadsetType(audioDeviceType, device.getType()))
+                    && !device.getAddress().equals(mBtAudioDevice)) {
+                activeDevice = device;
+                break;
+            }
+        }
+
+        if (activeDevice == null) {
+            Log.i(this, "No active device of type(s) %s available",
+                    audioDeviceType == AudioDeviceInfo.TYPE_WIRED_HEADSET
+                            ? Arrays.asList(AudioDeviceInfo.TYPE_WIRED_HEADSET,
+                                    AudioDeviceInfo.TYPE_USB_HEADSET)
+                            : audioDeviceType);
+            return false;
+        }
+
+        // Force clear previous communication device, if one was set, before setting the new device.
+        if (mAudioDeviceType != sAUDIO_DEVICE_TYPE_INVALID) {
+            clearCommunicationDevice(mAudioDeviceType);
+        }
+
+        // Turn activeDevice ON.
+        boolean result = mAudioManager.setCommunicationDevice(activeDevice);
+        if (!result) {
+            Log.w(this, "Could not set active device");
+        } else {
+            Log.i(this, "Active device set");
+            mAudioDeviceType = activeDevice.getType();
+            if (isBtDevice) {
+                mBtAudioDevice = activeDevice.getAddress();
+                if (audioDeviceType == AudioDeviceInfo.TYPE_BLE_HEADSET) {
+                    mBluetoothRouteManager.onAudioOn(mBtAudioDevice);
+                }
+            } else if (Flags.communicationDeviceProtectedByLock()) {
+                // Clear BT device if it's still stored. Handles race condition for when a non-BT
+                // device is set for communication shortly after a BT (LE) device is set for
+                // communication but the selection hasn't been cleared yet.
+                mBtAudioDevice = null;
+            }
+        }
+        if (Flags.communicationDeviceProtectedByLock()) {
+            mLock.release();
+        }
+        return result;
+    }
+
+    /*
+     * Clears the communication device for the passed in audio device types, given that the device
+     * has previously been set for communication.
+     * @param audioDeviceTypes The supported audio device types for the device.
+     */
+    public void clearCommunicationDevice(int audioDeviceType) {
+        if (Flags.communicationDeviceProtectedByLock()) {
+            mLock.tryAcquire();
+        }
+        // There is only one audio device type associated with each type of BT device.
+        boolean isBtDevice = sBT_AUDIO_DEVICE_TYPES.contains(audioDeviceType);
+        Log.i(this, "clearCommunicationDevice: type = %s, isBtDevice = %s",
+                audioDeviceType, isBtDevice);
+
+        if (audioDeviceType != mAudioDeviceType
+                && !isUsbHeadsetType(audioDeviceType, mAudioDeviceType)) {
+            Log.i(this, "Unable to clear communication device of type(s), %s. "
+                    + "Device does not correspond to the locally requested device type.",
+                    audioDeviceType == AudioDeviceInfo.TYPE_WIRED_HEADSET
+                            ? Arrays.asList(AudioDeviceInfo.TYPE_WIRED_HEADSET,
+                                    AudioDeviceInfo.TYPE_USB_HEADSET)
+                            : audioDeviceType
+            );
+            return;
+        }
+
+        if (mAudioManager == null) {
+            Log.i(this, "clearCommunicationDevice: mAudioManager is null");
+            return;
+        }
+
+        // Clear device and reset locally saved device type.
+        mAudioManager.clearCommunicationDevice();
+        mAudioDeviceType = sAUDIO_DEVICE_TYPE_INVALID;
+
+        if (isBtDevice && mBtAudioDevice != null) {
+            // Signal that BT audio was lost for device.
+            mBluetoothRouteManager.onAudioLost(mBtAudioDevice);
+            mBtAudioDevice = null;
+        }
+        if (Flags.communicationDeviceProtectedByLock()) {
+            mLock.release();
+        }
+    }
+
+    private boolean isUsbHeadsetType(int audioDeviceType, int sourceType) {
+        return audioDeviceType != AudioDeviceInfo.TYPE_WIRED_HEADSET
+                ? false : sourceType == AudioDeviceInfo.TYPE_USB_HEADSET;
+    }
+}
diff --git a/src/com/android/server/telecom/CallAudioManager.java b/src/com/android/server/telecom/CallAudioManager.java
index ff76b9e..96bf2c6 100644
--- a/src/com/android/server/telecom/CallAudioManager.java
+++ b/src/com/android/server/telecom/CallAudioManager.java
@@ -23,7 +23,6 @@
 import android.os.UserHandle;
 import android.telecom.CallAudioState;
 import android.telecom.Log;
-import android.telecom.PhoneAccount;
 import android.telecom.VideoProfile;
 import android.util.SparseArray;
 
@@ -31,11 +30,14 @@
 import com.android.internal.util.IndentingPrintWriter;
 import com.android.server.telecom.CallAudioModeStateMachine.MessageArgs.Builder;
 import com.android.server.telecom.bluetooth.BluetoothStateReceiver;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import java.util.Collection;
 import java.util.HashSet;
 import java.util.Set;
 import java.util.LinkedHashSet;
+import java.util.stream.Collectors;
+
 
 public class CallAudioManager extends CallsManagerListenerBase {
 
@@ -52,7 +54,7 @@
     private final Set<Call> mCalls;
     private final SparseArray<LinkedHashSet<Call>> mCallStateToCalls;
 
-    private final CallAudioRouteStateMachine mCallAudioRouteStateMachine;
+    private final CallAudioRouteAdapter mCallAudioRouteAdapter;
     private final CallAudioModeStateMachine mCallAudioModeStateMachine;
     private final BluetoothStateReceiver mBluetoothStateReceiver;
     private final CallsManager mCallsManager;
@@ -60,6 +62,7 @@
     private final Ringer mRinger;
     private final RingbackPlayer mRingbackPlayer;
     private final DtmfLocalTonePlayer mDtmfLocalTonePlayer;
+    private final FeatureFlags mFeatureFlags;
 
     private Call mStreamingCall;
     private Call mForegroundCall;
@@ -67,14 +70,15 @@
     private boolean mIsDisconnectedTonePlaying = false;
     private InCallTonePlayer mHoldTonePlayer;
 
-    public CallAudioManager(CallAudioRouteStateMachine callAudioRouteStateMachine,
+    public CallAudioManager(CallAudioRouteAdapter callAudioRouteAdapter,
             CallsManager callsManager,
             CallAudioModeStateMachine callAudioModeStateMachine,
             InCallTonePlayer.Factory playerFactory,
             Ringer ringer,
             RingbackPlayer ringbackPlayer,
             BluetoothStateReceiver bluetoothStateReceiver,
-            DtmfLocalTonePlayer dtmfLocalTonePlayer) {
+            DtmfLocalTonePlayer dtmfLocalTonePlayer,
+            FeatureFlags featureFlags) {
         mActiveDialingOrConnectingCalls = new LinkedHashSet<>(1);
         mRingingCalls = new LinkedHashSet<>(1);
         mHoldingCalls = new LinkedHashSet<>(1);
@@ -92,7 +96,7 @@
             put(CallState.AUDIO_PROCESSING, mAudioProcessingCalls);
         }};
 
-        mCallAudioRouteStateMachine = callAudioRouteStateMachine;
+        mCallAudioRouteAdapter = callAudioRouteAdapter;
         mCallAudioModeStateMachine = callAudioModeStateMachine;
         mCallsManager = callsManager;
         mPlayerFactory = playerFactory;
@@ -100,10 +104,11 @@
         mRingbackPlayer = ringbackPlayer;
         mBluetoothStateReceiver = bluetoothStateReceiver;
         mDtmfLocalTonePlayer = dtmfLocalTonePlayer;
+        mFeatureFlags = featureFlags;
 
         mPlayerFactory.setCallAudioManager(this);
         mCallAudioModeStateMachine.setCallAudioManager(this);
-        mCallAudioRouteStateMachine.setCallAudioManager(this);
+        mCallAudioRouteAdapter.setCallAudioManager(this);
     }
 
     @Override
@@ -116,7 +121,7 @@
             // State did not change, so no need to do anything.
             return;
         }
-        Log.d(LOG_TAG, "Call state changed for TC@%s: %s -> %s", call.getId(),
+        Log.i(this, "onCallStateChanged: Call state changed for TC@%s: %s -> %s", call.getId(),
                 CallState.toString(oldState), CallState.toString(newState));
 
         removeCallFromAllBins(call);
@@ -220,7 +225,7 @@
                 // When pulling a video call, automatically enable the speakerphone.
                 Log.d(LOG_TAG, "Switching to speaker because external video call %s was pulled." +
                         call.getId());
-                mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+                mCallAudioRouteAdapter.sendMessageWithSessionInfo(
                         CallAudioRouteStateMachine.SWITCH_SPEAKER);
             }
         }
@@ -302,7 +307,7 @@
                 VideoProfile.isReceptionEnabled(newVideoState);
 
         if (isUpgradeRequest) {
-            mPlayerFactory.createPlayer(InCallTonePlayer.TONE_VIDEO_UPGRADE).startTone();
+            mPlayerFactory.createPlayer(call, InCallTonePlayer.TONE_VIDEO_UPGRADE).startTone();
         }
     }
 
@@ -311,7 +316,7 @@
             // We only play tones for foreground calls.
             return;
         }
-        mPlayerFactory.createPlayer(InCallTonePlayer.TONE_RTT_REQUEST).startTone();
+        mPlayerFactory.createPlayer(call, InCallTonePlayer.TONE_RTT_REQUEST).startTone();
     }
 
     /**
@@ -324,7 +329,7 @@
      */
     @Override
     public void onHoldToneRequested(Call call) {
-        maybePlayHoldTone();
+        maybePlayHoldTone(call);
     }
 
     @Override
@@ -372,7 +377,7 @@
     @Override
     public void onConnectionServiceChanged(Call call, ConnectionServiceWrapper oldCs,
             ConnectionServiceWrapper newCs) {
-        mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+        mCallAudioRouteAdapter.sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.UPDATE_SYSTEM_AUDIO_ROUTE);
     }
 
@@ -390,13 +395,13 @@
             Log.d(LOG_TAG, "Switching to speaker because call %s transitioned video state from %s" +
                     " to %s", call.getId(), VideoProfile.videoStateToString(previousVideoState),
                     VideoProfile.videoStateToString(newVideoState));
-            mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+            mCallAudioRouteAdapter.sendMessageWithSessionInfo(
                     CallAudioRouteStateMachine.SWITCH_SPEAKER);
         }
     }
 
     public CallAudioState getCallAudioState() {
-        return mCallAudioRouteStateMachine.getCurrentCallAudioState();
+        return mCallAudioRouteAdapter.getCurrentCallAudioState();
     }
 
     public Call getPossiblyHeldForegroundCall() {
@@ -417,7 +422,7 @@
             Log.v(this, "ignoring toggleMute for emergency call");
             return;
         }
-        mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+        mCallAudioRouteAdapter.sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.TOGGLE_MUTE);
     }
 
@@ -437,7 +442,7 @@
             Log.v(this, "ignoring mute for emergency call");
         }
 
-        mCallAudioRouteStateMachine.sendMessageWithSessionInfo(shouldMute
+        mCallAudioRouteAdapter.sendMessageWithSessionInfo(shouldMute
                 ? CallAudioRouteStateMachine.MUTE_ON : CallAudioRouteStateMachine.MUTE_OFF);
     }
 
@@ -453,23 +458,23 @@
         Log.v(this, "setAudioRoute, route: %s", CallAudioState.audioRouteToString(route));
         switch (route) {
             case CallAudioState.ROUTE_BLUETOOTH:
-                mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+                mCallAudioRouteAdapter.sendMessageWithSessionInfo(
                         CallAudioRouteStateMachine.USER_SWITCH_BLUETOOTH, 0, bluetoothAddress);
                 return;
             case CallAudioState.ROUTE_SPEAKER:
-                mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+                mCallAudioRouteAdapter.sendMessageWithSessionInfo(
                         CallAudioRouteStateMachine.USER_SWITCH_SPEAKER);
                 return;
             case CallAudioState.ROUTE_WIRED_HEADSET:
-                mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+                mCallAudioRouteAdapter.sendMessageWithSessionInfo(
                         CallAudioRouteStateMachine.USER_SWITCH_HEADSET);
                 return;
             case CallAudioState.ROUTE_EARPIECE:
-                mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+                mCallAudioRouteAdapter.sendMessageWithSessionInfo(
                         CallAudioRouteStateMachine.USER_SWITCH_EARPIECE);
                 return;
             case CallAudioState.ROUTE_WIRED_OR_EARPIECE:
-                mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+                mCallAudioRouteAdapter.sendMessageWithSessionInfo(
                         CallAudioRouteStateMachine.USER_SWITCH_BASELINE_ROUTE,
                         CallAudioRouteStateMachine.NO_INCLUDE_BLUETOOTH_IN_BASELINE);
                 return;
@@ -484,7 +489,7 @@
      */
     void switchBaseline() {
         Log.i(this, "switchBaseline");
-        mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+        mCallAudioRouteAdapter.sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.USER_SWITCH_BASELINE_ROUTE,
                 CallAudioRouteStateMachine.INCLUDE_BLUETOOTH_IN_BASELINE);
     }
@@ -528,7 +533,7 @@
         synchronized (mCallsManager.getLock()) {
             Call localForegroundCall = mForegroundCall;
             boolean result = mRinger.startRinging(localForegroundCall,
-                    mCallAudioRouteStateMachine.isHfpDeviceAvailable());
+                    mCallAudioRouteAdapter.isHfpDeviceAvailable());
             if (result) {
                 localForegroundCall.setStartRingTime();
             }
@@ -561,7 +566,7 @@
 
     @VisibleForTesting
     public void setCallAudioRouteFocusState(int focusState) {
-        mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+        mCallAudioRouteAdapter.sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.SWITCH_FOCUS, focusState);
     }
 
@@ -571,8 +576,8 @@
     }
 
     @VisibleForTesting
-    public CallAudioRouteStateMachine getCallAudioRouteStateMachine() {
-        return mCallAudioRouteStateMachine;
+    public CallAudioRouteAdapter getCallAudioRouteAdapter() {
+        return mCallAudioRouteAdapter;
     }
 
     @VisibleForTesting
@@ -609,9 +614,9 @@
         mCallAudioModeStateMachine.dump(pw);
         pw.decreaseIndent();
 
-        pw.println("CallAudioRouteStateMachine:");
+        pw.println("mCallAudioRouteAdapter:");
         pw.increaseIndent();
-        mCallAudioRouteStateMachine.dump(pw);
+        mCallAudioRouteAdapter.dump(pw);
         pw.decreaseIndent();
 
         pw.println("BluetoothDeviceManager:");
@@ -623,7 +628,7 @@
     }
 
     @VisibleForTesting
-    public void setIsTonePlaying(boolean isTonePlaying) {
+    public void setIsTonePlaying(Call call, boolean isTonePlaying) {
         Log.i(this, "setIsTonePlaying; isTonePlaying=%b", isTonePlaying);
         mIsTonePlaying = isTonePlaying;
         mCallAudioModeStateMachine.sendMessageWithArgs(
@@ -632,7 +637,7 @@
                 makeArgsForModeStateMachine());
 
         if (!isTonePlaying && mIsDisconnectedTonePlaying) {
-            mCallsManager.onDisconnectedTonePlaying(false);
+            mCallsManager.onDisconnectedTonePlaying(call, false);
             mIsDisconnectedTonePlaying = false;
         }
     }
@@ -761,6 +766,7 @@
 
     private void updateForegroundCall() {
         Call oldForegroundCall = mForegroundCall;
+
         if (mActiveDialingOrConnectingCalls.size() > 0) {
             // Give preference for connecting calls over active/dialing for foreground-ness.
             Call possibleConnectingCall = null;
@@ -769,8 +775,27 @@
                     possibleConnectingCall = call;
                 }
             }
-            mForegroundCall = possibleConnectingCall == null ?
-                    mActiveDialingOrConnectingCalls.iterator().next() : possibleConnectingCall;
+            if (mFeatureFlags.ensureAudioModeUpdatesOnForegroundCallChange()) {
+                // Prefer a connecting call
+                if (possibleConnectingCall != null) {
+                    mForegroundCall = possibleConnectingCall;
+                } else {
+                    // Next, prefer an active or dialing call which is not in the process of being
+                    // disconnected.
+                    mForegroundCall = mActiveDialingOrConnectingCalls
+                            .stream()
+                            .filter(c -> (c.getState() == CallState.ACTIVE
+                                    || c.getState() == CallState.DIALING)
+                                    && !c.isLocallyDisconnecting())
+                            .findFirst()
+                            // If we can't find one, then just fall back to the first one.
+                            .orElse(mActiveDialingOrConnectingCalls.iterator().next());
+                }
+            } else {
+                // Legacy (buggy) behavior.
+                mForegroundCall = possibleConnectingCall == null ?
+                        mActiveDialingOrConnectingCalls.iterator().next() : possibleConnectingCall;
+            }
         } else if (mRingingCalls.size() > 0) {
             mForegroundCall = mRingingCalls.iterator().next();
         } else if (mHoldingCalls.size() > 0) {
@@ -778,12 +803,27 @@
         } else {
             mForegroundCall = null;
         }
-
+        Log.i(this, "updateForegroundCall; oldFg=%s, newFg=%s, aDC=%s, ring=%s, hold=%s",
+                (oldForegroundCall == null ? "none" : oldForegroundCall.getId()),
+                (mForegroundCall == null ? "none" : mForegroundCall.getId()),
+                mActiveDialingOrConnectingCalls.stream().map(c -> c.getId()).collect(
+                        Collectors.joining(",")),
+                mRingingCalls.stream().map(c -> c.getId()).collect(Collectors.joining(",")),
+                mHoldingCalls.stream().map(c -> c.getId()).collect(Collectors.joining(","))
+        );
         if (mForegroundCall != oldForegroundCall) {
-            mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+            mCallAudioRouteAdapter.sendMessageWithSessionInfo(
                     CallAudioRouteStateMachine.UPDATE_SYSTEM_AUDIO_ROUTE);
+
+            if (mForegroundCall != null
+                    && mFeatureFlags.ensureAudioModeUpdatesOnForegroundCallChange()) {
+                // Ensure the voip audio mode for the new foreground call is taken into account.
+                mCallAudioModeStateMachine.sendMessageWithArgs(
+                        CallAudioModeStateMachine.FOREGROUND_VOIP_MODE_CHANGE,
+                        makeArgsForModeStateMachine());
+            }
             mDtmfLocalTonePlayer.onForegroundCallChanged(oldForegroundCall, mForegroundCall);
-            maybePlayHoldTone();
+            maybePlayHoldTone(oldForegroundCall);
         }
     }
 
@@ -886,9 +926,9 @@
             Log.d(this, "Found a disconnected call with tone to play %d.", toneToPlay);
 
             if (toneToPlay != InCallTonePlayer.TONE_INVALID) {
-                boolean didToneStart = mPlayerFactory.createPlayer(toneToPlay).startTone();
+                boolean didToneStart = mPlayerFactory.createPlayer(call, toneToPlay).startTone();
                 if (didToneStart) {
-                    mCallsManager.onDisconnectedTonePlaying(true);
+                    mCallsManager.onDisconnectedTonePlaying(call, true);
                     mIsDisconnectedTonePlaying = true;
                 }
             }
@@ -908,10 +948,11 @@
     /**
      * Determines if a hold tone should be played and then starts or stops it accordingly.
      */
-    private void maybePlayHoldTone() {
+    private void maybePlayHoldTone(Call call) {
         if (shouldPlayHoldTone()) {
             if (mHoldTonePlayer == null) {
-                mHoldTonePlayer = mPlayerFactory.createPlayer(InCallTonePlayer.TONE_CALL_WAITING);
+                mHoldTonePlayer = mPlayerFactory.createPlayer(call,
+                        InCallTonePlayer.TONE_CALL_WAITING);
                 mHoldTonePlayer.startTone();
             }
         } else {
diff --git a/src/com/android/server/telecom/CallAudioModeStateMachine.java b/src/com/android/server/telecom/CallAudioModeStateMachine.java
index 9ad9094..6420f2e 100644
--- a/src/com/android/server/telecom/CallAudioModeStateMachine.java
+++ b/src/com/android/server/telecom/CallAudioModeStateMachine.java
@@ -16,6 +16,8 @@
 
 package com.android.server.telecom;
 
+import android.media.AudioAttributes;
+import android.media.AudioFocusRequest;
 import android.media.AudioManager;
 import android.os.Looper;
 import android.os.Message;
@@ -29,6 +31,7 @@
 import com.android.internal.util.IndentingPrintWriter;
 import com.android.internal.util.State;
 import com.android.internal.util.StateMachine;
+import com.android.server.telecom.flags.FeatureFlags;
 
 public class CallAudioModeStateMachine extends StateMachine {
     /**
@@ -38,11 +41,29 @@
     private LocalLog mLocalLog = new LocalLog(20);
     public static class Factory {
         public CallAudioModeStateMachine create(SystemStateHelper systemStateHelper,
-                AudioManager am) {
-            return new CallAudioModeStateMachine(systemStateHelper, am);
+                AudioManager am, FeatureFlags featureFlags,
+                CallAudioCommunicationDeviceTracker callAudioCommunicationDeviceTracker) {
+            return new CallAudioModeStateMachine(systemStateHelper, am,
+                    featureFlags, callAudioCommunicationDeviceTracker);
         }
     }
 
+    private static final AudioAttributes RING_AUDIO_ATTRIBUTES = new AudioAttributes.Builder()
+            .setUsage(AudioAttributes.USAGE_NOTIFICATION_RINGTONE)
+            .setLegacyStreamType(AudioManager.STREAM_RING)
+            .build();
+    public static final AudioFocusRequest RING_AUDIO_FOCUS_REQUEST = new AudioFocusRequest
+            .Builder(AudioManager.AUDIOFOCUS_GAIN_TRANSIENT)
+            .setAudioAttributes(RING_AUDIO_ATTRIBUTES).build();
+
+    private static final AudioAttributes CALL_AUDIO_ATTRIBUTES = new AudioAttributes.Builder()
+            .setUsage(AudioAttributes.USAGE_VOICE_COMMUNICATION)
+            .setLegacyStreamType(AudioManager.STREAM_VOICE_CALL)
+            .build();
+    public static final AudioFocusRequest CALL_AUDIO_FOCUS_REQUEST = new AudioFocusRequest
+            .Builder(AudioManager.AUDIOFOCUS_GAIN_TRANSIENT)
+            .setAudioAttributes(CALL_AUDIO_ATTRIBUTES).build();
+
     public static class MessageArgs {
         public boolean hasActiveOrDialingCalls;
         public boolean hasRingingCalls;
@@ -212,6 +233,8 @@
     public static final String STREAMING_STATE_NAME = StreamingFocusState.class.getSimpleName();
     public static final String COMMS_STATE_NAME = VoipCallFocusState.class.getSimpleName();
 
+    private AudioFocusRequest mCurrentAudioFocusRequest = null;
+
     private class BaseState extends State {
         @Override
         public boolean processMessage(Message msg) {
@@ -256,8 +279,23 @@
             Log.i(LOG_TAG, "Audio focus entering UNFOCUSED state");
             mLocalLog.log("Enter UNFOCUSED");
             if (mIsInitialized) {
-                mCallAudioManager.setCallAudioRouteFocusState(CallAudioRouteStateMachine.NO_FOCUS);
-                mAudioManager.setMode(AudioManager.MODE_NORMAL);
+                // Clear any communication device that was requested previously.
+                // Todo: Remove once clearCommunicationDeviceAfterAudioOpsComplete is
+                // completely rolled out.
+                if (mFeatureFlags.callAudioCommunicationDeviceRefactor()
+                        && !mFeatureFlags.clearCommunicationDeviceAfterAudioOpsComplete()) {
+                    mCommunicationDeviceTracker.clearCommunicationDevice(mCommunicationDeviceTracker
+                            .getCurrentLocallyRequestedCommunicationDevice());
+                }
+                if (mFeatureFlags.setAudioModeBeforeAbandonFocus()) {
+                    mAudioManager.setMode(AudioManager.MODE_NORMAL);
+                    mCallAudioManager.setCallAudioRouteFocusState(
+                            CallAudioRouteStateMachine.NO_FOCUS);
+                } else {
+                    mCallAudioManager.setCallAudioRouteFocusState(
+                            CallAudioRouteStateMachine.NO_FOCUS);
+                    mAudioManager.setMode(AudioManager.MODE_NORMAL);
+                }
                 mLocalLog.log("Mode MODE_NORMAL");
                 mMostRecentMode = AudioManager.MODE_NORMAL;
                 // Don't release focus here -- wait until we get a signal that any other audio
@@ -310,7 +348,20 @@
                     return HANDLED;
                 case AUDIO_OPERATIONS_COMPLETE:
                     Log.i(LOG_TAG, "Abandoning audio focus: now UNFOCUSED");
-                    mAudioManager.abandonAudioFocusForCall();
+                    if (mFeatureFlags.telecomResolveHiddenDependencies()) {
+                        if (mCurrentAudioFocusRequest != null) {
+                            mAudioManager.abandonAudioFocusRequest(mCurrentAudioFocusRequest);
+                            mCurrentAudioFocusRequest = null;
+                        }
+                    } else {
+                        mAudioManager.abandonAudioFocusForCall();
+                    }
+                    // Clear requested communication device after the call ends.
+                    if (mFeatureFlags.clearCommunicationDeviceAfterAudioOpsComplete()) {
+                        mCommunicationDeviceTracker.clearCommunicationDevice(
+                                mCommunicationDeviceTracker
+                                        .getCurrentLocallyRequestedCommunicationDevice());
+                    }
                     return HANDLED;
                 default:
                     // The forced focus switch commands are handled by BaseState.
@@ -381,7 +432,14 @@
                     return HANDLED;
                 case AUDIO_OPERATIONS_COMPLETE:
                     Log.i(LOG_TAG, "Abandoning audio focus: now AUDIO_PROCESSING");
-                    mAudioManager.abandonAudioFocusForCall();
+                    if (mFeatureFlags.telecomResolveHiddenDependencies()) {
+                        if (mCurrentAudioFocusRequest != null) {
+                            mAudioManager.abandonAudioFocusRequest(mCurrentAudioFocusRequest);
+                            mCurrentAudioFocusRequest = null;
+                        }
+                    } else {
+                        mAudioManager.abandonAudioFocusForCall();
+                    }
                     return HANDLED;
                 default:
                     // The forced focus switch commands are handled by BaseState.
@@ -406,8 +464,13 @@
                 }
 
                 if (mCallAudioManager.startRinging()) {
-                    mAudioManager.requestAudioFocusForCall(
-                        AudioManager.STREAM_RING, AudioManager.AUDIOFOCUS_GAIN_TRANSIENT);
+                    if (mFeatureFlags.telecomResolveHiddenDependencies()) {
+                        mCurrentAudioFocusRequest = RING_AUDIO_FOCUS_REQUEST;
+                        mAudioManager.requestAudioFocus(RING_AUDIO_FOCUS_REQUEST);
+                    } else {
+                        mAudioManager.requestAudioFocusForCall(
+                                AudioManager.STREAM_RING, AudioManager.AUDIOFOCUS_GAIN_TRANSIENT);
+                    }
                     // Do not set MODE_RINGTONE if we were previously in the CALL_SCREENING mode --
                     // this trips up the audio system.
                     if (mAudioManager.getMode() != AudioManager.MODE_CALL_SCREENING) {
@@ -504,8 +567,13 @@
         public void enter() {
             Log.i(LOG_TAG, "Audio focus entering SIM CALL state");
             mLocalLog.log("Enter SIM_CALL");
-            mAudioManager.requestAudioFocusForCall(AudioManager.STREAM_VOICE_CALL,
-                    AudioManager.AUDIOFOCUS_GAIN_TRANSIENT);
+            if (mFeatureFlags.telecomResolveHiddenDependencies()) {
+                mCurrentAudioFocusRequest = CALL_AUDIO_FOCUS_REQUEST;
+                mAudioManager.requestAudioFocus(CALL_AUDIO_FOCUS_REQUEST);
+            } else {
+                mAudioManager.requestAudioFocusForCall(AudioManager.STREAM_VOICE_CALL,
+                        AudioManager.AUDIOFOCUS_GAIN_TRANSIENT);
+            }
             mAudioManager.setMode(AudioManager.MODE_IN_CALL);
             mLocalLog.log("Mode MODE_IN_CALL");
             mMostRecentMode = AudioManager.MODE_IN_CALL;
@@ -587,8 +655,13 @@
         public void enter() {
             Log.i(LOG_TAG, "Audio focus entering VOIP CALL state");
             mLocalLog.log("Enter VOIP_CALL");
-            mAudioManager.requestAudioFocusForCall(AudioManager.STREAM_VOICE_CALL,
-                    AudioManager.AUDIOFOCUS_GAIN_TRANSIENT);
+            if (mFeatureFlags.telecomResolveHiddenDependencies()) {
+                mCurrentAudioFocusRequest = CALL_AUDIO_FOCUS_REQUEST;
+                mAudioManager.requestAudioFocus(CALL_AUDIO_FOCUS_REQUEST);
+            } else {
+                mAudioManager.requestAudioFocusForCall(AudioManager.STREAM_VOICE_CALL,
+                        AudioManager.AUDIOFOCUS_GAIN_TRANSIENT);
+            }
             mAudioManager.setMode(AudioManager.MODE_IN_COMMUNICATION);
             mLocalLog.log("Mode MODE_IN_COMMUNICATION");
             mMostRecentMode = AudioManager.MODE_IN_COMMUNICATION;
@@ -670,12 +743,12 @@
             mAudioManager.setMode(AudioManager.MODE_COMMUNICATION_REDIRECT);
             mMostRecentMode = AudioManager.MODE_NORMAL;
             mCallAudioManager.setCallAudioRouteFocusState(CallAudioRouteStateMachine.ACTIVE_FOCUS);
-            mCallAudioManager.getCallAudioRouteStateMachine().sendMessageWithSessionInfo(
+            mCallAudioManager.getCallAudioRouteAdapter().sendMessageWithSessionInfo(
                     CallAudioRouteStateMachine.STREAMING_FORCE_ENABLED);
         }
 
         private void preExit() {
-            mCallAudioManager.getCallAudioRouteStateMachine().sendMessageWithSessionInfo(
+            mCallAudioManager.getCallAudioRouteAdapter().sendMessageWithSessionInfo(
                     CallAudioRouteStateMachine.STREAMING_FORCE_DISABLED);
         }
 
@@ -742,8 +815,13 @@
         public void enter() {
             Log.i(LOG_TAG, "Audio focus entering TONE/HOLDING state");
             mLocalLog.log("Enter TONE/HOLDING");
-            mAudioManager.requestAudioFocusForCall(AudioManager.STREAM_VOICE_CALL,
-                    AudioManager.AUDIOFOCUS_GAIN_TRANSIENT);
+            if (mFeatureFlags.telecomResolveHiddenDependencies()) {
+                mCurrentAudioFocusRequest = CALL_AUDIO_FOCUS_REQUEST;
+                mAudioManager.requestAudioFocus(CALL_AUDIO_FOCUS_REQUEST);
+            } else {
+                mAudioManager.requestAudioFocusForCall(AudioManager.STREAM_VOICE_CALL,
+                        AudioManager.AUDIOFOCUS_GAIN_TRANSIENT);
+            }
             mAudioManager.setMode(mMostRecentMode);
             mLocalLog.log("Mode " + mMostRecentMode);
             mCallAudioManager.setCallAudioRouteFocusState(CallAudioRouteStateMachine.ACTIVE_FOCUS);
@@ -815,16 +893,21 @@
     private final AudioManager mAudioManager;
     private final SystemStateHelper mSystemStateHelper;
     private CallAudioManager mCallAudioManager;
+    private FeatureFlags mFeatureFlags;
+    private CallAudioCommunicationDeviceTracker mCommunicationDeviceTracker;
 
     private int mMostRecentMode;
     private boolean mIsInitialized = false;
 
     public CallAudioModeStateMachine(SystemStateHelper systemStateHelper,
-            AudioManager audioManager) {
+            AudioManager audioManager, FeatureFlags featureFlags,
+            CallAudioCommunicationDeviceTracker callAudioCommunicationDeviceTracker) {
         super(CallAudioModeStateMachine.class.getSimpleName());
         mAudioManager = audioManager;
         mSystemStateHelper = systemStateHelper;
         mMostRecentMode = AudioManager.MODE_NORMAL;
+        mFeatureFlags = featureFlags;
+        mCommunicationDeviceTracker = callAudioCommunicationDeviceTracker;
 
         createStates();
     }
@@ -833,11 +916,14 @@
      * Used for testing
      */
     public CallAudioModeStateMachine(SystemStateHelper systemStateHelper,
-            AudioManager audioManager, Looper looper) {
+            AudioManager audioManager, Looper looper, FeatureFlags featureFlags,
+            CallAudioCommunicationDeviceTracker communicationDeviceTracker) {
         super(CallAudioModeStateMachine.class.getSimpleName(), looper);
         mAudioManager = audioManager;
         mSystemStateHelper = systemStateHelper;
         mMostRecentMode = AudioManager.MODE_NORMAL;
+        mFeatureFlags = featureFlags;
+        mCommunicationDeviceTracker = communicationDeviceTracker;
 
         createStates();
     }
diff --git a/src/com/android/server/telecom/CallAudioRouteAdapter.java b/src/com/android/server/telecom/CallAudioRouteAdapter.java
new file mode 100644
index 0000000..7f7b43c
--- /dev/null
+++ b/src/com/android/server/telecom/CallAudioRouteAdapter.java
@@ -0,0 +1,19 @@
+package com.android.server.telecom;
+
+import android.os.Handler;
+import android.telecom.CallAudioState;
+
+import com.android.internal.util.IndentingPrintWriter;
+
+public interface CallAudioRouteAdapter {
+    void initialize();
+    void sendMessageWithSessionInfo(int message);
+    void sendMessageWithSessionInfo(int message, int arg);
+    void sendMessageWithSessionInfo(int message, int arg, String data);
+    void sendMessage(int message, Runnable r);
+    void setCallAudioManager(CallAudioManager callAudioManager);
+    CallAudioState getCurrentCallAudioState();
+    boolean isHfpDeviceAvailable();
+    Handler getAdapterHandler();
+    void dump(IndentingPrintWriter pw);
+}
diff --git a/src/com/android/server/telecom/CallAudioRouteController.java b/src/com/android/server/telecom/CallAudioRouteController.java
new file mode 100644
index 0000000..f8c49bb
--- /dev/null
+++ b/src/com/android/server/telecom/CallAudioRouteController.java
@@ -0,0 +1,64 @@
+package com.android.server.telecom;
+
+import android.os.Handler;
+import android.os.HandlerThread;
+import android.os.Looper;
+import android.telecom.CallAudioState;
+
+import com.android.internal.util.IndentingPrintWriter;
+
+public class CallAudioRouteController implements CallAudioRouteAdapter {
+    private Handler mHandler;
+
+    public CallAudioRouteController() {
+        HandlerThread handlerThread = new HandlerThread(this.getClass().getSimpleName());
+        handlerThread.start();
+        mHandler = new Handler(handlerThread.getLooper());
+    }
+    @Override
+    public void initialize() {
+    }
+
+    @Override
+    public void sendMessageWithSessionInfo(int message) {
+    }
+
+    @Override
+    public void sendMessageWithSessionInfo(int message, int arg) {
+
+    }
+
+    @Override
+    public void sendMessageWithSessionInfo(int message, int arg, String data) {
+
+    }
+
+    @Override
+    public void sendMessage(int message, Runnable r) {
+
+    }
+
+    @Override
+    public void setCallAudioManager(CallAudioManager callAudioManager) {
+    }
+
+    @Override
+    public CallAudioState getCurrentCallAudioState() {
+        return null;
+    }
+
+    @Override
+    public boolean isHfpDeviceAvailable() {
+        return false;
+    }
+
+    @Override
+    public Handler getAdapterHandler() {
+        return mHandler;
+    }
+
+    @Override
+    public void dump(IndentingPrintWriter pw) {
+
+    }
+}
diff --git a/src/com/android/server/telecom/CallAudioRoutePeripheralAdapter.java b/src/com/android/server/telecom/CallAudioRoutePeripheralAdapter.java
index d96f953..8a87c22 100644
--- a/src/com/android/server/telecom/CallAudioRoutePeripheralAdapter.java
+++ b/src/com/android/server/telecom/CallAudioRoutePeripheralAdapter.java
@@ -25,16 +25,19 @@
 public class CallAudioRoutePeripheralAdapter implements WiredHeadsetManager.Listener,
         DockManager.Listener, BluetoothRouteManager.BluetoothStateListener {
 
-    private final CallAudioRouteStateMachine mCallAudioRouteStateMachine;
+    private final CallAudioRouteAdapter mCallAudioAdapter;
     private final BluetoothRouteManager mBluetoothRouteManager;
+    private final AsyncRingtonePlayer mRingtonePlayer;
 
     public CallAudioRoutePeripheralAdapter(
-            CallAudioRouteStateMachine callAudioRouteStateMachine,
+            CallAudioRouteAdapter callAudioRouteAdapter,
             BluetoothRouteManager bluetoothManager,
             WiredHeadsetManager wiredHeadsetManager,
-            DockManager dockManager) {
-        mCallAudioRouteStateMachine = callAudioRouteStateMachine;
+            DockManager dockManager,
+            AsyncRingtonePlayer ringtonePlayer) {
+        mCallAudioAdapter = callAudioRouteAdapter;
         mBluetoothRouteManager = bluetoothManager;
+        mRingtonePlayer = ringtonePlayer;
 
         mBluetoothRouteManager.setListener(this);
         wiredHeadsetManager.addListener(this);
@@ -57,37 +60,47 @@
 
     @Override
     public void onBluetoothDeviceListChanged() {
-        mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+        mCallAudioAdapter.sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.BLUETOOTH_DEVICE_LIST_CHANGED);
     }
 
     @Override
     public void onBluetoothActiveDevicePresent() {
-        mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+        mCallAudioAdapter.sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.BT_ACTIVE_DEVICE_PRESENT);
     }
 
     @Override
     public void onBluetoothActiveDeviceGone() {
-        mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+        mCallAudioAdapter.sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.BT_ACTIVE_DEVICE_GONE);
     }
 
     @Override
     public void onBluetoothAudioConnected() {
-        mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+        mRingtonePlayer.updateBtActiveState(true);
+        mCallAudioAdapter.sendMessageWithSessionInfo(
+                CallAudioRouteStateMachine.BT_AUDIO_CONNECTED);
+    }
+
+    @Override
+    public void onBluetoothAudioConnecting() {
+        mRingtonePlayer.updateBtActiveState(false);
+        // Pretend like audio is connected when communicating w/ CARSM.
+        mCallAudioAdapter.sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.BT_AUDIO_CONNECTED);
     }
 
     @Override
     public void onBluetoothAudioDisconnected() {
-        mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+        mRingtonePlayer.updateBtActiveState(false);
+        mCallAudioAdapter.sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.BT_AUDIO_DISCONNECTED);
     }
 
     @Override
     public void onUnexpectedBluetoothStateChange() {
-        mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+        mCallAudioAdapter.sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.UPDATE_SYSTEM_AUDIO_ROUTE);
     }
 
@@ -98,17 +111,17 @@
     @Override
     public void onWiredHeadsetPluggedInChanged(boolean oldIsPluggedIn, boolean newIsPluggedIn) {
         if (!oldIsPluggedIn && newIsPluggedIn) {
-            mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+            mCallAudioAdapter.sendMessageWithSessionInfo(
                     CallAudioRouteStateMachine.CONNECT_WIRED_HEADSET);
         } else if (oldIsPluggedIn && !newIsPluggedIn){
-            mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+            mCallAudioAdapter.sendMessageWithSessionInfo(
                     CallAudioRouteStateMachine.DISCONNECT_WIRED_HEADSET);
         }
     }
 
     @Override
     public void onDockChanged(boolean isDocked) {
-        mCallAudioRouteStateMachine.sendMessageWithSessionInfo(
+        mCallAudioAdapter.sendMessageWithSessionInfo(
                 isDocked ? CallAudioRouteStateMachine.CONNECT_DOCK
                         : CallAudioRouteStateMachine.DISCONNECT_DOCK
         );
diff --git a/src/com/android/server/telecom/CallAudioRouteStateMachine.java b/src/com/android/server/telecom/CallAudioRouteStateMachine.java
index 4a03726..c0bb50e 100644
--- a/src/com/android/server/telecom/CallAudioRouteStateMachine.java
+++ b/src/com/android/server/telecom/CallAudioRouteStateMachine.java
@@ -28,6 +28,7 @@
 import android.media.AudioManager;
 import android.media.IAudioService;
 import android.os.Binder;
+import android.os.Handler;
 import android.os.Looper;
 import android.os.Message;
 import android.os.RemoteException;
@@ -44,6 +45,7 @@
 import com.android.internal.util.State;
 import com.android.internal.util.StateMachine;
 import com.android.server.telecom.bluetooth.BluetoothRouteManager;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import java.util.Collection;
 import java.util.HashMap;
@@ -72,7 +74,7 @@
  *     from a wired headset
  * mIsMuted: a boolean indicating whether the audio is muted
  */
-public class CallAudioRouteStateMachine extends StateMachine {
+public class CallAudioRouteStateMachine extends StateMachine implements CallAudioRouteAdapter {
 
     public static class Factory {
         public CallAudioRouteStateMachine create(
@@ -83,7 +85,9 @@
                 StatusBarNotifier statusBarNotifier,
                 CallAudioManager.AudioServiceFactory audioServiceFactory,
                 int earpieceControl,
-                Executor asyncTaskExecutor) {
+                Executor asyncTaskExecutor,
+                CallAudioCommunicationDeviceTracker communicationDeviceTracker,
+                FeatureFlags featureFlags) {
             return new CallAudioRouteStateMachine(context,
                     callsManager,
                     bluetoothManager,
@@ -91,7 +95,9 @@
                     statusBarNotifier,
                     audioServiceFactory,
                     earpieceControl,
-                    asyncTaskExecutor);
+                    asyncTaskExecutor,
+                    communicationDeviceTracker,
+                    featureFlags);
         }
     }
     /** Values for CallAudioRouteStateMachine constructor's earPieceRouting arg. */
@@ -371,6 +377,10 @@
         public void enter() {
             super.enter();
             setSpeakerphoneOn(false);
+            if (mFeatureFlags.callAudioCommunicationDeviceRefactor()) {
+                mCommunicationDeviceTracker.setCommunicationDevice(
+                        AudioDeviceInfo.TYPE_BUILTIN_EARPIECE, null);
+            }
             CallAudioState newState = new CallAudioState(mIsMuted, ROUTE_EARPIECE,
                     mAvailableRoutes, null,
                     mBluetoothRouteManager.getConnectedDevices());
@@ -401,6 +411,10 @@
                 case SWITCH_BLUETOOTH:
                 case USER_SWITCH_BLUETOOTH:
                     if ((mAvailableRoutes & ROUTE_BLUETOOTH) != 0) {
+                        if (mFeatureFlags.callAudioCommunicationDeviceRefactor()) {
+                            mCommunicationDeviceTracker.clearCommunicationDevice(
+                                    AudioDeviceInfo.TYPE_BUILTIN_EARPIECE);
+                        }
                         if (mAudioFocusType == ACTIVE_FOCUS
                                 || mBluetoothRouteManager.isInbandRingingEnabled()) {
                             String address = (msg.obj instanceof SomeArgs) ?
@@ -417,6 +431,10 @@
                 case SWITCH_HEADSET:
                 case USER_SWITCH_HEADSET:
                     if ((mAvailableRoutes & ROUTE_WIRED_HEADSET) != 0) {
+                        if (mFeatureFlags.callAudioCommunicationDeviceRefactor()) {
+                            mCommunicationDeviceTracker.clearCommunicationDevice(
+                                    AudioDeviceInfo.TYPE_BUILTIN_EARPIECE);
+                        }
                         transitionTo(mActiveHeadsetRoute);
                     } else {
                         Log.w(this, "Ignoring switch to headset command. Not available.");
@@ -426,6 +444,10 @@
                     // fall through; we want to switch to speaker mode when docked and in a call.
                 case SWITCH_SPEAKER:
                 case USER_SWITCH_SPEAKER:
+                    if (mFeatureFlags.callAudioCommunicationDeviceRefactor()) {
+                        mCommunicationDeviceTracker.clearCommunicationDevice(
+                                AudioDeviceInfo.TYPE_BUILTIN_EARPIECE);
+                    }
                     setSpeakerphoneOn(true);
                     // fall through
                 case SPEAKER_ON:
@@ -579,6 +601,10 @@
         public void enter() {
             super.enter();
             setSpeakerphoneOn(false);
+            if (mFeatureFlags.callAudioCommunicationDeviceRefactor()) {
+                mCommunicationDeviceTracker.setCommunicationDevice(
+                        AudioDeviceInfo.TYPE_WIRED_HEADSET, null);
+            }
             CallAudioState newState = new CallAudioState(mIsMuted, ROUTE_WIRED_HEADSET,
                     mAvailableRoutes, null, mBluetoothRouteManager.getConnectedDevices());
             setSystemAudioState(newState, true);
@@ -600,6 +626,10 @@
                 case SWITCH_EARPIECE:
                 case USER_SWITCH_EARPIECE:
                     if ((mAvailableRoutes & ROUTE_EARPIECE) != 0) {
+                        if (mFeatureFlags.callAudioCommunicationDeviceRefactor()) {
+                            mCommunicationDeviceTracker.clearCommunicationDevice(
+                                    AudioDeviceInfo.TYPE_WIRED_HEADSET);
+                        }
                         transitionTo(mActiveEarpieceRoute);
                     } else {
                         Log.w(this, "Ignoring switch to earpiece command. Not available.");
@@ -615,6 +645,10 @@
                                 || mBluetoothRouteManager.isInbandRingingEnabled()) {
                             String address = (msg.obj instanceof SomeArgs) ?
                                     (String) ((SomeArgs) msg.obj).arg2 : null;
+                            if (mFeatureFlags.callAudioCommunicationDeviceRefactor()) {
+                                mCommunicationDeviceTracker.clearCommunicationDevice(
+                                        AudioDeviceInfo.TYPE_WIRED_HEADSET);
+                            }
                             // Omit transition to ActiveBluetoothRoute until actual connection.
                             setBluetoothOn(address);
                         } else {
@@ -631,6 +665,10 @@
                     return HANDLED;
                 case SWITCH_SPEAKER:
                 case USER_SWITCH_SPEAKER:
+                    if (mFeatureFlags.callAudioCommunicationDeviceRefactor()) {
+                        mCommunicationDeviceTracker.clearCommunicationDevice(
+                                AudioDeviceInfo.TYPE_WIRED_HEADSET);
+                    }
                     setSpeakerphoneOn(true);
                     // fall through
                 case SPEAKER_ON:
@@ -793,6 +831,17 @@
         public void enter() {
             super.enter();
             setSpeakerphoneOn(false);
+            // Try arbitrarily connecting to BT audio if we haven't already. This handles
+            // the edge case of when the audio route is in a quiescent route while in-call and
+            // the BT connection fails to be set. Previously, the logic was to setBluetoothOn in
+            // ACTIVE_FOCUS but the route would still remain in a quiescent route, so instead we
+            // should be transitioning directly into the active route.
+            if (mFeatureFlags.callAudioCommunicationDeviceRefactor()) {
+                setBluetoothOn(null);
+            }
+            if (mFeatureFlags.updateRouteMaskWhenBtConnected()) {
+                mAvailableRoutes |= ROUTE_BLUETOOTH;
+            }
             CallAudioState newState = new CallAudioState(mIsMuted, ROUTE_BLUETOOTH,
                     mAvailableRoutes, mBluetoothRouteManager.getBluetoothAudioConnectedDevice(),
                     mBluetoothRouteManager.getConnectedDevices());
@@ -893,8 +942,13 @@
                 case SWITCH_FOCUS:
                     if (msg.arg1 == NO_FOCUS) {
                         // Only disconnect audio here instead of routing away from BT entirely.
-                        mBluetoothRouteManager.disconnectAudio();
-                        reinitialize();
+                        if (mFeatureFlags.transitRouteBeforeAudioDisconnectBt()) {
+                            transitionTo(mQuiescentBluetoothRoute);
+                            mBluetoothRouteManager.disconnectAudio();
+                        } else {
+                            mBluetoothRouteManager.disconnectAudio();
+                            reinitialize();
+                        }
                         mCallAudioManager.notifyAudioOperationsComplete();
                     } else if (msg.arg1 == RINGING_FOCUS
                             && !mBluetoothRouteManager.isInbandRingingEnabled()) {
@@ -1019,6 +1073,9 @@
         public void enter() {
             super.enter();
             mHasUserExplicitlyLeftBluetooth = false;
+            if (mFeatureFlags.resetMuteWhenEnteringQuiescentBtRoute()) {
+                setMuteOn(false);
+            }
             updateInternalCallAudioState();
         }
 
@@ -1065,7 +1122,13 @@
                     return HANDLED;
                 case SWITCH_FOCUS:
                     if (msg.arg1 == ACTIVE_FOCUS) {
-                        setBluetoothOn(null);
+                        // It is possible that the connection to BT will fail while in-call, in
+                        // which case, we want to transition into the active route.
+                        if (mFeatureFlags.callAudioCommunicationDeviceRefactor()) {
+                            transitionTo(mActiveBluetoothRoute);
+                        } else {
+                            setBluetoothOn(null);
+                        }
                     } else if (msg.arg1 == RINGING_FOCUS) {
                         if (mBluetoothRouteManager.isInbandRingingEnabled()) {
                             setBluetoothOn(null);
@@ -1215,7 +1278,13 @@
                     // Expected, since we just transitioned here
                     return HANDLED;
                 case SPEAKER_OFF:
-                    sendInternalMessage(SWITCH_BASELINE_ROUTE, INCLUDE_BLUETOOTH_IN_BASELINE);
+                    // Check if we already requested to connect to other devices and just waiting
+                    // for their response. In some cases, this SPEAKER_OFF message may come in
+                    // before the response, we can just ignore the message here to not re-evaluate
+                    // the baseline route incorrectly
+                    if (!mBluetoothRouteManager.isBluetoothAudioConnectedOrPending()) {
+                        sendInternalMessage(SWITCH_BASELINE_ROUTE, INCLUDE_BLUETOOTH_IN_BASELINE);
+                    }
                     return HANDLED;
                 case SWITCH_FOCUS:
                     if (msg.arg1 == NO_FOCUS) {
@@ -1514,6 +1583,8 @@
     private CallAudioState mLastKnownCallAudioState;
 
     private CallAudioManager mCallAudioManager;
+    private CallAudioCommunicationDeviceTracker mCommunicationDeviceTracker;
+    private FeatureFlags mFeatureFlags;
 
     public CallAudioRouteStateMachine(
             Context context,
@@ -1523,7 +1594,9 @@
             StatusBarNotifier statusBarNotifier,
             CallAudioManager.AudioServiceFactory audioServiceFactory,
             int earpieceControl,
-            Executor asyncTaskExecutor) {
+            Executor asyncTaskExecutor,
+            CallAudioCommunicationDeviceTracker communicationDeviceTracker,
+            FeatureFlags featureFlags) {
         super(NAME);
         mContext = context;
         mCallsManager = callsManager;
@@ -1534,6 +1607,8 @@
         mAudioServiceFactory = audioServiceFactory;
         mLock = callsManager.getLock();
         mAsyncTaskExecutor = asyncTaskExecutor;
+        mCommunicationDeviceTracker = communicationDeviceTracker;
+        mFeatureFlags = featureFlags;
         createStates(earpieceControl);
     }
 
@@ -1545,7 +1620,9 @@
             WiredHeadsetManager wiredHeadsetManager,
             StatusBarNotifier statusBarNotifier,
             CallAudioManager.AudioServiceFactory audioServiceFactory,
-            int earpieceControl, Looper looper, Executor asyncTaskExecutor) {
+            int earpieceControl, Looper looper, Executor asyncTaskExecutor,
+            CallAudioCommunicationDeviceTracker communicationDeviceTracker,
+            FeatureFlags featureFlags) {
         super(NAME, looper);
         mContext = context;
         mCallsManager = callsManager;
@@ -1556,7 +1633,8 @@
         mAudioServiceFactory = audioServiceFactory;
         mLock = callsManager.getLock();
         mAsyncTaskExecutor = asyncTaskExecutor;
-
+        mCommunicationDeviceTracker = communicationDeviceTracker;
+        mFeatureFlags = featureFlags;
         createStates(earpieceControl);
     }
 
@@ -1673,6 +1751,11 @@
         sendMessage(message, arg, 0, args);
     }
 
+    @Override
+    public void sendMessage(int message, Runnable r) {
+        super.sendMessage(message, r);
+    }
+
     /**
      * This is for state-independent changes in audio route (i.e. muting or runnables)
      * @param msg that couldn't be handled.
@@ -1702,9 +1785,19 @@
                 }
                 return;
             case UPDATE_SYSTEM_AUDIO_ROUTE:
-                updateInternalCallAudioState();
-                updateRouteForForegroundCall();
-                resendSystemAudioState();
+                if (mFeatureFlags.availableRoutesNeverUpdatedAfterSetSystemAudioState()) {
+                    // Ensure available routes is updated.
+                    updateRouteForForegroundCall();
+                    // Ensure current audio state gets updated to take this into account.
+                    updateInternalCallAudioState();
+                    // Either resend the current audio state as it stands, or update to reflect any
+                    // changes put into place based on mAvailableRoutes
+                    setSystemAudioState(mCurrentCallAudioState, true);
+                } else {
+                    updateInternalCallAudioState();
+                    updateRouteForForegroundCall();
+                    resendSystemAudioState();
+                }
                 return;
             case RUN_RUNNABLE:
                 java.lang.Runnable r = (java.lang.Runnable) msg.obj;
@@ -1729,7 +1822,7 @@
     }
 
     public void dumpPendingMessages(IndentingPrintWriter pw) {
-        getHandler().getLooper().dump(pw::println, "");
+        getAdapterHandler().getLooper().dump(pw::println, "");
     }
 
     public boolean isHfpDeviceAvailable() {
@@ -1741,31 +1834,19 @@
         final boolean hasAnyCalls = mCallsManager.hasAnyCalls();
         // These APIs are all via two-way binder calls so can potentially block Telecom.  Since none
         // of this has to happen in the Telecom lock we'll offload it to the async executor.
-
-        AudioDeviceInfo speakerDevice = null;
-        for (AudioDeviceInfo info : mAudioManager.getAvailableCommunicationDevices()) {
-            if (info.getType() == AudioDeviceInfo.TYPE_BUILTIN_SPEAKER) {
-                speakerDevice = info;
-                break;
-            }
-        }
         boolean speakerOn = false;
-        if (speakerDevice != null && on) {
-            boolean result = mAudioManager.setCommunicationDevice(speakerDevice);
-            if (result) {
-                speakerOn = true;
+        if (mFeatureFlags.callAudioCommunicationDeviceRefactor()) {
+            if (on) {
+                speakerOn = mCommunicationDeviceTracker.setCommunicationDevice(
+                        AudioDeviceInfo.TYPE_BUILTIN_SPEAKER, null);
+            } else {
+                mCommunicationDeviceTracker.clearCommunicationDevice(
+                        AudioDeviceInfo.TYPE_BUILTIN_SPEAKER);
             }
         } else {
-            AudioDeviceInfo curDevice = mAudioManager.getCommunicationDevice();
-            if (curDevice != null
-                    && curDevice.getType() == AudioDeviceInfo.TYPE_BUILTIN_SPEAKER) {
-                mAudioManager.clearCommunicationDevice();
-            }
+            speakerOn = processLegacySpeakerCommunicationDevice(on);
         }
-        final boolean isSpeakerOn = speakerOn;
-        mAsyncTaskExecutor.execute(() -> {
-            mStatusBarNotifier.notifySpeakerphone(hasAnyCalls && isSpeakerOn);
-        });
+        mStatusBarNotifier.notifySpeakerphone(hasAnyCalls && speakerOn);
     }
 
     private void setBluetoothOn(String address) {
@@ -1863,6 +1944,11 @@
         setSystemAudioState(mLastKnownCallAudioState, true);
     }
 
+    @VisibleForTesting
+    public CallAudioState getLastKnownCallAudioState() {
+        return mLastKnownCallAudioState;
+    }
+
     private void setSystemAudioState(CallAudioState newCallAudioState, boolean force) {
         synchronized (mLock) {
             Log.i(this, "setSystemAudioState: changing from %s to %s", mLastKnownCallAudioState,
@@ -1980,6 +2066,58 @@
         return false;
     }
 
+    private boolean isWatchActiveOrOnlyWatchesAvailable() {
+        if (!mFeatureFlags.ignoreAutoRouteToWatchDevice()) {
+            Log.i(this, "isWatchActiveOrOnlyWatchesAvailable: Flag is disabled.");
+            return false;
+        }
+
+        boolean containsWatchDevice = false;
+        boolean containsNonWatchDevice = false;
+        Collection<BluetoothDevice> connectedBtDevices =
+                mBluetoothRouteManager.getConnectedDevices();
+
+        for (BluetoothDevice connectedDevice: connectedBtDevices) {
+            if (mBluetoothRouteManager.isWatch(connectedDevice)) {
+                containsWatchDevice = true;
+            } else {
+                containsNonWatchDevice = true;
+            }
+        }
+
+        // Don't ignore switch if watch is already the active device.
+        boolean isActiveDeviceWatch = mBluetoothRouteManager.isWatch(
+                mBluetoothRouteManager.getBluetoothAudioConnectedDevice());
+        Log.i(this, "isWatchActiveOrOnlyWatchesAvailable: contains watch: %s, contains "
+                + "non-wearable device: %s, is active device a watch: %s.",
+                containsWatchDevice, containsNonWatchDevice, isActiveDeviceWatch);
+        return containsWatchDevice && !containsNonWatchDevice && !isActiveDeviceWatch;
+    }
+
+    private boolean processLegacySpeakerCommunicationDevice(boolean on) {
+        AudioDeviceInfo speakerDevice = null;
+        for (AudioDeviceInfo info : mAudioManager.getAvailableCommunicationDevices()) {
+            if (info.getType() == AudioDeviceInfo.TYPE_BUILTIN_SPEAKER) {
+                speakerDevice = info;
+                break;
+            }
+        }
+        boolean speakerOn = false;
+        if (speakerDevice != null && on) {
+            boolean result = mAudioManager.setCommunicationDevice(speakerDevice);
+            if (result) {
+                speakerOn = true;
+            }
+        } else {
+            AudioDeviceInfo curDevice = mAudioManager.getCommunicationDevice();
+            if (curDevice != null
+                    && curDevice.getType() == AudioDeviceInfo.TYPE_BUILTIN_SPEAKER) {
+                mAudioManager.clearCommunicationDevice();
+            }
+        }
+        return speakerOn;
+    }
+
     private int calculateBaselineRouteMessage(boolean isExplicitUserRequest,
             boolean includeBluetooth) {
         boolean isSkipEarpiece = false;
@@ -1992,7 +2130,7 @@
         }
         if ((mAvailableRoutes & ROUTE_BLUETOOTH) != 0
                 && !mHasUserExplicitlyLeftBluetooth
-                && includeBluetooth) {
+                && includeBluetooth && !isWatchActiveOrOnlyWatchesAvailable()) {
             return isExplicitUserRequest ? USER_SWITCH_BLUETOOTH : SWITCH_BLUETOOTH;
         } else if ((mAvailableRoutes & ROUTE_EARPIECE) != 0 && !isSkipEarpiece) {
             return isExplicitUserRequest ? USER_SWITCH_EARPIECE : SWITCH_EARPIECE;
@@ -2048,4 +2186,8 @@
 
         return base;
     }
+
+    public Handler getAdapterHandler() {
+        return getHandler();
+    }
 }
diff --git a/src/com/android/server/telecom/CallDiagnosticServiceController.java b/src/com/android/server/telecom/CallDiagnosticServiceController.java
index 6c7ee38..1077f0d 100644
--- a/src/com/android/server/telecom/CallDiagnosticServiceController.java
+++ b/src/com/android/server/telecom/CallDiagnosticServiceController.java
@@ -522,7 +522,7 @@
                 callId, messageId, message);
         if (mPlayerFactory != null) {
             // Play that tone!
-            mPlayerFactory.createPlayer(InCallTonePlayer.TONE_IN_CALL_QUALITY_NOTIFICATION)
+            mPlayerFactory.createPlayer(call, InCallTonePlayer.TONE_IN_CALL_QUALITY_NOTIFICATION)
                     .startTone();
         }
         call.displayDiagnosticMessage(messageId, message);
diff --git a/src/com/android/server/telecom/CallEndpointController.java b/src/com/android/server/telecom/CallEndpointController.java
index 7e11b47..4738cd4 100644
--- a/src/com/android/server/telecom/CallEndpointController.java
+++ b/src/com/android/server/telecom/CallEndpointController.java
@@ -87,7 +87,7 @@
     }
 
     public void requestCallEndpointChange(CallEndpoint endpoint, ResultReceiver callback) {
-        Log.d(this, "requestCallEndpointChange %s", endpoint);
+        Log.i(this, "requestCallEndpointChange %s", endpoint);
         int route = mTypeToRouteMap.get(endpoint.getEndpointType());
         String bluetoothAddress = getBluetoothAddress(endpoint);
 
@@ -99,7 +99,6 @@
         }
 
         if (isCurrentEndpointRequestedEndpoint(route, bluetoothAddress)) {
-            Log.d(this, "requestCallEndpointChange: requested endpoint is already active");
             callback.send(CallEndpoint.ENDPOINT_OPERATION_SUCCESS, new Bundle());
             return;
         }
@@ -130,21 +129,27 @@
             return false;
         }
         CallAudioState currentAudioState = mCallsManager.getCallAudioManager().getCallAudioState();
-        // requested non-bt endpoint is already active
-        if (requestedRoute != CallAudioState.ROUTE_BLUETOOTH &&
-                requestedRoute == currentAudioState.getRoute()) {
-            return true;
-        }
-        // requested bt endpoint is already active
-        if (requestedRoute == CallAudioState.ROUTE_BLUETOOTH &&
-                currentAudioState.getActiveBluetoothDevice() != null &&
-                requestedAddress.equals(
-                        currentAudioState.getActiveBluetoothDevice().getAddress())) {
-            return true;
+        if (requestedRoute == currentAudioState.getRoute()) {
+            if (requestedRoute != CallAudioState.ROUTE_BLUETOOTH) {
+                // The audio route (earpiece, speaker, etc.) is already active
+                // and Telecom can ignore the spam request!
+                Log.i(this, "iCERE: user requested a non-BT route that is already active");
+                return true;
+            } else if (hasSameBluetoothAddress(currentAudioState, requestedAddress)) {
+                // if the requested (BT route, device) is active, ignore the request...
+                Log.i(this, "iCERE: user requested a BT endpoint that is already active");
+                return true;
+            }
         }
         return false;
     }
 
+    public boolean hasSameBluetoothAddress(CallAudioState audioState, String requestedAddress) {
+        boolean hasActiveBtDevice = audioState.getActiveBluetoothDevice() != null;
+        return hasActiveBtDevice && requestedAddress.equals(
+                audioState.getActiveBluetoothDevice().getAddress());
+    }
+
     private Bundle getErrorResult(int result) {
         String message;
         int resultCode;
diff --git a/src/com/android/server/telecom/CallIntentProcessor.java b/src/com/android/server/telecom/CallIntentProcessor.java
index 7953324..062c872 100644
--- a/src/com/android/server/telecom/CallIntentProcessor.java
+++ b/src/com/android/server/telecom/CallIntentProcessor.java
@@ -1,6 +1,7 @@
 package com.android.server.telecom;
 
 import com.android.server.telecom.components.ErrorDialogActivity;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import android.content.Context;
 import android.content.Intent;
@@ -32,7 +33,7 @@
 public class CallIntentProcessor {
     public interface Adapter {
         void processOutgoingCallIntent(Context context, CallsManager callsManager,
-                Intent intent, String callingPackage);
+                Intent intent, String callingPackage, FeatureFlags featureFlags);
         void processIncomingCallIntent(CallsManager callsManager, Intent intent);
         void processUnknownCallIntent(CallsManager callsManager, Intent intent);
     }
@@ -45,9 +46,9 @@
 
         @Override
         public void processOutgoingCallIntent(Context context, CallsManager callsManager,
-                Intent intent, String callingPackage) {
+                Intent intent, String callingPackage, FeatureFlags featureFlags) {
             CallIntentProcessor.processOutgoingCallIntent(context, callsManager, intent,
-                    callingPackage, mDefaultDialerCache);
+                    callingPackage, mDefaultDialerCache, featureFlags);
         }
 
         @Override
@@ -73,12 +74,14 @@
     private final Context mContext;
     private final CallsManager mCallsManager;
     private final DefaultDialerCache mDefaultDialerCache;
+    private final FeatureFlags mFeatureFlags;
 
     public CallIntentProcessor(Context context, CallsManager callsManager,
-            DefaultDialerCache defaultDialerCache) {
+            DefaultDialerCache defaultDialerCache, FeatureFlags featureFlags) {
         this.mContext = context;
         this.mCallsManager = callsManager;
         this.mDefaultDialerCache = defaultDialerCache;
+        this.mFeatureFlags = featureFlags;
     }
 
     public void processIntent(Intent intent, String callingPackage) {
@@ -90,7 +93,7 @@
             processUnknownCallIntent(mCallsManager, intent);
         } else {
             processOutgoingCallIntent(mContext, mCallsManager, intent, callingPackage,
-                    mDefaultDialerCache);
+                    mDefaultDialerCache, mFeatureFlags);
         }
         Trace.endSection();
     }
@@ -107,7 +110,8 @@
             CallsManager callsManager,
             Intent intent,
             String callingPackage,
-            DefaultDialerCache defaultDialerCache) {
+            DefaultDialerCache defaultDialerCache,
+            FeatureFlags featureFlags) {
 
         Uri handle = intent.getData();
         String scheme = handle.getScheme();
@@ -182,10 +186,9 @@
         boolean isPrivilegedDialer = defaultDialerCache.isDefaultOrSystemDialer(callingPackage,
                 initiatingUser.getIdentifier());
 
-
         NewOutgoingCallIntentBroadcaster broadcaster = new NewOutgoingCallIntentBroadcaster(
                 context, callsManager, intent, callsManager.getPhoneNumberUtilsAdapter(),
-                isPrivilegedDialer, defaultDialerCache, new MmiUtils());
+                isPrivilegedDialer, defaultDialerCache, new MmiUtils(), featureFlags);
 
         // If the broadcaster comes back with an immediate error, disconnect and show a dialog.
         NewOutgoingCallIntentBroadcaster.CallDisposition disposition = broadcaster.evaluateCall();
diff --git a/src/com/android/server/telecom/CallLogManager.java b/src/com/android/server/telecom/CallLogManager.java
index 3005656..6a9977d 100644
--- a/src/com/android/server/telecom/CallLogManager.java
+++ b/src/com/android/server/telecom/CallLogManager.java
@@ -19,17 +19,24 @@
 import static android.provider.CallLog.Calls.BLOCK_REASON_NOT_BLOCKED;
 import static android.telephony.CarrierConfigManager.KEY_SUPPORT_IMS_CONFERENCE_EVENT_PACKAGE_BOOL;
 
+import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.content.ContentResolver;
 import android.content.Context;
 import android.content.Intent;
+import android.content.pm.PackageManager;
+import android.database.Cursor;
 import android.location.Country;
 import android.location.CountryDetector;
 import android.location.Location;
 import android.net.Uri;
 import android.os.AsyncTask;
+import android.os.Handler;
+import android.os.HandlerExecutor;
 import android.os.Looper;
 import android.os.UserHandle;
 import android.os.PersistableBundle;
+import android.os.UserManager;
 import android.provider.CallLog;
 import android.provider.CallLog.Calls;
 import android.telecom.Connection;
@@ -42,13 +49,18 @@
 import android.telephony.CarrierConfigManager;
 import android.telephony.PhoneNumberUtils;
 import android.telephony.SubscriptionManager;
+import android.util.Pair;
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.server.telecom.callfiltering.CallFilteringResult;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import java.util.Arrays;
 import java.util.Locale;
 import java.util.Objects;
+import java.util.UUID;
+import java.util.concurrent.Executor;
+import java.util.concurrent.Executors;
 import java.util.stream.Stream;
 
 /**
@@ -68,16 +80,19 @@
      */
     private static class AddCallArgs {
         public AddCallArgs(Context context, CallLog.AddCallParams params,
-                @Nullable LogCallCompletedListener logCallCompletedListener) {
+                @Nullable LogCallCompletedListener logCallCompletedListener,
+                @NonNull Call call) {
             this.context = context;
             this.params = params;
             this.logCallCompletedListener = logCallCompletedListener;
+            this.call = call;
 
         }
         // Since the members are accessed directly, we don't use the
         // mXxxx notation.
         public final Context context;
         public final CallLog.AddCallParams params;
+        public final Call call;
         @Nullable
         public final LogCallCompletedListener logCallCompletedListener;
     }
@@ -88,29 +103,41 @@
     // TODO: come up with a better way to indicate in a android.telecom.DisconnectCause that
     // a conference was merged successfully
     private static final String REASON_IMS_MERGED_SUCCESSFULLY = "IMS_MERGED_SUCCESSFULLY";
+    private static final UUID LOG_CALL_FAILED_ANOMALY_ID =
+            UUID.fromString("d9b38771-ff36-417b-8723-2363a870c702");
+    private static final String LOG_CALL_FAILED_ANOMALY_DESC =
+            "Based on the current user, Telecom detected failure to record a call to the call log.";
 
     private final Context mContext;
     private final CarrierConfigManager mCarrierConfigManager;
     private final PhoneAccountRegistrar mPhoneAccountRegistrar;
     private final MissedCallNotifier mMissedCallNotifier;
+    private AnomalyReporterAdapter mAnomalyReporterAdapter;
     private static final String ACTION_CALLS_TABLE_ADD_ENTRY =
-                "com.android.server.telecom.intent.action.CALLS_ADD_ENTRY";
+            "com.android.server.telecom.intent.action.CALLS_ADD_ENTRY";
     private static final String PERMISSION_PROCESS_CALLLOG_INFO =
-                "android.permission.PROCESS_CALLLOG_INFO";
+            "android.permission.PROCESS_CALLLOG_INFO";
     private static final String CALL_TYPE = "callType";
     private static final String CALL_DURATION = "duration";
 
-    private Object mLock;
+    private final Object mLock = new Object();
+    private Country mCurrentCountry;
     private String mCurrentCountryIso;
+    private HandlerExecutor mCountryCodeExecutor;
+
+    private final FeatureFlags mFeatureFlags;
 
     public CallLogManager(Context context, PhoneAccountRegistrar phoneAccountRegistrar,
-            MissedCallNotifier missedCallNotifier) {
+            MissedCallNotifier missedCallNotifier, AnomalyReporterAdapter anomalyReporterAdapter,
+            FeatureFlags featureFlags) {
         mContext = context;
         mCarrierConfigManager = (CarrierConfigManager) mContext
                 .getSystemService(Context.CARRIER_CONFIG_SERVICE);
         mPhoneAccountRegistrar = phoneAccountRegistrar;
         mMissedCallNotifier = missedCallNotifier;
-        mLock = new Object();
+        mAnomalyReporterAdapter = anomalyReporterAdapter;
+        mCountryCodeExecutor = new HandlerExecutor(new Handler(Looper.getMainLooper()));
+        mFeatureFlags = featureFlags;
     }
 
     @Override
@@ -149,9 +176,10 @@
      * Call was NOT in the "choose account" phase when disconnected
      * Call is NOT a conference call which had children (unless it was remotely hosted).
      * Call is NOT a child call from a conference which was remotely hosted.
+     * Call has NOT indicated it should be skipped for logging in its extras
      * Call is NOT simulating a single party conference.
      * Call was NOT explicitly canceled, except for disconnecting from a conference.
-     * Call is NOT an external call
+     * Call is NOT an external call or an external call on watch.
      * Call is NOT disconnected because of merging into a conference.
      * Call is NOT a self-managed call OR call is a self-managed call which has indicated it
      * should be logged in its PhoneAccount
@@ -180,6 +208,11 @@
             return false;
         }
 
+        if (mFeatureFlags.telecomSkipLogBasedOnExtra() && call.getExtras() != null
+                && call.getExtras().containsKey(TelecomManager.EXTRA_DO_NOT_LOG_CALL)) {
+            return false;
+        }
+
         // A child call of a conference which was remotely hosted; these didn't originate on this
         // device and should not be logged.
         if (call.getParentCall() != null && call.hasProperty(Connection.PROPERTY_REMOTELY_HOSTED)) {
@@ -200,8 +233,10 @@
                     & Connection.CAPABILITY_DISCONNECT_FROM_CONFERENCE)
                     == Connection.CAPABILITY_DISCONNECT_FROM_CONFERENCE;
         }
-        // An external call
-        if (call.isExternalCall()) {
+        // An external and non-watch call
+        if (call.isExternalCall() && (!mContext.getPackageManager().hasSystemFeature(
+                PackageManager.FEATURE_WATCH)
+                || !mFeatureFlags.telecomLogExternalWearableCalls())) {
             return false;
         }
 
@@ -240,8 +275,13 @@
             logCall(call, type, new LogCallCompletedListener() {
                 @Override
                 public void onLogCompleted(@Nullable Uri uri) {
-                    mMissedCallNotifier.showMissedCallNotification(
-                            new MissedCallNotifier.CallInfo(call));
+                    if (mFeatureFlags.addCallUriForMissedCalls()){
+                        mMissedCallNotifier.showMissedCallNotification(
+                                new MissedCallNotifier.CallInfo(call), uri);
+                    } else {
+                        mMissedCallNotifier.showMissedCallNotification(
+                                new MissedCallNotifier.CallInfo(call), /* uri= */ null);
+                    }
                 }
             }, result);
         } else {
@@ -263,7 +303,7 @@
      *     {@link android.provider.CallLog.Calls#BLOCKED_TYPE}.
      */
     void logCall(Call call, int callLogType,
-        @Nullable LogCallCompletedListener logCallCompletedListener, CallFilteringResult result) {
+            @Nullable LogCallCompletedListener logCallCompletedListener, CallFilteringResult result) {
 
         CallLog.AddCallParams.AddCallParametersBuilder paramBuilder =
                 new CallLog.AddCallParams.AddCallParametersBuilder();
@@ -385,7 +425,7 @@
                 okayToLogCall(accountHandle, logNumber, call.isEmergencyCall());
         if (okayToLog) {
             AddCallArgs args = new AddCallArgs(mContext, paramBuilder.build(),
-                    logCallCompletedListener);
+                    logCallCompletedListener, call);
             Log.addEvent(call, LogUtils.Events.LOG_CALL, "number=" + Log.piiHandle(logNumber)
                     + ",postDial=" + Log.piiHandle(call.getPostDialDigits()) + ",pres="
                     + call.getHandlePresentation());
@@ -516,8 +556,25 @@
                 AddCallArgs c = callList[i];
                 mListeners[i] = c.logCallCompletedListener;
                 try {
-                    // May block.
+                    Pair<Integer, Integer> startStats = getCallLogStats(c.call);
+                    Log.i(TAG, "LogCall; about to log callId=%s, "
+                                    + "startCount=%d, startMaxId=%d",
+                            c.call.getId(), startStats.first, startStats.second);
+
                     result[i] = Calls.addCall(c.context, c.params);
+                    Pair<Integer, Integer> endStats = getCallLogStats(c.call);
+                    Log.i(TAG, "LogCall; logged callId=%s, uri=%s, "
+                                    + "endCount=%d, endMaxId=%s",
+                            c.call.getId(), result, endStats.first, endStats.second);
+                    if ((endStats.second - startStats.second) <= 0) {
+                        // No call was added or even worse we lost a call in the log.  Trigger an
+                        // anomaly report.  Note: it technically possible that an app modified the
+                        // call log while we were writing to it here; that is pretty unlikely, and
+                        // the goal here is to try and identify potential anomalous conditions with
+                        // logging calls.
+                        mAnomalyReporterAdapter.reportAnomaly(LOG_CALL_FAILED_ANOMALY_ID,
+                                LOG_CALL_FAILED_ANOMALY_DESC);
+                    }
                 } catch (Exception e) {
                     // This is very rare but may happen in legitimate cases.
                     // E.g. If the phone is encrypted and thus write request fails, it may cause
@@ -526,8 +583,10 @@
                     //
                     // We don't want to crash the whole process just because of that, so just log
                     // it instead.
-                    Log.e(TAG, e, "Exception raised during adding CallLog entry.");
+                    Log.e(TAG, e, "LogCall: Exception raised adding callId=%s", c.call.getId());
                     result[i] = null;
+                    mAnomalyReporterAdapter.reportAnomaly(LOG_CALL_FAILED_ANOMALY_ID,
+                            LOG_CALL_FAILED_ANOMALY_DESC);
                 }
             }
             return result;
@@ -567,7 +626,7 @@
             return Locale.getDefault().getCountry();
         }
 
-        return country.getCountryIso();
+        return country.getCountryCode();
     }
 
     /**
@@ -578,28 +637,84 @@
     public String getCountryIso() {
         synchronized (mLock) {
             if (mCurrentCountryIso == null) {
-                Log.i(TAG, "Country cache is null. Detecting Country and Setting Cache...");
+                // Moving this into the constructor will pose issues if the service is not yet set
+                // up, causing a RemoteException to be thrown. Note that the callback is only
+                // registered if the country iso cache is null (so in an ideal setting, this should
+                // only require a one-time configuration).
                 final CountryDetector countryDetector =
                         (CountryDetector) mContext.getSystemService(Context.COUNTRY_DETECTOR);
-                Country country = null;
                 if (countryDetector != null) {
-                    country = countryDetector.detectCountry();
-
-                    countryDetector.addCountryListener((newCountry) -> {
-                        Log.startSession("CLM.oCD");
-                        try {
-                            synchronized (mLock) {
-                                Log.i(TAG, "Country ISO changed. Retrieving new ISO...");
-                                mCurrentCountryIso = getCountryIsoFromCountry(newCountry);
-                            }
-                        } finally {
-                            Log.endSession();
-                        }
-                    }, Looper.getMainLooper());
+                    countryDetector.registerCountryDetectorCallback(
+                            mCountryCodeExecutor, this::countryCodeConsumer);
                 }
-                mCurrentCountryIso = getCountryIsoFromCountry(country);
+                mCurrentCountryIso = getCountryIsoFromCountry(mCurrentCountry);
             }
             return mCurrentCountryIso;
         }
     }
+
+    /** Consumer to receive the country code if it changes. */
+    private void countryCodeConsumer(Country newCountry) {
+        Log.startSession("CLM.cCC");
+        try {
+            Log.i(TAG, "Country ISO changed. Retrieving new ISO...");
+            synchronized (mLock) {
+                mCurrentCountry = newCountry;
+                mCurrentCountryIso = getCountryIsoFromCountry(newCountry);
+            }
+        } finally {
+            Log.endSession();
+        }
+    }
+
+    /**
+     * Returns a pair containing the number of rows in the call log, as well as the maximum call log
+     * ID.  There is a limit of 500 entries in the call log for a phone account, so once we hit 500
+     * we can reasonably expect that number to not change before and after logging a call.
+     * We determine the maximum ID in the call log since this is a way we can objectively check if
+     * the provider did record a call log entry or not.  Ideally there should be more call log
+     * entries after logging than before, and certainly not less.
+     * @return pair with number of rows in the call log and max id.
+     */
+    private Pair<Integer, Integer> getCallLogStats(@NonNull Call call) {
+        try {
+            // Ensure we query the call log based on the current user.
+            final Context currentUserContext = mContext.createContextAsUser(
+                    call.getAssociatedUser(), /* flags= */ 0);
+            final ContentResolver currentUserResolver = currentUserContext.getContentResolver();
+            final UserManager userManager = currentUserContext.getSystemService(UserManager.class);
+            final int currentUserId = userManager.getProcessUserId();
+
+            // Use shadow provider based on current user unlock state.
+            Uri providerUri;
+            if (userManager.isUserUnlocked(currentUserId)) {
+                providerUri = Calls.CONTENT_URI;
+            } else {
+                providerUri = Calls.SHADOW_CONTENT_URI;
+            }
+            int maxCallId = -1;
+            int numFound;
+            try (Cursor countCursor = currentUserResolver.query(providerUri,
+                    new String[]{Calls._ID},
+                    null,
+                    null,
+                    Calls._ID + " DESC")) {
+                numFound = countCursor.getCount();
+                if (numFound > 0) {
+                    countCursor.moveToFirst();
+                    maxCallId = countCursor.getInt(0);
+                }
+            }
+            return new Pair<>(numFound, maxCallId);
+        } catch (Exception e) {
+            // Oh jeepers, we crashed getting the call count.
+            Log.e(TAG, e, "getCountOfCallLogRows: failed");
+            return new Pair<>(-1, -1);
+        }
+    }
+
+    @VisibleForTesting
+    public void setAnomalyReporterAdapter(AnomalyReporterAdapter anomalyReporterAdapter){
+        mAnomalyReporterAdapter = anomalyReporterAdapter;
+    }
 }
diff --git a/src/com/android/server/telecom/CallsManager.java b/src/com/android/server/telecom/CallsManager.java
index 77570c3..cc5a15d 100644
--- a/src/com/android/server/telecom/CallsManager.java
+++ b/src/com/android/server/telecom/CallsManager.java
@@ -73,6 +73,7 @@
 import android.os.Process;
 import android.os.ResultReceiver;
 import android.os.SystemClock;
+import android.os.SystemProperties;
 import android.os.SystemVibrator;
 import android.os.Trace;
 import android.os.UserHandle;
@@ -129,9 +130,11 @@
 import com.android.server.telecom.callfiltering.DirectToVoicemailFilter;
 import com.android.server.telecom.callfiltering.DndCallFilter;
 import com.android.server.telecom.callfiltering.IncomingCallFilterGraph;
+import com.android.server.telecom.callfiltering.IncomingCallFilterGraphProvider;
 import com.android.server.telecom.callredirection.CallRedirectionProcessor;
 import com.android.server.telecom.components.ErrorDialogActivity;
 import com.android.server.telecom.components.TelecomBroadcastReceiver;
+import com.android.server.telecom.flags.FeatureFlags;
 import com.android.server.telecom.stats.CallFailureCause;
 import com.android.server.telecom.ui.AudioProcessingNotification;
 import com.android.server.telecom.ui.CallRedirectionTimeoutDialogActivity;
@@ -140,8 +143,8 @@
 import com.android.server.telecom.ui.DisconnectedCallNotifier;
 import com.android.server.telecom.ui.IncomingCallNotifier;
 import com.android.server.telecom.ui.ToastFactory;
-import com.android.server.telecom.voip.TransactionManager;
 import com.android.server.telecom.voip.VoipCallMonitor;
+import com.android.server.telecom.voip.TransactionManager;
 
 import java.util.ArrayList;
 import java.util.Arrays;
@@ -210,7 +213,7 @@
         void onHoldToneRequested(Call call);
         void onExternalCallChanged(Call call, boolean isExternalCall);
         void onCallStreamingStateChanged(Call call, boolean isStreaming);
-        void onDisconnectedTonePlaying(boolean isTonePlaying);
+        void onDisconnectedTonePlaying(Call call, boolean isTonePlaying);
         void onConnectionTimeChanged(Call call);
         void onConferenceStateChanged(Call call, boolean isConference);
         void onCdmaConferenceSwap(Call call);
@@ -222,6 +225,29 @@
         void performAction();
     }
 
+    /**
+     * @hide
+     */
+    public interface Response<IN, OUT> {
+
+        /**
+         * Provide a set of results.
+         *
+         * @param request The original request.
+         * @param result The results.
+         */
+        void onResult(IN request, OUT... result);
+
+        /**
+         * Indicates the inability to provide results.
+         *
+         * @param request The original request.
+         * @param code An integer code indicating the reason for failure.
+         * @param msg A message explaining the reason for failure.
+         */
+        void onError(IN request, int code, String msg);
+    }
+
     private static final String TAG = "CallsManager";
 
     /**
@@ -286,15 +312,14 @@
     public static final String EXCEPTION_RETRIEVING_PHONE_ACCOUNTS_EMERGENCY_ERROR_MSG =
             "Exception thrown while retrieving list of potential phone accounts when placing an "
                     + "emergency call.";
-    public static final UUID EMERGENCY_CALL_DISCONNECTED_BEFORE_BEING_ADDED_ERROR_UUID =
-            UUID.fromString("f9a916c8-8d61-4550-9ad3-11c2e84f6364");
-    public static final String EMERGENCY_CALL_DISCONNECTED_BEFORE_BEING_ADDED_ERROR_MSG =
-            "An emergency call was disconnected after the connection was created but before the "
-                    + "call was successfully added to CallsManager.";
     public static final UUID EMERGENCY_CALL_ABORTED_NO_PHONE_ACCOUNTS_ERROR_UUID =
             UUID.fromString("2e994acb-1997-4345-8bf3-bad04303de26");
     public static final String EMERGENCY_CALL_ABORTED_NO_PHONE_ACCOUNTS_ERROR_MSG =
             "An emergency call was aborted since there were no available phone accounts.";
+    public static final UUID TELEPHONY_HAS_DEFAULT_BUT_TELECOM_DOES_NOT_UUID =
+            UUID.fromString("0a86157c-50ca-11ee-be56-0242ac120002");
+    public static final String TELEPHONY_HAS_DEFAULT_BUT_TELECOM_DOES_NOT_MSG =
+            "Telephony has a default MO acct but Telecom prompted user for MO";
 
     private static final int[] OUTGOING_CALL_STATES =
             {CallState.CONNECTING, CallState.SELECT_PHONE_ACCOUNT, CallState.DIALING,
@@ -463,6 +488,9 @@
     private final TransactionManager mTransactionManager;
     private final UserManager mUserManager;
     private final CallStreamingNotification mCallStreamingNotification;
+    private final FeatureFlags mFeatureFlags;
+
+    private final IncomingCallFilterGraphProvider mIncomingCallFilterGraphProvider;
 
     private final ConnectionServiceFocusManager.CallsManagerRequester mRequester =
             new ConnectionServiceFocusManager.CallsManagerRequester() {
@@ -572,10 +600,14 @@
             CallAnomalyWatchdog callAnomalyWatchdog,
             Ringer.AccessibilityManagerAdapter accessibilityManagerAdapter,
             Executor asyncTaskExecutor,
+            Executor asyncCallAudioTaskExecutor,
             BlockedNumbersAdapter blockedNumbersAdapter,
             TransactionManager transactionManager,
             EmergencyCallDiagnosticLogger emergencyCallDiagnosticLogger,
-            CallStreamingNotification callStreamingNotification) {
+            CallAudioCommunicationDeviceTracker communicationDeviceTracker,
+            CallStreamingNotification callStreamingNotification,
+            FeatureFlags featureFlags,
+            IncomingCallFilterGraphProvider incomingCallFilterGraphProvider) {
 
         mContext = context;
         mLock = lock;
@@ -594,28 +626,36 @@
         mEmergencyCallHelper = emergencyCallHelper;
         mCallerInfoLookupHelper = callerInfoLookupHelper;
         mEmergencyCallDiagnosticLogger = emergencyCallDiagnosticLogger;
+        mIncomingCallFilterGraphProvider = incomingCallFilterGraphProvider;
 
         mDtmfLocalTonePlayer =
                 new DtmfLocalTonePlayer(new DtmfLocalTonePlayer.ToneGeneratorProxy());
-        CallAudioRouteStateMachine callAudioRouteStateMachine =
-                callAudioRouteStateMachineFactory.create(
-                        context,
-                        this,
-                        bluetoothManager,
-                        wiredHeadsetManager,
-                        statusBarNotifier,
-                        audioServiceFactory,
-                        CallAudioRouteStateMachine.EARPIECE_AUTO_DETECT,
-                        asyncTaskExecutor
-                );
-        callAudioRouteStateMachine.initialize();
+        CallAudioRouteAdapter callAudioRouteAdapter;
+        if (!featureFlags.useRefactoredAudioRouteSwitching()) {
+            callAudioRouteAdapter = callAudioRouteStateMachineFactory.create(
+                    context,
+                    this,
+                    bluetoothManager,
+                    wiredHeadsetManager,
+                    statusBarNotifier,
+                    audioServiceFactory,
+                    CallAudioRouteStateMachine.EARPIECE_AUTO_DETECT,
+                    asyncCallAudioTaskExecutor,
+                    communicationDeviceTracker,
+                    featureFlags
+            );
+        } else {
+            callAudioRouteAdapter = new CallAudioRouteController();
+        }
+        callAudioRouteAdapter.initialize();
 
         CallAudioRoutePeripheralAdapter callAudioRoutePeripheralAdapter =
                 new CallAudioRoutePeripheralAdapter(
-                        callAudioRouteStateMachine,
+                        callAudioRouteAdapter,
                         bluetoothManager,
                         wiredHeadsetManager,
-                        mDockManager);
+                        mDockManager,
+                        asyncRingtonePlayer);
         AudioManager audioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
         InCallTonePlayer.MediaPlayerFactory mediaPlayerFactory =
                 (resourceId, attributes) ->
@@ -639,37 +679,45 @@
                 ringtoneFactory, systemVibrator,
                 new Ringer.VibrationEffectProxy(), mInCallController,
                 mContext.getSystemService(NotificationManager.class),
-                accessibilityManagerAdapter);
+                accessibilityManagerAdapter, featureFlags);
         mCallRecordingTonePlayer = new CallRecordingTonePlayer(mContext, audioManager,
                 mTimeoutsAdapter, mLock);
-        mCallAudioManager = new CallAudioManager(callAudioRouteStateMachine,
+        mCallAudioManager = new CallAudioManager(callAudioRouteAdapter,
                 this, callAudioModeStateMachineFactory.create(systemStateHelper,
-                (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE)),
+                (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE),
+                featureFlags, communicationDeviceTracker),
                 playerFactory, mRinger, new RingbackPlayer(playerFactory),
-                bluetoothStateReceiver, mDtmfLocalTonePlayer);
+                bluetoothStateReceiver, mDtmfLocalTonePlayer, featureFlags);
 
         mConnectionSvrFocusMgr = connectionServiceFocusManagerFactory.create(mRequester);
         mHeadsetMediaButton = headsetMediaButtonFactory.create(context, this, mLock);
         mTtyManager = new TtyManager(context, mWiredHeadsetManager);
         mProximitySensorManager = proximitySensorManagerFactory.create(context, this);
         mPhoneStateBroadcaster = new PhoneStateBroadcaster(this);
-        mCallLogManager = new CallLogManager(context, phoneAccountRegistrar, mMissedCallNotifier);
+        mCallLogManager = new CallLogManager(context, phoneAccountRegistrar, mMissedCallNotifier,
+                mAnomalyReporter, featureFlags);
         mConnectionServiceRepository =
                 new ConnectionServiceRepository(mPhoneAccountRegistrar, mContext, mLock, this);
         mInCallWakeLockController = inCallWakeLockControllerFactory.create(context, this);
         mClockProxy = clockProxy;
         mToastFactory = toastFactory;
         mRoleManagerAdapter = roleManagerAdapter;
+        mVoipCallMonitor = new VoipCallMonitor(mContext, mLock);
         mTransactionManager = transactionManager;
         mBlockedNumbersAdapter = blockedNumbersAdapter;
         mCallStreamingController = new CallStreamingController(mContext, mLock);
-        mVoipCallMonitor = new VoipCallMonitor(mContext, mLock);
         mCallStreamingNotification = callStreamingNotification;
+        mFeatureFlags = featureFlags;
 
+        if (mFeatureFlags.useImprovedListenerOrder()) {
+            mListeners.add(mInCallController);
+        }
         mListeners.add(mInCallWakeLockController);
         mListeners.add(statusBarNotifier);
         mListeners.add(mCallLogManager);
-        mListeners.add(mInCallController);
+        if (!mFeatureFlags.useImprovedListenerOrder()) {
+            mListeners.add(mInCallController);
+        }
         mListeners.add(mCallEndpointController);
         mListeners.add(mCallDiagnosticServiceController);
         mListeners.add(mCallAudioManager);
@@ -744,11 +792,14 @@
     @Override
     @VisibleForTesting
     public void onSuccessfulOutgoingCall(Call call, int callState) {
-        Log.v(this, "onSuccessfulOutgoingCall, %s", call);
+        Log.v(this, "onSuccessfulOutgoingCall, call=[%s], state=[%d]", call, callState);
         call.setPostCallPackageName(getRoleManagerAdapter().getDefaultCallScreeningApp(
                 call.getAssociatedUser()));
 
-        setCallState(call, callState, "successful outgoing call");
+        if (!mFeatureFlags.fixAudioFlickerForOutgoingCalls()) {
+            setCallState(call, callState, "successful outgoing call");
+        }
+
         if (!mCalls.contains(call)) {
             // Call was not added previously in startOutgoingCall due to it being a potential MMI
             // code, so add it now.
@@ -760,7 +811,18 @@
             listener.onConnectionServiceChanged(call, null, call.getConnectionService());
         }
 
-        markCallAsDialing(call);
+        if (mFeatureFlags.fixAudioFlickerForOutgoingCalls()) {
+            // Allow the ConnectionService to start the call in the active state. This case is
+            // helpful for conference calls or meetings that can skip the dialing stage.
+            if (callState == CallState.ACTIVE) {
+                setCallState(call, callState, "skipping the dialing state and setting active");
+            } else {
+                markCallAsDialing(call);
+            }
+        }
+        else{
+            markCallAsDialing(call);
+        }
     }
 
     @Override
@@ -779,11 +841,12 @@
                 ? new Bundle()
                 : phoneAccount.getExtras();
         TelephonyManager telephonyManager = getTelephonyManager();
+        boolean performDndFilter = mFeatureFlags.skipFilterPhoneAccountPerformDndFilter();
         if (incomingCall.hasProperty(Connection.PROPERTY_EMERGENCY_CALLBACK_MODE) ||
                 incomingCall.hasProperty(Connection.PROPERTY_NETWORK_IDENTIFIED_EMERGENCY_CALL) ||
                 telephonyManager.isInEmergencySmsMode() ||
                 incomingCall.isSelfManaged() ||
-                extras.getBoolean(PhoneAccount.EXTRA_SKIP_CALL_FILTERING)) {
+                (!performDndFilter && extras.getBoolean(PhoneAccount.EXTRA_SKIP_CALL_FILTERING))) {
             Log.i(this, "Skipping call filtering for %s (ecm=%b, "
                             + "networkIdentifiedEmergencyCall = %b, emergencySmsMode = %b, "
                             + "selfMgd=%b, skipExtra=%b)",
@@ -801,25 +864,40 @@
                     .build(), false);
             incomingCall.setIsUsingCallFiltering(false);
             return;
+        } else if (performDndFilter && extras.getBoolean(PhoneAccount.EXTRA_SKIP_CALL_FILTERING)) {
+            IncomingCallFilterGraph graph = setupDndFilterOnlyGraph(incomingCall);
+            graph.performFiltering();
+            return;
         }
 
         IncomingCallFilterGraph graph = setUpCallFilterGraph(incomingCall);
         graph.performFiltering();
     }
 
+    private IncomingCallFilterGraph setupDndFilterOnlyGraph(Call incomingHfpCall) {
+        incomingHfpCall.setIsUsingCallFiltering(true);
+        DndCallFilter dndCallFilter = new DndCallFilter(incomingHfpCall, mRinger);
+        IncomingCallFilterGraph graph = mIncomingCallFilterGraphProvider.createGraph(
+                incomingHfpCall,
+                this::onCallFilteringComplete, mContext, mTimeoutsAdapter, mLock);
+        graph.addFilter(dndCallFilter);
+        mGraphHandlerThreads.add(graph.getHandlerThread());
+        return graph;
+    }
+
     private IncomingCallFilterGraph setUpCallFilterGraph(Call incomingCall) {
+        TelecomManager telecomManager = mContext.getSystemService(TelecomManager.class);
         incomingCall.setIsUsingCallFiltering(true);
         String carrierPackageName = getCarrierPackageName();
         UserHandle userHandle = incomingCall.getAssociatedUser();
-        String defaultDialerPackageName = TelecomManager.from(mContext).
-                getDefaultDialerPackage(userHandle);
+        String defaultDialerPackageName = telecomManager.getDefaultDialerPackage(userHandle);
         String userChosenPackageName = getRoleManagerAdapter().
                 getDefaultCallScreeningApp(userHandle);
         AppLabelProxy appLabelProxy = packageName -> AppLabelProxy.Util.getAppLabel(
                 mContext.getPackageManager(), packageName);
         ParcelableCallUtils.Converter converter = new ParcelableCallUtils.Converter();
 
-        IncomingCallFilterGraph graph = new IncomingCallFilterGraph(incomingCall,
+        IncomingCallFilterGraph graph = mIncomingCallFilterGraphProvider.createGraph(incomingCall,
                 this::onCallFilteringComplete, mContext, mTimeoutsAdapter, mLock);
         DirectToVoicemailFilter voicemailFilter = new DirectToVoicemailFilter(incomingCall,
                 mCallerInfoLookupHelper);
@@ -986,7 +1064,7 @@
             if (result.shouldShowNotification) {
                 Log.i(this, "onCallScreeningCompleted: blocked call, showing notification.");
                 mMissedCallNotifier.showMissedCallNotification(
-                        new MissedCallNotifier.CallInfo(incomingCall));
+                        new MissedCallNotifier.CallInfo(incomingCall), /* uri= */ null);
             }
         }
     }
@@ -1244,9 +1322,7 @@
     @Override
     public void onHandoverRequested(Call call, PhoneAccountHandle handoverTo, int videoState,
                                     Bundle extras, boolean isLegacy) {
-        if (isLegacy) {
-            requestHandoverViaEvents(call, handoverTo, videoState, extras);
-        } else {
+        if (!isLegacy) {
             requestHandover(call, handoverTo, videoState, extras);
         }
     }
@@ -1299,7 +1375,7 @@
         return mCallAudioManager;
     }
 
-    InCallController getInCallController() {
+    public InCallController getInCallController() {
         return mInCallController;
     }
 
@@ -1379,8 +1455,11 @@
     }
 
     @VisibleForTesting
-    public void setAnomalyReporterAdapter(AnomalyReporterAdapter mAnomalyReporterAdapter){
-        mAnomalyReporter = mAnomalyReporterAdapter;
+    public void setAnomalyReporterAdapter(AnomalyReporterAdapter anomalyReporterAdapter){
+        mAnomalyReporter = anomalyReporterAdapter;
+        if (mCallLogManager != null) {
+            mCallLogManager.setAnomalyReporterAdapter(anomalyReporterAdapter);
+        }
     }
 
     void processIncomingConference(PhoneAccountHandle phoneAccountHandle, Bundle extras) {
@@ -1425,7 +1504,8 @@
                 false /* forceAttachToExistingConnection */,
                 isConference, /* isConference */
                 mClockProxy,
-                mToastFactory);
+                mToastFactory,
+                mFeatureFlags);
         // Ensure new calls related to self-managed calls/connections are set as such. This will
         // be overridden when the actual connection is returned in startCreateConnection, however
         // doing this now ensures the logs and any other logic will treat this call as self-managed
@@ -1452,7 +1532,10 @@
                 }
             }
             // Incoming address was set via EXTRA_INCOMING_CALL_ADDRESS above.
-            call.setAssociatedUser(phoneAccountHandle.getUserHandle());
+            UserHandle associatedUser = UserUtil.getAssociatedUserForCall(
+                    mFeatureFlags.associatedUserRefactorForWorkProfile(),
+                    getPhoneAccountRegistrar(), getCurrentUserHandle(), phoneAccountHandle);
+            call.setAssociatedUser(associatedUser);
         }
 
         if (phoneAccount != null) {
@@ -1572,15 +1655,19 @@
         // Check if the target phone account is possibly in ECBM.
         call.setIsInECBM(getEmergencyCallHelper()
                 .isLastOutgoingEmergencyCallPAH(call.getTargetPhoneAccount()));
-        // If the phone account user profile is paused or the call isn't visible to the secondary/
-        // guest user, reject the non-emergency incoming call. When the current user is the admin,
-        // we need to allow the calls to go through if the work profile isn't paused. We should
-        // always allow emergency calls and also allow non-emergency calls when ECBM is active for
-        // the phone account.
-        if ((mUserManager.isQuietModeEnabled(call.getAssociatedUser())
-                || (!mUserManager.isUserAdmin(mCurrentUserHandle.getIdentifier())
-                && !isCallVisibleForUser(call, mCurrentUserHandle)))
-                && !call.isEmergencyCall() && !call.isInECBM()) {
+
+        // Check if call is visible to the current user.
+        boolean isCallHiddenFromProfile = !isCallVisibleForUser(call, mCurrentUserHandle);
+        // For admins, we should check if the work profile is paused in order to reject
+        // the call.
+        if (mUserManager.isUserAdmin(mCurrentUserHandle.getIdentifier())) {
+            isCallHiddenFromProfile &= mUserManager.isQuietModeEnabled(
+                call.getAssociatedUser());
+        }
+
+        // We should always allow emergency calls and also allow non-emergency calls when ECBM
+        // is active for the phone account.
+        if (isCallHiddenFromProfile && !call.isEmergencyCall() && !call.isInECBM()) {
             Log.d(TAG, "Rejecting non-emergency call because the owner %s is not running.",
                     phoneAccountHandle.getUserHandle());
             call.setMissedReason(USER_MISSED_NOT_RUNNING);
@@ -1653,11 +1740,15 @@
                 true /* forceAttachToExistingConnection */,
                 false, /* isConference */
                 mClockProxy,
-                mToastFactory);
+                mToastFactory,
+                mFeatureFlags);
         call.initAnalytics();
 
         // For unknown calls, base the associated user off of the target phone account handle.
-        call.setAssociatedUser(phoneAccountHandle.getUserHandle());
+        UserHandle associatedUser = UserUtil.getAssociatedUserForCall(
+                mFeatureFlags.associatedUserRefactorForWorkProfile(),
+                getPhoneAccountRegistrar(), getCurrentUserHandle(), phoneAccountHandle);
+        call.setAssociatedUser(associatedUser);
         setIntentExtrasAndStartTime(call, extras);
         call.addListener(this);
         notifyStartCreateConnection(call);
@@ -1771,7 +1862,8 @@
                     false /* forceAttachToExistingConnection */,
                     isConference, /* isConference */
                     mClockProxy,
-                    mToastFactory);
+                    mToastFactory,
+                    mFeatureFlags);
 
             if (extras.containsKey(TelecomManager.TRANSACTION_CALL_ID_KEY)) {
                 call.setIsTransactionalCall(true);
@@ -2047,7 +2139,7 @@
                                         + " available accounts.");
                                 showErrorMessage(R.string.cant_call_due_to_no_supported_service);
                                 mListeners.forEach(l -> l.onCreateConnectionFailed(callToPlace));
-                                if (callToPlace.isEmergencyCall()){
+                                if (callToPlace.isEmergencyCall()) {
                                     mAnomalyReporter.reportAnomaly(
                                             EMERGENCY_CALL_ABORTED_NO_PHONE_ACCOUNTS_ERROR_UUID,
                                             EMERGENCY_CALL_ABORTED_NO_PHONE_ACCOUNTS_ERROR_MSG);
@@ -2060,6 +2152,21 @@
                                 return CompletableFuture.completedFuture(Pair.create(callToPlace,
                                         accountSuggestions.get(0).getPhoneAccountHandle()));
                             }
+
+                            // At this point Telecom is requesting the user to select a phone
+                            // account. However, Telephony is reporting that the user has a default
+                            // outgoing account (which is denoted by a non-negative subId number).
+                            // At some point, Telecom and Telephony are out of sync with the default
+                            // outgoing calling account.
+                            if(mFeatureFlags.telephonyHasDefaultButTelecomDoesNot()) {
+                                if (SubscriptionManager.getDefaultVoiceSubscriptionId() !=
+                                        SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
+                                    mAnomalyReporter.reportAnomaly(
+                                            TELEPHONY_HAS_DEFAULT_BUT_TELECOM_DOES_NOT_UUID,
+                                            TELEPHONY_HAS_DEFAULT_BUT_TELECOM_DOES_NOT_MSG);
+                                }
+                            }
+
                             // This is the state where the user is expected to select an account
                             callToPlace.setState(CallState.SELECT_PHONE_ACCOUNT,
                                     "needs account selection");
@@ -2303,6 +2410,15 @@
 
          PhoneAccountHandle phoneAccountHandle = clientExtras.getParcelable(
                  TelecomManager.EXTRA_PHONE_ACCOUNT_HANDLE);
+         PhoneAccount account =
+                mPhoneAccountRegistrar.getPhoneAccount(phoneAccountHandle, initiatingUser);
+         boolean isSelfManaged = account != null && account.isSelfManaged();
+         // Enforce outgoing call restriction for conference calls. This is handled via
+         // UserCallIntentProcessor for normal MO calls.
+         if (UserUtil.hasOutgoingCallsUserRestriction(mContext, initiatingUser,
+                 null, isSelfManaged, CallsManager.class.getCanonicalName())) {
+             return;
+         }
          CompletableFuture<Call> callFuture = startOutgoingCall(participants, phoneAccountHandle,
                  clientExtras, initiatingUser, null/* originalIntent */, callingPackage,
                  true/* isconference*/);
@@ -2879,9 +2995,11 @@
             // from the client via a transaction before answering.
             call.answer(videoState);
         } else {
+            if (!mFeatureFlags.genAnomReportOnFocusTimeout()) {
+                Call activeCall = (Call) mConnectionSvrFocusMgr.getCurrentFocusCall();
+                Log.d(this, "answerCall: Incoming call = %s Ongoing call %s", call, activeCall);
+            }
             // Hold or disconnect the active call and request call focus for the incoming call.
-            Call activeCall = (Call) mConnectionSvrFocusMgr.getCurrentFocusCall();
-            Log.d(this, "answerCall: Incoming call = %s Ongoing call %s", call, activeCall);
             holdActiveCallForNewCall(call);
             mConnectionSvrFocusMgr.requestFocus(
                     call,
@@ -3033,9 +3151,8 @@
      * @return {@code true} if the speakerphone should automatically be enabled.
      */
     private static boolean isSpeakerEnabledForVideoCalls() {
-        return TelephonyProperties.videocall_audio_output()
-                .orElse(TelecomManager.AUDIO_OUTPUT_DEFAULT)
-                == TelecomManager.AUDIO_OUTPUT_ENABLE_SPEAKER;
+        return SystemProperties.getInt(TelecomManager.PROPERTY_VIDEOCALL_AUDIO_OUTPUT,
+                TelecomManager.AUDIO_OUTPUT_DEFAULT) == TelecomManager.AUDIO_OUTPUT_ENABLE_SPEAKER;
     }
 
     /**
@@ -3402,7 +3519,7 @@
     }
 
     /** Called by the in-call UI to change the mute state. */
-    void mute(boolean shouldMute) {
+    public void mute(boolean shouldMute) {
         if (isInEmergencyCall() && shouldMute) {
             Log.i(this, "Refusing to turn on mute because we're in an emergency call");
             shouldMute = false;
@@ -3512,14 +3629,15 @@
      * Called when disconnect tone is started or stopped, including any InCallTone
      * after disconnected call.
      *
+     * @param call
      * @param isTonePlaying true if the disconnected tone is started, otherwise the disconnected
-     * tone is stopped.
+     *                      tone is stopped.
      */
     @VisibleForTesting
-    public void onDisconnectedTonePlaying(boolean isTonePlaying) {
+    public void onDisconnectedTonePlaying(Call call, boolean isTonePlaying) {
         Log.v(this, "onDisconnectedTonePlaying, %s", isTonePlaying ? "started" : "stopped");
         for (CallsManagerListener listener : mListeners) {
-            listener.onDisconnectedTonePlaying(isTonePlaying);
+            listener.onDisconnectedTonePlaying(call, isTonePlaying);
         }
     }
 
@@ -3714,11 +3832,6 @@
         // Notify listeners that the call was disconnected before being added to CallsManager.
         // Listeners will not receive onAdded or onRemoved callbacks.
         if (!mCalls.contains(call)) {
-            if (call.isEmergencyCall()) {
-                mAnomalyReporter.reportAnomaly(
-                        EMERGENCY_CALL_DISCONNECTED_BEFORE_BEING_ADDED_ERROR_UUID,
-                        EMERGENCY_CALL_DISCONNECTED_BEFORE_BEING_ADDED_ERROR_MSG);
-            }
             mListeners.forEach(l -> l.onCreateConnectionFailed(call));
         }
 
@@ -4153,7 +4266,8 @@
                 connectTime,
                 connectElapsedTime,
                 mClockProxy,
-                mToastFactory);
+                mToastFactory,
+                mFeatureFlags);
 
         // Unlike connections, conferences are not created first and then notified as create
         // connection complete from the CS.  They originate from the CS and are reported directly to
@@ -4171,7 +4285,10 @@
         call.setStatusHints(parcelableConference.getStatusHints());
         call.putConnectionServiceExtras(parcelableConference.getExtras());
         // For conference calls, set the associated user from the target phone account user handle.
-        call.setAssociatedUser(phoneAccount.getUserHandle());
+        UserHandle associatedUser = UserUtil.getAssociatedUserForCall(
+                mFeatureFlags.associatedUserRefactorForWorkProfile(), getPhoneAccountRegistrar(),
+                getCurrentUserHandle(), phoneAccount);
+        call.setAssociatedUser(associatedUser);
         // In case this Conference was added via a ConnectionManager, keep track of the original
         // Connection ID as created by the originating ConnectionService.
         Bundle extras = parcelableConference.getExtras();
@@ -4457,10 +4574,6 @@
             if (handoverState == HandoverState.HANDOVER_FROM_STARTED) {
                 // Disconnect before handover was accepted.
                 Log.i(this, "setCallState: disconnect before handover accepted");
-                // Let the handover destination know that the source has disconnected prior to
-                // completion of the handover.
-                call.getHandoverDestinationCall().sendCallEvent(
-                        android.telecom.Call.EVENT_HANDOVER_SOURCE_DISCONNECTED, null);
             } else if (handoverState == HandoverState.HANDOVER_ACCEPTED) {
                 Log.i(this, "setCallState: handover from complete");
                 completeHandoverFrom(call);
@@ -4478,11 +4591,9 @@
         // Inform the "from" Call (ie the source call) that the handover from it has
         // completed; this allows the InCallService to be notified that a handover it
         // initiated completed.
-        call.onConnectionEvent(Connection.EVENT_HANDOVER_COMPLETE, null);
         call.onHandoverComplete();
 
         // Inform the "to" ConnectionService that handover to it has completed.
-        handoverTo.sendCallEvent(android.telecom.Call.EVENT_HANDOVER_COMPLETE, null);
         handoverTo.onHandoverComplete();
         answerCall(handoverTo, handoverTo.getVideoState());
         call.markFinishedHandoverStateAndCleanup(HandoverState.HANDOVER_COMPLETE);
@@ -4505,7 +4616,6 @@
         // Inform the "from" Call (ie the source call) that the handover from it has
         // failed; this allows the InCallService to be notified that a handover it
         // initiated failed.
-        handoverFrom.onConnectionEvent(Connection.EVENT_HANDOVER_FAILED, null);
         handoverFrom.onHandoverFailed(android.telecom.Call.Callback.HANDOVER_FAILURE_USER_REJECTED);
 
         // Inform the "to" ConnectionService that handover to it has failed.  This
@@ -4514,7 +4624,6 @@
             // Only attempt if the call has a bound ConnectionService if handover failed
             // early on in the handover process, the CS will be unbound and we won't be
             // able to send the call event.
-            handoverTo.sendCallEvent(android.telecom.Call.EVENT_HANDOVER_FAILED, null);
             handoverTo.getConnectionService().handoverFailed(handoverTo,
                     android.telecom.Call.Callback.HANDOVER_FAILURE_USER_REJECTED);
         }
@@ -4737,15 +4846,21 @@
 
     /**
      * Determines the number of unholdable calls present in a connection service other than the one
-     * the passed phone account belonds to.
+     * the passed phone account belongs to. If a ConnectionService has not been associated with an
+     * outgoing call yet (for example, it is in the SELECT_PHONE_ACCOUNT state), then we do not
+     * count that call because it is not tracked as an active call yet.
      * @param phoneAccountHandle The handle of the PhoneAccount.
      * @return Number of unholdable calls owned by other connection service.
      */
     public int getNumUnholdableCallsForOtherConnectionService(
             PhoneAccountHandle phoneAccountHandle) {
         return (int) mCalls.stream().filter(call ->
-                !phoneAccountHandle.getComponentName().equals(
-                        call.getTargetPhoneAccount().getComponentName())
+                // If this convention needs to be changed, answerCall will need to be modified to
+                // change what an "active call" is so that the call in SELECT_PHONE_ACCOUNT state
+                // will be properly cancelled.
+                call.getTargetPhoneAccount() != null
+                        && !phoneAccountHandle.getComponentName().equals(
+                                call.getTargetPhoneAccount().getComponentName())
                         && call.getParentCall() == null
                         && !call.isExternalCall()
                         && !canHold(call)).count();
@@ -5203,7 +5318,8 @@
                 connection.getConnectTimeMillis() /* connectTimeMillis */,
                 connection.getConnectElapsedTimeMillis(), /* connectElapsedTimeMillis */
                 mClockProxy,
-                mToastFactory);
+                mToastFactory,
+                mFeatureFlags);
 
         call.initAnalytics();
         call.getAnalytics().setCreatedFromExistingConnection(true);
@@ -5218,7 +5334,10 @@
                 connection.getCallerDisplayNamePresentation());
         // For existing connections, use the phone account user handle to determine the user
         // association with the call.
-        call.setAssociatedUser(connection.getPhoneAccount().getUserHandle());
+        UserHandle associatedUser = UserUtil.getAssociatedUserForCall(
+                mFeatureFlags.associatedUserRefactorForWorkProfile(), getPhoneAccountRegistrar(),
+                getCurrentUserHandle(), connection.getPhoneAccount());
+        call.setAssociatedUser(associatedUser);
         call.addListener(this);
         call.putConnectionServiceExtras(connection.getExtras());
 
@@ -5443,7 +5562,7 @@
         mCallAudioManager.getCallAudioModeStateMachine().getHandler().post(() -> {
             mainHandlerLatch.countDown();
         });
-        mCallAudioManager.getCallAudioRouteStateMachine().getHandler().post(() -> {
+        mCallAudioManager.getCallAudioRouteAdapter().getAdapterHandler().post(() -> {
             mainHandlerLatch.countDown();
         });
 
@@ -5469,9 +5588,10 @@
             // We are going to place the new outgoing call, so disconnect any ongoing self-managed
             // calls which are ongoing at this time.
             disconnectSelfManagedCalls("outgoing call " + callId);
-
-            mPendingCallConfirm.complete(mPendingCall);
-            mPendingCallConfirm = null;
+            if (mPendingCallConfirm != null) {
+                mPendingCallConfirm.complete(mPendingCall);
+                mPendingCallConfirm = null;
+            }
             mPendingCall = null;
         }
     }
@@ -5490,8 +5610,10 @@
             markCallAsDisconnected(mPendingCall, new DisconnectCause(DisconnectCause.CANCELED));
             markCallAsRemoved(mPendingCall);
             mPendingCall = null;
-            mPendingCallConfirm.complete(null);
-            mPendingCallConfirm = null;
+            if (mPendingCallConfirm != null) {
+                mPendingCallConfirm.complete(null);
+                mPendingCallConfirm = null;
+            }
         }
     }
 
@@ -5731,7 +5853,8 @@
             return;
         }
         ConnectionServiceWrapper service = mConnectionServiceRepository.getService(
-                phoneAccountHandle.getComponentName(), phoneAccountHandle.getUserHandle());
+                phoneAccountHandle.getComponentName(), phoneAccountHandle.getUserHandle(),
+                mFeatureFlags);
         if (service == null) {
             Log.i(this, "Found no connection service.");
             return;
@@ -5756,7 +5879,8 @@
             return;
         }
         ConnectionServiceWrapper service = mConnectionServiceRepository.getService(
-                phoneAccountHandle.getComponentName(), phoneAccountHandle.getUserHandle());
+                phoneAccountHandle.getComponentName(), phoneAccountHandle.getUserHandle(),
+                mFeatureFlags);
         if (service == null) {
             Log.i(this, "Found no connection service.");
             return;
@@ -5793,28 +5917,6 @@
     }
 
     /**
-     * Called in response to a {@link Call} receiving a {@link Call#sendCallEvent(String, Bundle)}
-     * of type {@link android.telecom.Call#EVENT_REQUEST_HANDOVER} indicating the
-     * {@link android.telecom.InCallService} has requested a handover to another
-     * {@link android.telecom.ConnectionService}.
-     *
-     * We will explicitly disallow a handover when there is an emergency call present.
-     *
-     * @param handoverFromCall The {@link Call} to be handed over.
-     * @param handoverToHandle The {@link PhoneAccountHandle} to hand over the call to.
-     * @param videoState The desired video state of {@link Call} after handover.
-     * @param initiatingExtras Extras associated with the handover, to be passed to the handover
-     *               {@link android.telecom.ConnectionService}.
-     */
-    private void requestHandoverViaEvents(Call handoverFromCall,
-                                          PhoneAccountHandle handoverToHandle,
-                                          int videoState, Bundle initiatingExtras) {
-
-        handoverFromCall.sendCallEvent(android.telecom.Call.EVENT_HANDOVER_FAILED, null);
-        Log.addEvent(handoverFromCall, LogUtils.Events.HANDOVER_REQUEST, "legacy request denied");
-    }
-
-    /**
      * Called in response to a {@link Call} receiving a {@link Call#handoverTo(PhoneAccountHandle,
      * int, Bundle)} indicating the {@link android.telecom.InCallService} has requested a
      * handover to another {@link android.telecom.ConnectionService}.
@@ -5860,7 +5962,7 @@
                 handoverFromCall.getHandle(), null,
                 null, null,
                 Call.CALL_DIRECTION_OUTGOING, false,
-                false, mClockProxy, mToastFactory);
+                false, mClockProxy, mToastFactory, mFeatureFlags);
         call.initAnalytics();
 
         // Set self-managed and voipAudioMode if destination is self-managed CS
@@ -6067,7 +6169,8 @@
                 false /* forceAttachToExistingConnection */,
                 false, /* isConference */
                 mClockProxy,
-                mToastFactory);
+                mToastFactory,
+                mFeatureFlags);
 
         if (fromCall == null || isHandoverInProgress() ||
                 !isHandoverFromPhoneAccountSupported(fromCall.getTargetPhoneAccount()) ||
diff --git a/src/com/android/server/telecom/CallsManagerListenerBase.java b/src/com/android/server/telecom/CallsManagerListenerBase.java
index 43f3b90..0c54be3 100644
--- a/src/com/android/server/telecom/CallsManagerListenerBase.java
+++ b/src/com/android/server/telecom/CallsManagerListenerBase.java
@@ -16,10 +16,10 @@
 
 package com.android.server.telecom;
 
-import android.telecom.AudioState;
 import android.telecom.CallAudioState;
 import android.telecom.CallEndpoint;
 import android.telecom.VideoProfile;
+
 import java.util.Set;
 
 /**
@@ -112,7 +112,7 @@
     }
 
     @Override
-    public void onDisconnectedTonePlaying(boolean isTonePlaying) {
+    public void onDisconnectedTonePlaying(Call call, boolean isTonePlaying) {
     }
 
     @Override
diff --git a/src/com/android/server/telecom/ConnectionServiceFocusManager.java b/src/com/android/server/telecom/ConnectionServiceFocusManager.java
index 3694727..35be0f8 100644
--- a/src/com/android/server/telecom/ConnectionServiceFocusManager.java
+++ b/src/com/android/server/telecom/ConnectionServiceFocusManager.java
@@ -26,8 +26,11 @@
 import android.telecom.Logging.Session;
 import android.text.TextUtils;
 import android.util.LocalLog;
+import android.util.LogPrinter;
+import android.util.Printer;
 
 import com.android.internal.annotations.VisibleForTesting;
+import com.android.server.telecom.flags.Flags;
 import com.android.internal.util.IndentingPrintWriter;
 
 import java.util.ArrayList;
@@ -35,6 +38,7 @@
 import java.util.Objects;
 import java.util.Optional;
 import java.util.Set;
+import java.util.UUID;
 import java.util.concurrent.BlockingQueue;
 import java.util.concurrent.LinkedBlockingQueue;
 import java.util.concurrent.TimeUnit;
@@ -44,6 +48,11 @@
     private static final String TAG = "ConnectionSvrFocusMgr";
     private static final int GET_CURRENT_FOCUS_TIMEOUT_MILLIS = 1000;
     private final LocalLog mLocalLog = new LocalLog(20);
+    private final AnomalyReporterAdapter mAnomalyReporter = new AnomalyReporterAdapterImpl();
+    public static final UUID WATCHDOG_GET_CALL_FOCUS_TIMEOUT_UUID =
+            UUID.fromString("edd7334a-ef87-432b-a1d0-a2f23959c73e");
+    public static final String WATCHDOG_GET_CALL_FOCUS_TIMEOUT_MSG =
+            "Telecom CallAnomalyWatchdog detected a timeout while getting the call focus.";
 
     /** Factory interface used to create the {@link ConnectionServiceFocusManager} instance. */
     public interface ConnectionServiceFocusManagerFactory {
@@ -332,8 +341,23 @@
             if (syncCallFocus != null) {
                 return syncCallFocus.orElse(null);
             } else {
-                Log.w(TAG, "Timed out waiting for synchronous current focus. Returning possibly"
-                        + " inaccurate result");
+                if (Flags.genAnomReportOnFocusTimeout()) {
+                    Log.w(TAG, "Timed out waiting for synchronous current focus. Returning possibly"
+                                    + " inaccurate result. returning currentFocusCall=[%s]",
+                            mCurrentFocusCall);
+
+                    // dump the state of the handler to better understand the timeout
+                    mEventHandler.dump(
+                            new LogPrinter(android.util.Log.INFO, TAG), "CsFocusMgr_timeout");
+
+                    // report the timeout
+                    mAnomalyReporter.reportAnomaly(
+                            WATCHDOG_GET_CALL_FOCUS_TIMEOUT_UUID,
+                            WATCHDOG_GET_CALL_FOCUS_TIMEOUT_MSG);
+                } else {
+                    Log.w(TAG, "Timed out waiting for synchronous current focus. Returning possibly"
+                            + " inaccurate result");
+                }
                 return mCurrentFocusCall;
             }
         } catch (InterruptedException e) {
diff --git a/src/com/android/server/telecom/ConnectionServiceRepository.java b/src/com/android/server/telecom/ConnectionServiceRepository.java
index 3991ed5..d6a78d0 100644
--- a/src/com/android/server/telecom/ConnectionServiceRepository.java
+++ b/src/com/android/server/telecom/ConnectionServiceRepository.java
@@ -23,6 +23,7 @@
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.util.IndentingPrintWriter;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import java.util.HashMap;
 
@@ -61,7 +62,10 @@
     }
 
     @VisibleForTesting
-    public ConnectionServiceWrapper getService(ComponentName componentName, UserHandle userHandle) {
+    public ConnectionServiceWrapper getService(
+            ComponentName componentName,
+            UserHandle userHandle,
+            FeatureFlags featureFlags) {
         Pair<ComponentName, UserHandle> cacheKey = Pair.create(componentName, userHandle);
         ConnectionServiceWrapper service = mServiceCache.get(cacheKey);
         if (service == null) {
@@ -72,7 +76,8 @@
                     mCallsManager,
                     mContext,
                     mLock,
-                    userHandle);
+                    userHandle,
+                    featureFlags);
             service.addListener(mUnbindListener);
             mServiceCache.put(cacheKey, service);
         }
diff --git a/src/com/android/server/telecom/ConnectionServiceWrapper.java b/src/com/android/server/telecom/ConnectionServiceWrapper.java
old mode 100755
new mode 100644
index c550ede..43ceff3
--- a/src/com/android/server/telecom/ConnectionServiceWrapper.java
+++ b/src/com/android/server/telecom/ConnectionServiceWrapper.java
@@ -23,10 +23,10 @@
 import android.content.ComponentName;
 import android.content.Context;
 import android.content.pm.PackageManager;
+import android.graphics.drawable.Icon;
 import android.location.Location;
 import android.location.LocationManager;
 import android.location.LocationRequest;
-import android.graphics.drawable.Icon;
 import android.net.Uri;
 import android.os.Binder;
 import android.os.Bundle;
@@ -65,8 +65,11 @@
 import com.android.internal.telecom.IVideoProvider;
 import com.android.internal.telecom.RemoteServiceCallback;
 import com.android.internal.util.Preconditions;
+import com.android.server.telecom.flags.FeatureFlags;
+import com.android.server.telecom.flags.Flags;
 
 import java.util.ArrayList;
+import java.util.Collection;
 import java.util.Collections;
 import java.util.HashMap;
 import java.util.List;
@@ -516,8 +519,8 @@
             // Check status hints image for cross user access
             if (parcelableConference.getStatusHints() != null) {
                 Icon icon = parcelableConference.getStatusHints().getIcon();
-                parcelableConference.getStatusHints().setIcon(StatusHints.
-                        validateAccountIconUserBoundary(icon, callingUserHandle));
+                parcelableConference.getStatusHints().setIcon(StatusHints
+                        .validateAccountIconUserBoundary(icon, callingUserHandle));
             }
 
             if (parcelableConference.getConnectElapsedTimeMillis() != 0
@@ -992,6 +995,12 @@
                             connectIdToCheck = callId;
                         }
 
+                        // Check status hints image for cross user access
+                        if (connection.getStatusHints() != null) {
+                            Icon icon = connection.getStatusHints().getIcon();
+                            connection.getStatusHints().setIcon(StatusHints.
+                                    validateAccountIconUserBoundary(icon, userHandle));
+                        }
                         // Handle the case where an existing connection was added by Telephony via
                         // a connection manager.  The remote connection service API does not include
                         // the ability to specify a parent connection when adding an existing
@@ -1030,14 +1039,6 @@
                                     connection.getCallDirection(),
                                     connection.getCallerNumberVerificationStatus());
                         }
-
-                        // Check status hints image for cross user access
-                        if (connection.getStatusHints() != null) {
-                            Icon icon = connection.getStatusHints().getIcon();
-                            connection.getStatusHints().setIcon(StatusHints.
-                                    validateAccountIconUserBoundary(icon, userHandle));
-                        }
-
                         // Check to see if this Connection has already been added.
                         Call alreadyAddedConnection = mCallsManager
                                 .getAlreadyAddedConnection(connectIdToCheck);
@@ -1350,6 +1351,7 @@
     private final CallsManager mCallsManager;
     private final AppOpsManager mAppOpsManager;
     private final Context mContext;
+    private final FeatureFlags mFlags;
 
     private ConnectionServiceFocusManager.ConnectionServiceFocusListener mConnSvrFocusListener;
 
@@ -1371,8 +1373,10 @@
             CallsManager callsManager,
             Context context,
             TelecomSystem.SyncRoot lock,
-            UserHandle userHandle) {
-        super(ConnectionService.SERVICE_INTERFACE, componentName, context, lock, userHandle);
+            UserHandle userHandle,
+            FeatureFlags featureFlags) {
+        super(ConnectionService.SERVICE_INTERFACE, componentName, context, lock, userHandle,
+                featureFlags);
         mConnectionServiceRepository = connectionServiceRepository;
         phoneAccountRegistrar.addListener(new PhoneAccountRegistrar.Listener() {
             // TODO -- Upon changes to PhoneAccountRegistrar, need to re-wire connections
@@ -1382,6 +1386,7 @@
         mCallsManager = callsManager;
         mAppOpsManager = (AppOpsManager) context.getSystemService(Context.APP_OPS_SERVICE);
         mContext = context;
+        mFlags = featureFlags;
     }
 
     /** See {@link IConnectionService#addConnectionServiceAdapter}. */
@@ -1595,7 +1600,6 @@
                         .setParticipants(call.getParticipants())
                         .setIsAdhocConferenceCall(call.isAdhocConferenceCall())
                         .build();
-
                 try {
                     mServiceInterface.createConference(
                             call.getConnectionManagerPhoneAccount(),
@@ -1604,7 +1608,6 @@
                             call.shouldAttachToExistingConnection(),
                             call.isUnknown(),
                             Log.getExternalSession(TELECOM_ABBREVIATION));
-
                 } catch (RemoteException e) {
                     Log.e(this, e, "Failure to createConference -- %s", getComponentName());
                     mPendingResponses.remove(callId).handleCreateConferenceFailure(
@@ -1697,7 +1700,6 @@
                         .setRttPipeFromInCall(call.getInCallToCsRttPipeForCs())
                         .setRttPipeToInCall(call.getCsToInCallRttPipeForCs())
                         .build();
-
                 try {
                     mServiceInterface.createConnection(
                             call.getConnectionManagerPhoneAccount(),
@@ -2391,6 +2393,7 @@
         BindCallback callback = new BindCallback() {
             @Override
             public void onSuccess() {
+                if (!isServiceValid("connectionServiceFocusLost")) return;
                 try {
                     mServiceInterface.connectionServiceFocusLost(
                             Log.getExternalSession(TELECOM_ABBREVIATION));
@@ -2410,6 +2413,7 @@
         BindCallback callback = new BindCallback() {
             @Override
             public void onSuccess() {
+                if (!isServiceValid("connectionServiceFocusGained")) return;
                 try {
                     mServiceInterface.connectionServiceFocusGained(
                             Log.getExternalSession(TELECOM_ABBREVIATION));
@@ -2488,12 +2492,11 @@
      */
     private void handleConnectionServiceDeath() {
         if (!mPendingResponses.isEmpty()) {
-            CreateConnectionResponse[] responses = mPendingResponses.values().toArray(
-                    new CreateConnectionResponse[mPendingResponses.values().size()]);
+            Collection<CreateConnectionResponse> responses = mPendingResponses.values();
             mPendingResponses.clear();
-            for (int i = 0; i < responses.length; i++) {
-                responses[i].handleCreateConnectionFailure(
-                        new DisconnectCause(DisconnectCause.ERROR, "CS_DEATH"));
+            for (CreateConnectionResponse response : responses) {
+                response.handleCreateConnectionFailure(new DisconnectCause(DisconnectCause.ERROR,
+                        "CS_DEATH"));
             }
         }
         mCallIdMapper.clear();
@@ -2537,7 +2540,7 @@
                 isCallerConnectionManager = true;
             }
             ConnectionServiceWrapper service = mConnectionServiceRepository.getService(
-                    handle.getComponentName(), handle.getUserHandle());
+                    handle.getComponentName(), handle.getUserHandle(), mFlags);
             if (service != null && service != this) {
                 simServices.add(service);
             } else {
diff --git a/src/com/android/server/telecom/CreateConnectionProcessor.java b/src/com/android/server/telecom/CreateConnectionProcessor.java
index 19691c1..f5b257d 100644
--- a/src/com/android/server/telecom/CreateConnectionProcessor.java
+++ b/src/com/android/server/telecom/CreateConnectionProcessor.java
@@ -32,6 +32,8 @@
 // TODO: Needed for move to system service: import com.android.internal.R;
 
 import com.android.internal.annotations.VisibleForTesting;
+import com.android.server.telecom.flags.Flags;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -125,6 +127,7 @@
     private DisconnectCause mLastErrorDisconnectCause;
     private final PhoneAccountRegistrar mPhoneAccountRegistrar;
     private final Context mContext;
+    private final FeatureFlags mFlags;
     private CreateConnectionTimeout mTimeout;
     private ConnectionServiceWrapper mService;
     private int mConnectionAttempt;
@@ -132,7 +135,8 @@
     @VisibleForTesting
     public CreateConnectionProcessor(
             Call call, ConnectionServiceRepository repository, CreateConnectionResponse response,
-            PhoneAccountRegistrar phoneAccountRegistrar, Context context) {
+            PhoneAccountRegistrar phoneAccountRegistrar, Context context,
+            FeatureFlags featureFlags) {
         Log.v(this, "CreateConnectionProcessor created for Call = %s", call);
         mCall = call;
         mRepository = repository;
@@ -140,6 +144,7 @@
         mPhoneAccountRegistrar = phoneAccountRegistrar;
         mContext = context;
         mConnectionAttempt = 0;
+        mFlags = featureFlags;
     }
 
     boolean isProcessingComplete() {
@@ -239,7 +244,7 @@
             Log.i(this, "Trying attempt %s", attempt);
             PhoneAccountHandle phoneAccount = attempt.connectionManagerPhoneAccount;
             mService = mRepository.getService(phoneAccount.getComponentName(),
-                    phoneAccount.getUserHandle());
+                    phoneAccount.getUserHandle(), mFlags);
             if (mService == null) {
                 Log.i(this, "Found no connection service for attempt %s", attempt);
                 attemptNextPhoneAccount();
@@ -247,7 +252,25 @@
                 mConnectionAttempt++;
                 mCall.setConnectionManagerPhoneAccount(attempt.connectionManagerPhoneAccount);
                 mCall.setTargetPhoneAccount(attempt.targetPhoneAccount);
-                mCall.setConnectionService(mService);
+                if (mFlags.updatedRcsCallCountTracking()) {
+                    if (Objects.equals(attempt.connectionManagerPhoneAccount,
+                            attempt.targetPhoneAccount)) {
+                        mCall.setConnectionService(mService);
+                    } else {
+                        PhoneAccountHandle remotePhoneAccount = attempt.targetPhoneAccount;
+                        ConnectionServiceWrapper mRemoteService =
+                                mRepository.getService(remotePhoneAccount.getComponentName(),
+                                remotePhoneAccount.getUserHandle(), mFlags);
+                        if (mRemoteService == null) {
+                            mCall.setConnectionService(mService);
+                        } else {
+                            Log.v(this, "attemptNextPhoneAccount Setting RCS = %s", mRemoteService);
+                            mCall.setConnectionService(mService, mRemoteService);
+                        }
+                    }
+                } else {
+                    mCall.setConnectionService(mService);
+                }
                 setTimeoutIfNeeded(mService, attempt);
                 if (mCall.isIncoming()) {
                     if (mCall.isAdhocConferenceCall()) {
diff --git a/src/com/android/server/telecom/EmergencyCallDiagnosticLogger.java b/src/com/android/server/telecom/EmergencyCallDiagnosticLogger.java
index af79da3..09e927c 100644
--- a/src/com/android/server/telecom/EmergencyCallDiagnosticLogger.java
+++ b/src/com/android/server/telecom/EmergencyCallDiagnosticLogger.java
@@ -156,25 +156,26 @@
         List<Integer> dataCollectionTypes = getDataCollectionTypes(reason);
         boolean invokeTelephonyPersistApi = false;
         CallEventTimestamps ts = mEmergencyCallsMap.get(call);
-        EmergencyCallDiagnosticParams dp =
-                new EmergencyCallDiagnosticParams();
+        EmergencyCallDiagnosticParams.Builder callDiagnosticBuilder =
+                new EmergencyCallDiagnosticParams.Builder();
         for (Integer dataCollectionType : dataCollectionTypes) {
             switch (dataCollectionType) {
                 case COLLECTION_TYPE_TELECOM_STATE:
                     if (isTelecomDumpCollectionEnabled()) {
-                        dp.setTelecomDumpSysCollection(true);
+                        callDiagnosticBuilder.setTelecomDumpSysCollectionEnabled(true);
                         invokeTelephonyPersistApi = true;
                     }
                     break;
                 case COLLECTION_TYPE_TELEPHONY_STATE:
                     if (isTelephonyDumpCollectionEnabled()) {
-                        dp.setTelephonyDumpSysCollection(true);
+                        callDiagnosticBuilder.setTelephonyDumpSysCollectionEnabled(true);
                         invokeTelephonyPersistApi = true;
                     }
                     break;
                 case COLLECTION_TYPE_LOGCAT_BUFFERS:
                     if (isLogcatCollectionEnabled()) {
-                        dp.setLogcatCollection(true, ts.getCallCreatedTime());
+                        callDiagnosticBuilder.setLogcatCollectionStartTimeMillis(
+                                ts.getCallCreatedTime());
                         invokeTelephonyPersistApi = true;
                     }
                     break;
@@ -191,6 +192,7 @@
                 default:
             }
         }
+        EmergencyCallDiagnosticParams dp = callDiagnosticBuilder.build();
         if (invokeTelephonyPersistApi) {
             mAsyncTaskExecutor.execute(new Runnable() {
                 @Override
diff --git a/src/com/android/server/telecom/InCallController.java b/src/com/android/server/telecom/InCallController.java
index d5689ae..1946f71 100644
--- a/src/com/android/server/telecom/InCallController.java
+++ b/src/com/android/server/telecom/InCallController.java
@@ -22,7 +22,9 @@
 import android.Manifest;
 import android.annotation.NonNull;
 import android.annotation.Nullable;
+import android.app.ActivityManager;
 import android.app.AppOpsManager;
+import android.app.KeyguardManager;
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.content.AttributionSource;
@@ -47,7 +49,6 @@
 import android.os.Trace;
 import android.os.UserHandle;
 import android.os.UserManager;
-import android.permission.PermissionManager;
 import android.telecom.CallAudioState;
 import android.telecom.CallEndpoint;
 import android.telecom.ConnectionService;
@@ -66,6 +67,7 @@
 import com.android.internal.util.ArrayUtils;
 import com.android.internal.util.IndentingPrintWriter;
 import com.android.server.telecom.SystemStateHelper.SystemStateListener;
+import com.android.server.telecom.flags.FeatureFlags;
 import com.android.server.telecom.ui.NotificationChannelManager;
 
 import java.util.ArrayList;
@@ -80,6 +82,7 @@
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.TimeUnit;
 import java.util.stream.Collectors;
+import java.util.stream.Stream;
 
 /**
  * Binds to {@link IInCallService} and provides the service to {@link CallsManager} through which it
@@ -100,6 +103,8 @@
     public static final String SET_IN_CALL_ADAPTER_ERROR_MSG =
             "Exception thrown while setting the in-call adapter.";
 
+    private final com.android.internal.telephony.flags.FeatureFlags mTelephonyFeatureFlags;
+
     @VisibleForTesting
     public void setAnomalyReporterAdapter(AnomalyReporterAdapter mAnomalyReporterAdapter){
         mAnomalyReporter = mAnomalyReporterAdapter;
@@ -1237,11 +1242,22 @@
 
     private ArraySet<String> mAllCarrierPrivilegedApps = new ArraySet<>();
     private ArraySet<String> mActiveCarrierPrivilegedApps = new ArraySet<>();
+    private FeatureFlags mFeatureFlags;
 
     public InCallController(Context context, TelecomSystem.SyncRoot lock, CallsManager callsManager,
             SystemStateHelper systemStateHelper, DefaultDialerCache defaultDialerCache,
             Timeouts.Adapter timeoutsAdapter, EmergencyCallHelper emergencyCallHelper,
-            CarModeTracker carModeTracker, ClockProxy clockProxy) {
+            CarModeTracker carModeTracker, ClockProxy clockProxy, FeatureFlags featureFlags) {
+      this(context, lock, callsManager, systemStateHelper, defaultDialerCache, timeoutsAdapter,
+              emergencyCallHelper, carModeTracker, clockProxy, featureFlags, null);
+    }
+
+    @VisibleForTesting
+    public InCallController(Context context, TelecomSystem.SyncRoot lock, CallsManager callsManager,
+            SystemStateHelper systemStateHelper, DefaultDialerCache defaultDialerCache,
+            Timeouts.Adapter timeoutsAdapter, EmergencyCallHelper emergencyCallHelper,
+            CarModeTracker carModeTracker, ClockProxy clockProxy, FeatureFlags featureFlags,
+            com.android.internal.telephony.flags.FeatureFlags telephonyFeatureFlags) {
         mContext = context;
         mAppOpsManager = context.getSystemService(AppOpsManager.class);
         mSensorPrivacyManager = context.getSystemService(SensorPrivacyManager.class);
@@ -1258,6 +1274,13 @@
         IntentFilter userAddedFilter = new IntentFilter(Intent.ACTION_USER_ADDED);
         userAddedFilter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY);
         mContext.registerReceiver(mUserAddedReceiver, userAddedFilter);
+        mFeatureFlags = featureFlags;
+        if (telephonyFeatureFlags != null) {
+            mTelephonyFeatureFlags = telephonyFeatureFlags;
+        } else {
+            mTelephonyFeatureFlags =
+                    new com.android.internal.telephony.flags.FeatureFlagsImpl();
+        }
     }
 
     private void restrictPhoneCallOps() {
@@ -1402,17 +1425,31 @@
     @Override
     public void onCallRemoved(Call call) {
         Log.i(this, "onCallRemoved: %s", call);
-        if (mCallsManager.getCalls().isEmpty()) {
+        // Instead of checking if there are no active calls, we should check if there any calls with
+        // the same associated user returned from getUserFromCall. For instance, it's possible to
+        // have calls coexist on the personal profile and work profile, in which case, we would only
+        // remove the ICS connection for the user associated with the call to be disconnected.
+        UserHandle userFromCall = getUserFromCall(call);
+        Stream<Call> callsAssociatedWithUserFromCall = mCallsManager.getCalls().stream()
+                .filter((c) -> getUserFromCall(c).equals(userFromCall));
+        boolean isCallCountZero = mFeatureFlags.associatedUserRefactorForWorkProfile()
+                ? callsAssociatedWithUserFromCall.count() == 0
+                : mCallsManager.getCalls().isEmpty();
+        if (isCallCountZero) {
             /** Let's add a 2 second delay before we send unbind to the services to hopefully
              *  give them enough time to process all the pending messages.
              */
             mHandler.postDelayed(new Runnable("ICC.oCR", mLock) {
                 @Override
                 public void loggedRun() {
-                    // Check again to make sure there are no active calls.
-                    if (mCallsManager.getCalls().isEmpty()) {
-                        unbindFromServices(getUserFromCall(call));
-
+                    // Check again to make sure there are no active calls for the associated user.
+                    Stream<Call> callsAssociatedWithUserFromCall = mCallsManager.getCalls().stream()
+                            .filter((c) -> getUserFromCall(c).equals(userFromCall));
+                    boolean isCallCountZero = mFeatureFlags.associatedUserRefactorForWorkProfile()
+                            ? callsAssociatedWithUserFromCall.count() == 0
+                            : mCallsManager.getCalls().isEmpty();
+                    if (isCallCountZero) {
+                        unbindFromServices(userFromCall);
                         mEmergencyCallHelper.maybeRevokeTemporaryLocationPermission();
                     }
                 }
@@ -1690,6 +1727,29 @@
 
     @VisibleForTesting
     public void bringToForeground(boolean showDialpad, UserHandle callingUser) {
+        KeyguardManager keyguardManager = mContext.getSystemService(KeyguardManager.class);
+        boolean isLockscreenRestricted = keyguardManager != null
+                && keyguardManager.isKeyguardLocked();
+        UserHandle currentUser = mCallsManager.getCurrentUserHandle();
+        // Handle cases when calls are placed from the keyguard UI screen, which operates under
+        // the admin user. This needs to account for emergency calls placed from secondary/guest
+        // users as well as the work profile. Once the screen is locked, the user should be able to
+        // return to the call (from the keyguard UI).
+        if (mFeatureFlags.eccKeyguard() && mCallsManager.isInEmergencyCall()
+                && isLockscreenRestricted && !mInCallServices.containsKey(callingUser)) {
+            // If screen is locked and the current user is the system, query calls for the work
+            // profile user, if available. Otherwise, the user is in the secondary/guest profile,
+            // so we can default to the system user.
+            if (currentUser.isSystem()) {
+                UserManager um = mContext.getSystemService(UserManager.class);
+                UserHandle workProfileUser = findChildManagedProfileUser(currentUser, um);
+                boolean hasWorkCalls = mCallsManager.getCalls().stream()
+                        .filter((c) -> getUserFromCall(c).equals(workProfileUser)).count() > 0;
+                callingUser = hasWorkCalls ? workProfileUser : currentUser;
+            } else {
+                callingUser = currentUser;
+            }
+        }
         if (mInCallServices.containsKey(callingUser)) {
             for (IInCallService inCallService : mInCallServices.get(callingUser).values()) {
                 try {
@@ -1805,6 +1865,7 @@
      * Unbinds an existing bound connection to the in-call app.
      */
     public void unbindFromServices(UserHandle userHandle) {
+        Log.i(this, "Unbinding from services for user %s", userHandle);
         try {
             mContext.unregisterReceiver(mPackageChangedReceiver);
         } catch (IllegalArgumentException e) {
@@ -1832,13 +1893,14 @@
     @VisibleForTesting
     public void bindToServices(Call call) {
         UserHandle userFromCall = getUserFromCall(call);
-        UserHandle parentUser = null;
         UserManager um = mContext.getSystemService(UserManager.class);
-
-        if (um.isManagedProfile(userFromCall.getIdentifier())) {
+        UserHandle parentUser = mTelephonyFeatureFlags.workProfileApiSplit()
+                ? um.getProfileParent(userFromCall) : null;
+        if (!mTelephonyFeatureFlags.workProfileApiSplit()
+                && um.isManagedProfile(userFromCall.getIdentifier())) {
             parentUser = um.getProfileParent(userFromCall);
-            Log.i(this, "child:%s  parent:%s", userFromCall, parentUser);
         }
+        Log.i(this, "child:%s  parent:%s", userFromCall, parentUser);
 
         if (!mInCallServiceConnections.containsKey(userFromCall)) {
             InCallServiceConnection dialerInCall = null;
@@ -1889,7 +1951,8 @@
 
         // Actually try binding to the UI InCallService.
         if (inCallServiceConnection.connect(call) ==
-                InCallServiceConnection.CONNECTION_SUCCEEDED || call.isSelfManaged()) {
+                InCallServiceConnection.CONNECTION_SUCCEEDED || (call != null
+                && call.isSelfManaged())) {
             // Only connect to the non-ui InCallServices if we actually connected to the main UI
             // one, or if the call is self-managed (in which case we'd still want to keep Wear, BT,
             // etc. informed.
@@ -1910,19 +1973,20 @@
 
     private void updateNonUiInCallServices(Call call) {
         UserHandle userFromCall = getUserFromCall(call);
-        UserHandle parentUser = null;
 
         UserManager um = mContext.getSystemService(UserManager.class);
-        if(um.isManagedProfile(userFromCall.getIdentifier()))
-        {
+        UserHandle parentUser = mTelephonyFeatureFlags.workProfileApiSplit()
+                ? um.getProfileParent(userFromCall) : null;
+
+        if (!mTelephonyFeatureFlags.workProfileApiSplit()
+                && um.isManagedProfile(userFromCall.getIdentifier())) {
             parentUser = um.getProfileParent(userFromCall);
         }
 
         List<InCallServiceInfo> nonUIInCallComponents =
                 getInCallServiceComponents(userFromCall, IN_CALL_SERVICE_TYPE_NON_UI);
         List<InCallServiceInfo> nonUIInCallComponentsForParent = new ArrayList<>();
-        if(parentUser != null)
-        {
+        if(parentUser != null) {
             //also get Non-UI services using parent handle.
             nonUIInCallComponentsForParent =
                     getInCallServiceComponents(parentUser, IN_CALL_SERVICE_TYPE_NON_UI);
@@ -2121,7 +2185,7 @@
 
                 ComponentName foundComponentName =
                         new ComponentName(serviceInfo.packageName, serviceInfo.name);
-                if (requestedType == IN_CALL_SERVICE_TYPE_NON_UI) {
+                if (currentType == IN_CALL_SERVICE_TYPE_NON_UI) {
                     mKnownNonUiInCallServices.add(foundComponentName);
                 }
 
@@ -2293,7 +2357,9 @@
         }
 
         // Upon successful connection, send the state of the world to the service.
-        List<Call> calls = orderCallsWithChildrenFirst(mCallsManager.getCalls());
+        List<Call> calls = orderCallsWithChildrenFirst(mCallsManager.getCalls().stream().filter(
+                call -> getUserFromCall(call).equals(userHandle))
+                .collect(Collectors.toUnmodifiableList()));
         Log.i(this, "Adding %s calls to InCallService after onConnected: %s, including external " +
                 "calls", calls.size(), info.getComponentName());
         int numCallsSent = 0;
@@ -2430,10 +2496,15 @@
                 try {
                     inCallService.updateCall(
                             sanitizeParcelableCallForService(info, parcelableCall));
-                } catch (RemoteException ignored) {
+                } catch (RemoteException exception) {
+                    Log.w(this, "Call status update did not send to: "
+                                + componentName +" successfully with error " + exception);
                 }
             }
             Log.i(this, "Components updated: %s", componentsUpdated);
+        } else {
+            Log.i(this,
+                    "Unable to update call. InCallService not found for user: %s", userFromCall);
         }
     }
 
@@ -2872,8 +2943,11 @@
         } else {
             UserHandle userFromCall = call.getAssociatedUser();
             UserManager userManager = mContext.getSystemService(UserManager.class);
-            // Emergency call should never be blocked, so if the user associated with call is in
-            // quite mode, use the primary user for the emergency call.
+            // Emergency call should never be blocked, so if the user associated with the target
+            // phone account handle user is in quiet mode, use the current user for the ecall.
+            // Note, that this only applies to incoming calls that are received on assigned
+            // sims (i.e. work sim), where the associated user would be the target phone account
+            // handle user.
             if ((call.isEmergencyCall() || call.isInECBM())
                     && (userManager.isQuietModeEnabled(userFromCall)
                     // We should also account for secondary/guest users where the profile may not
@@ -2885,4 +2959,25 @@
             return userFromCall;
         }
     }
+
+    /**
+     * Useful for debugging purposes and called on the command line via
+     * an "adb shell telecom command".
+     *
+     * @return true if a particular non-ui InCallService package is bound in a call.
+     */
+    public boolean isNonUiInCallServiceBound(String packageName) {
+        for (NonUIInCallServiceConnectionCollection ics : mNonUIInCallServiceConnections.values()) {
+            for (InCallServiceBindingConnection connection : ics.getSubConnections()) {
+                InCallServiceInfo serviceInfo = connection.mInCallServiceInfo;
+                Log.i(this, "isNonUiInCallServiceBound: found serviceInfo=[%s]", serviceInfo);
+                if (serviceInfo != null &&
+                        serviceInfo.mComponentName.getPackageName().contains(packageName)) {
+                    Log.i(this, "isNonUiInCallServiceBound: found target package");
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
 }
diff --git a/src/com/android/server/telecom/InCallTonePlayer.java b/src/com/android/server/telecom/InCallTonePlayer.java
index 3cc4aac..a5942f0 100644
--- a/src/com/android/server/telecom/InCallTonePlayer.java
+++ b/src/com/android/server/telecom/InCallTonePlayer.java
@@ -69,8 +69,8 @@
             mCallAudioManager = callAudioManager;
         }
 
-        public InCallTonePlayer createPlayer(int tone) {
-            return new InCallTonePlayer(tone, mCallAudioManager,
+        public InCallTonePlayer createPlayer(Call call, int tone) {
+            return new InCallTonePlayer(call, tone, mCallAudioManager,
                     mCallAudioRoutePeripheralAdapter, mLock, mToneGeneratorFactory,
                     mMediaPlayerFactory, mAudioManagerAdapter);
         }
@@ -212,6 +212,7 @@
     private Session mSession;
     private final Object mSessionLock = new Object();
 
+    private final Call mCall;
     private final ToneGeneratorFactory mToneGenerator;
     private final MediaPlayerFactory mMediaPlayerFactory;
     private final AudioManagerAdapter mAudioManagerAdapter;
@@ -228,6 +229,7 @@
      * @param toneId ID of the tone to play, see TONE_* constants.
      */
     private InCallTonePlayer(
+            Call call,
             int toneId,
             CallAudioManager callAudioManager,
             CallAudioRoutePeripheralAdapter callAudioRoutePeripheralAdapter,
@@ -235,6 +237,7 @@
             ToneGeneratorFactory toneGeneratorFactory,
             MediaPlayerFactory mediaPlayerFactor,
             AudioManagerAdapter audioManagerAdapter) {
+        mCall = call;
         mState = STATE_OFF;
         mToneId = toneId;
         mCallAudioManager = callAudioManager;
@@ -476,7 +479,7 @@
         }
 
         if (sTonesPlaying.incrementAndGet() == 1) {
-            mCallAudioManager.setIsTonePlaying(true);
+            mCallAudioManager.setIsTonePlaying(mCall, true);
         }
 
         synchronized (mSessionLock) {
@@ -524,7 +527,7 @@
                     Log.i(InCallTonePlayer.this,
                             "cleanUpTonePlayer(): tonesPlaying=%d, tone completed", newToneCount);
                     if (mCallAudioManager != null) {
-                        mCallAudioManager.setIsTonePlaying(false);
+                        mCallAudioManager.setIsTonePlaying(mCall, false);
                     } else {
                         Log.w(InCallTonePlayer.this,
                                 "cleanUpTonePlayer(): mCallAudioManager is null!");
diff --git a/src/com/android/server/telecom/MissedCallNotifier.java b/src/com/android/server/telecom/MissedCallNotifier.java
index 0e5a287..b0a7c8e 100644
--- a/src/com/android/server/telecom/MissedCallNotifier.java
+++ b/src/com/android/server/telecom/MissedCallNotifier.java
@@ -16,6 +16,7 @@
 
 package com.android.server.telecom;
 
+import android.annotation.Nullable;
 import android.net.Uri;
 import android.os.UserHandle;
 import android.telecom.PhoneAccountHandle;
@@ -85,7 +86,7 @@
 
     void clearMissedCalls(UserHandle userHandle);
 
-    void showMissedCallNotification(CallInfo call);
+    void showMissedCallNotification(CallInfo call, @Nullable Uri uri);
 
     void reloadAfterBootComplete(CallerInfoLookupHelper callerInfoLookupHelper,
             CallInfoFactory callInfoFactory);
diff --git a/src/com/android/server/telecom/NewOutgoingCallIntentBroadcaster.java b/src/com/android/server/telecom/NewOutgoingCallIntentBroadcaster.java
index 3b402b1..6070baa 100644
--- a/src/com/android/server/telecom/NewOutgoingCallIntentBroadcaster.java
+++ b/src/com/android/server/telecom/NewOutgoingCallIntentBroadcaster.java
@@ -16,6 +16,7 @@
 
 package com.android.server.telecom;
 
+import android.Manifest;
 import android.app.Activity;
 import android.app.AppOpsManager;
 import android.app.BroadcastOptions;
@@ -37,6 +38,7 @@
 import android.text.TextUtils;
 
 import com.android.internal.annotations.VisibleForTesting;
+import com.android.server.telecom.flags.FeatureFlags;
 import com.android.server.telecom.callredirection.CallRedirectionProcessor;
 
 // TODO: Needed for move to system service: import com.android.internal.R;
@@ -77,6 +79,7 @@
     private final TelecomSystem.SyncRoot mLock;
     private final DefaultDialerCache mDefaultDialerCache;
     private final MmiUtils mMmiUtils;
+    private final FeatureFlags mFeatureFlags;
 
     /*
      * Whether or not the outgoing call intent originated from the default phone application. If
@@ -100,7 +103,8 @@
     @VisibleForTesting
     public NewOutgoingCallIntentBroadcaster(Context context, CallsManager callsManager,
             Intent intent, PhoneNumberUtilsAdapter phoneNumberUtilsAdapter,
-            boolean isDefaultPhoneApp, DefaultDialerCache defaultDialerCache, MmiUtils mmiUtils) {
+            boolean isDefaultPhoneApp, DefaultDialerCache defaultDialerCache, MmiUtils mmiUtils,
+            FeatureFlags featureFlags) {
         mContext = context;
         mCallsManager = callsManager;
         mIntent = intent;
@@ -109,6 +113,7 @@
         mLock = mCallsManager.getLock();
         mDefaultDialerCache = defaultDialerCache;
         mMmiUtils = mmiUtils;
+        mFeatureFlags = featureFlags;
     }
 
     /**
@@ -128,7 +133,8 @@
                     // Once the NEW_OUTGOING_CALL broadcast is finished, the resultData is
                     // used as the actual number to call. (If null, no call will be placed.)
                     String resultNumber = getResultData();
-                    Log.i(this, "Received new-outgoing-call-broadcast for %s with data %s", mCall,
+                    Log.i(NewOutgoingCallIntentBroadcaster.this,
+                            "Received new-outgoing-call-broadcast for %s with data %s", mCall,
                             Log.pii(resultNumber));
 
                     boolean endEarly = false;
@@ -320,6 +326,7 @@
         String scheme = mPhoneNumberUtilsAdapter.isUriNumber(number)
                 ? PhoneAccount.SCHEME_SIP : PhoneAccount.SCHEME_TEL;
         result.callingAddress = Uri.fromParts(scheme, number, null);
+
         return result;
     }
 
@@ -351,14 +358,57 @@
 
     public void processCall(Call call, CallDisposition disposition) {
         mCall = call;
+
+        // If the new outgoing call broadast doesn't block, trigger the legacy process call
+        // behavior and exit out here.
+        if (!mFeatureFlags.isNewOutgoingCallBroadcastUnblocking()) {
+            legacyProcessCall(disposition);
+            return;
+        }
+        boolean callRedirectionWithService = false;
+        // Only try to do redirection if it was requested and we're not calling immediately.
+        // We can expect callImmediately to be true for emergency calls and voip calls.
+        if (disposition.requestRedirection && !disposition.callImmediately) {
+            CallRedirectionProcessor callRedirectionProcessor = new CallRedirectionProcessor(
+                    mContext, mCallsManager, mCall, disposition.callingAddress,
+                    mCallsManager.getPhoneAccountRegistrar(),
+                    getGateWayInfoFromIntent(mIntent, mIntent.getData()),
+                    mIntent.getBooleanExtra(TelecomManager.EXTRA_START_CALL_WITH_SPEAKERPHONE,
+                            false),
+                    mIntent.getIntExtra(TelecomManager.EXTRA_START_CALL_WITH_VIDEO_STATE,
+                            VideoProfile.STATE_AUDIO_ONLY));
+            /**
+             * If there is an available {@link android.telecom.CallRedirectionService}, use the
+             * {@link CallRedirectionProcessor} to perform call redirection instead of using
+             * broadcasting.
+             */
+            callRedirectionWithService = callRedirectionProcessor
+                    .canMakeCallRedirectionWithServiceAsUser(mCall.getAssociatedUser());
+            if (callRedirectionWithService) {
+                callRedirectionProcessor.performCallRedirection(mCall.getAssociatedUser());
+            }
+        }
+
+        // If no redirection was kicked off, place the call now.
+        if (!callRedirectionWithService) {
+            callImmediately(disposition);
+        }
+
+        // Finally, send the non-blocking broadcast if we're supposed to (ie for any non-voip call).
+        if (disposition.sendBroadcast) {
+            UserHandle targetUser = mCall.getAssociatedUser();
+            broadcastIntent(mIntent, disposition.number, false /* receiverRequired */, targetUser);
+        }
+    }
+
+    /**
+     * The legacy non-flagged version of processing a call.  Although there is some code duplication
+     * if makes the new flow cleaner to read.
+     * @param disposition
+     */
+    private void legacyProcessCall(CallDisposition disposition) {
         if (disposition.callImmediately) {
-            boolean speakerphoneOn = mIntent.getBooleanExtra(
-                    TelecomManager.EXTRA_START_CALL_WITH_SPEAKERPHONE, false);
-            int videoState = mIntent.getIntExtra(
-                    TelecomManager.EXTRA_START_CALL_WITH_VIDEO_STATE,
-                    VideoProfile.STATE_AUDIO_ONLY);
-            placeOutgoingCallImmediately(mCall, disposition.callingAddress, null,
-                    speakerphoneOn, videoState);
+            callImmediately(disposition);
 
             // Don't return but instead continue and send the ACTION_NEW_OUTGOING_CALL broadcast
             // so that third parties can still inspect (but not intercept) the outgoing call. When
@@ -390,13 +440,26 @@
 
         if (disposition.sendBroadcast) {
             UserHandle targetUser = mCall.getAssociatedUser();
-            Log.i(this, "Sending NewOutgoingCallBroadcast for %s to %s", mCall, targetUser);
             broadcastIntent(mIntent, disposition.number,
                     !disposition.callImmediately && !callRedirectionWithService, targetUser);
         }
     }
 
     /**
+     * Place a call immediately.
+     * @param disposition The disposition; used for retrieving the address of the call.
+     */
+    private void callImmediately(CallDisposition disposition) {
+        boolean speakerphoneOn = mIntent.getBooleanExtra(
+                TelecomManager.EXTRA_START_CALL_WITH_SPEAKERPHONE, false);
+        int videoState = mIntent.getIntExtra(
+                TelecomManager.EXTRA_START_CALL_WITH_VIDEO_STATE,
+                VideoProfile.STATE_AUDIO_ONLY);
+        placeOutgoingCallImmediately(mCall, disposition.callingAddress, null,
+                speakerphoneOn, videoState);
+    }
+
+    /**
      * Sends a new outgoing call ordered broadcast so that third party apps can cancel the
      * placement of the call or redirect it to a different number.
      *
@@ -415,28 +478,51 @@
         if (number != null) {
             broadcastIntent.putExtra(Intent.EXTRA_PHONE_NUMBER, number);
         }
-
-        // Force receivers of this broadcast intent to run at foreground priority because we
-        // want to finish processing the broadcast intent as soon as possible.
-        broadcastIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND
-                | Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND);
         Log.v(this, "Broadcasting intent: %s.", broadcastIntent);
 
         checkAndCopyProviderExtras(originalCallIntent, broadcastIntent);
 
-        final BroadcastOptions options = BroadcastOptions.makeBasic();
-        options.setBackgroundActivityStartsAllowed(true);
-        mContext.sendOrderedBroadcastAsUser(
-                broadcastIntent,
-                targetUser,
-                android.Manifest.permission.PROCESS_OUTGOING_CALLS,
-                AppOpsManager.OP_PROCESS_OUTGOING_CALLS,
-                options.toBundle(),
-                receiverRequired ? new NewOutgoingCallBroadcastIntentReceiver() : null,
-                null,  // scheduler
-                Activity.RESULT_OK,  // initialCode
-                number,  // initialData: initial value for the result data (number to be modified)
-                null);  // initialExtras
+        if (mFeatureFlags.isNewOutgoingCallBroadcastUnblocking()) {
+            // Where the new outgoing call broadcast is unblocking, do not give receiver FG priority
+            // and do not allow background activity starts.
+            broadcastIntent.addFlags(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND);
+            Log.i(this, "broadcastIntent: Sending non-blocking for %s to %s", mCall.getId(),
+                    targetUser);
+            if (mFeatureFlags.telecomResolveHiddenDependencies()) {
+                mContext.sendBroadcastAsUser(
+                        broadcastIntent,
+                        targetUser,
+                        Manifest.permission.PROCESS_OUTGOING_CALLS);
+            } else {
+                mContext.sendBroadcastAsUser(
+                        broadcastIntent,
+                        targetUser,
+                        android.Manifest.permission.PROCESS_OUTGOING_CALLS,
+                        AppOpsManager.OP_PROCESS_OUTGOING_CALLS);  // initialExtras
+            }
+        } else {
+            Log.i(this, "broadcastIntent: Sending ordered for %s to %s, waitForResult=%b",
+                    mCall.getId(), targetUser, receiverRequired);
+            final BroadcastOptions options = BroadcastOptions.makeBasic();
+            options.setBackgroundActivityStartsAllowed(true);
+            // Force receivers of this broadcast intent to run at foreground priority because we
+            // want to finish processing the broadcast intent as soon as possible.
+            broadcastIntent.addFlags(Intent.FLAG_RECEIVER_FOREGROUND
+                    | Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND);
+
+            mContext.sendOrderedBroadcastAsUser(
+                    broadcastIntent,
+                    targetUser,
+                    android.Manifest.permission.PROCESS_OUTGOING_CALLS,
+                    AppOpsManager.OP_PROCESS_OUTGOING_CALLS,
+                    options.toBundle(),
+                    receiverRequired ? new NewOutgoingCallBroadcastIntentReceiver() : null,
+                    null,  // scheduler
+                    Activity.RESULT_OK,  // initialCode
+                    number,  // initialData: initial value for the result data (number to be
+                             // modified)
+                    null);  // initialExtras
+        }
     }
 
     /**
diff --git a/src/com/android/server/telecom/ParcelableCallUtils.java b/src/com/android/server/telecom/ParcelableCallUtils.java
index 673b99a..c77e605 100644
--- a/src/com/android/server/telecom/ParcelableCallUtils.java
+++ b/src/com/android/server/telecom/ParcelableCallUtils.java
@@ -158,6 +158,10 @@
             properties |= android.telecom.Call.Details.PROPERTY_VOIP_AUDIO_MODE;
         }
 
+        if (call.isTransactionalCall()) {
+            properties |= android.telecom.Call.Details.PROPERTY_IS_TRANSACTIONAL;
+        }
+
         // If this is a single-SIM device, the "default SIM" will always be the only SIM.
         boolean isDefaultSmsAccount = phoneAccountRegistrar != null &&
                 phoneAccountRegistrar.isUserSelectedSmsPhoneAccount(call.getTargetPhoneAccount());
diff --git a/src/com/android/server/telecom/PhoneAccountRegistrar.java b/src/com/android/server/telecom/PhoneAccountRegistrar.java
index acf07e3..de73269 100644
--- a/src/com/android/server/telecom/PhoneAccountRegistrar.java
+++ b/src/com/android/server/telecom/PhoneAccountRegistrar.java
@@ -61,6 +61,7 @@
 import com.android.internal.util.IndentingPrintWriter;
 import com.android.internal.util.XmlUtils;
 import com.android.modules.utils.ModifiedUtf8;
+import com.android.server.telecom.flags.Flags;
 
 import org.xmlpull.v1.XmlPullParser;
 import org.xmlpull.v1.XmlPullParserException;
@@ -180,16 +181,19 @@
     private interface PhoneAccountRegistrarWriteLock {}
     private final PhoneAccountRegistrarWriteLock mWriteLock =
             new PhoneAccountRegistrarWriteLock() {};
+    private final com.android.internal.telephony.flags.FeatureFlags mTelephonyFeatureFlags;
 
     @VisibleForTesting
     public PhoneAccountRegistrar(Context context, TelecomSystem.SyncRoot lock,
-            DefaultDialerCache defaultDialerCache, AppLabelProxy appLabelProxy) {
-        this(context, lock, FILE_NAME, defaultDialerCache, appLabelProxy);
+            DefaultDialerCache defaultDialerCache, AppLabelProxy appLabelProxy,
+            com.android.internal.telephony.flags.FeatureFlags telephonyFeatureFlags) {
+        this(context, lock, FILE_NAME, defaultDialerCache, appLabelProxy, telephonyFeatureFlags);
     }
 
     @VisibleForTesting
     public PhoneAccountRegistrar(Context context, TelecomSystem.SyncRoot lock, String fileName,
-            DefaultDialerCache defaultDialerCache, AppLabelProxy appLabelProxy) {
+            DefaultDialerCache defaultDialerCache, AppLabelProxy appLabelProxy,
+            com.android.internal.telephony.flags.FeatureFlags telephonyFeatureFlags) {
 
         mAtomicFile = new AtomicFile(new File(context.getFilesDir(), fileName));
 
@@ -203,6 +207,13 @@
         mAppLabelProxy = appLabelProxy;
         mCurrentUserHandle = Process.myUserHandle();
 
+        if (telephonyFeatureFlags != null) {
+            mTelephonyFeatureFlags = telephonyFeatureFlags;
+        } else {
+            mTelephonyFeatureFlags =
+                    new com.android.internal.telephony.flags.FeatureFlagsImpl();
+        }
+
         // register context based receiver to clean up orphan phone accounts
         IntentFilter intentFilter = new IntentFilter(Intent.ACTION_MANAGED_PROFILE_REMOVED);
         intentFilter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY);
@@ -389,26 +400,62 @@
                             account.getGroupId()));
         }
 
-        // Potentially update the default voice subid in SubscriptionManager.
+        // Potentially update the default voice subid in SubscriptionManager so that Telephony and
+        // Telecom are in sync.
         int newSubId = accountHandle == null ? SubscriptionManager.INVALID_SUBSCRIPTION_ID :
                 getSubscriptionIdForPhoneAccount(accountHandle);
-        if (isSimAccount || accountHandle == null) {
-            int currentVoiceSubId = mSubscriptionManager.getDefaultVoiceSubscriptionId();
-            if (newSubId != currentVoiceSubId) {
-                Log.i(this, "setUserSelectedOutgoingPhoneAccount: update voice sub; "
-                        + "account=%s, subId=%d", accountHandle, newSubId);
-                mSubscriptionManager.setDefaultVoiceSubscriptionId(newSubId);
+        if (Flags.onlyUpdateTelephonyOnValidSubIds()) {
+            if (shouldUpdateTelephonyDefaultVoiceSubId(accountHandle, isSimAccount, newSubId)) {
+                updateDefaultVoiceSubId(newSubId, accountHandle);
             } else {
-                Log.i(this, "setUserSelectedOutgoingPhoneAccount: no change to voice sub");
+                Log.i(this, "setUserSelectedOutgoingPhoneAccount: %s is not a sub", accountHandle);
             }
         } else {
-            Log.i(this, "setUserSelectedOutgoingPhoneAccount: %s is not a sub", accountHandle);
+            if (isSimAccount || accountHandle == null) {
+                updateDefaultVoiceSubId(newSubId, accountHandle);
+            } else {
+                Log.i(this, "setUserSelectedOutgoingPhoneAccount: %s is not a sub", accountHandle);
+            }
         }
-
         write();
         fireDefaultOutgoingChanged();
     }
 
+    private void updateDefaultVoiceSubId(int newSubId, PhoneAccountHandle accountHandle){
+        int currentVoiceSubId = mSubscriptionManager.getDefaultVoiceSubscriptionId();
+        if (newSubId != currentVoiceSubId) {
+            Log.i(this, "setUserSelectedOutgoingPhoneAccount: update voice sub; "
+                    + "account=%s, subId=%d", accountHandle, newSubId);
+            mSubscriptionManager.setDefaultVoiceSubscriptionId(newSubId);
+        } else {
+            Log.i(this, "setUserSelectedOutgoingPhoneAccount: no change to voice sub");
+        }
+    }
+
+    // This helper is important for CTS testing.  [PhoneAccount]s created by Telecom in CTS are
+    // assigned a  subId value of INVALID_SUBSCRIPTION_ID (-1) by Telephony.  However, when
+    // Telephony has a default outgoing calling voice account of -1, that translates to no default
+    // account (user should be prompted to select an acct when making MOs).  In order to avoid
+    // Telephony clearing out the newly changed default [PhoneAccount] in Telecom, Telephony should
+    // not be updated. This situation will never occur in production since [PhoneAccount]s in
+    // production are assigned non-negative subId values.
+    private boolean shouldUpdateTelephonyDefaultVoiceSubId(PhoneAccountHandle phoneAccountHandle,
+            boolean isSimAccount, int newSubId) {
+        // user requests no call preference
+        if (phoneAccountHandle == null) {
+            return true;
+        }
+        // do not update Telephony if the newSubId is invalid
+        if (newSubId == SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
+            Log.w(this, "shouldUpdateTelephonyDefaultVoiceSubId: "
+                            + "invalid subId scenario, not updating Telephony. "
+                            + "phoneAccountHandle=[%s], isSimAccount=[%b], newSubId=[%s]",
+                    phoneAccountHandle, isSimAccount, newSubId);
+            return false;
+        }
+        return isSimAccount;
+    }
+
     boolean isUserSelectedSmsPhoneAccount(PhoneAccountHandle accountHandle) {
         return getSubscriptionIdForPhoneAccount(accountHandle) ==
                 SubscriptionManager.getDefaultSmsSubscriptionId();
@@ -660,6 +707,24 @@
         }
     }
 
+    private boolean isMatchedUser(PhoneAccount account, UserHandle userHandle) {
+        if (account == null) {
+            return false;
+        }
+
+        if (userHandle == null) {
+            Log.w(this, "userHandle is null in isVisibleForUser");
+            return false;
+        }
+
+        UserHandle phoneAccountUserHandle = account.getAccountHandle().getUserHandle();
+        if (phoneAccountUserHandle == null) {
+            return false;
+        }
+
+        return phoneAccountUserHandle.equals(userHandle);
+    }
+
     private boolean isVisibleForUser(PhoneAccount account, UserHandle userHandle,
             boolean acrossProfiles) {
         if (account == null) {
@@ -726,11 +791,11 @@
      */
     public List<PhoneAccountHandle> getAllPhoneAccountHandles(UserHandle userHandle,
             boolean crossUserAccess) {
-        return getPhoneAccountHandles(0, null, null, false, userHandle, crossUserAccess);
+        return getPhoneAccountHandles(0, null, null, false, userHandle, crossUserAccess, true);
     }
 
     public List<PhoneAccount> getAllPhoneAccounts(UserHandle userHandle, boolean crossUserAccess) {
-        return getPhoneAccounts(0, null, null, false, mCurrentUserHandle, crossUserAccess);
+        return getPhoneAccounts(0, null, null, false, mCurrentUserHandle, crossUserAccess, true);
     }
 
     /**
@@ -821,7 +886,7 @@
     public List<PhoneAccountHandle> getAllPhoneAccountHandlesForPackage(UserHandle userHandle,
             String packageName) {
         return getPhoneAccountHandles(0, null, packageName, true /* includeDisabled */, userHandle,
-                true /* crossUserAccess */);
+                true /* crossUserAccess */, true);
     }
 
     /**
@@ -1451,7 +1516,19 @@
             UserHandle userHandle,
             boolean crossUserAccess) {
         return getPhoneAccountHandles(capabilities, 0 /*excludedCapabilities*/, uriScheme,
-                packageName, includeDisabledAccounts, userHandle, crossUserAccess);
+                packageName, includeDisabledAccounts, userHandle, crossUserAccess, false);
+    }
+
+    private List<PhoneAccountHandle> getPhoneAccountHandles(
+            int capabilities,
+            String uriScheme,
+            String packageName,
+            boolean includeDisabledAccounts,
+            UserHandle userHandle,
+            boolean crossUserAccess,
+            boolean includeAll) {
+        return getPhoneAccountHandles(capabilities, 0 /*excludedCapabilities*/, uriScheme,
+                packageName, includeDisabledAccounts, userHandle, crossUserAccess, includeAll);
     }
 
     /**
@@ -1466,11 +1543,24 @@
             boolean includeDisabledAccounts,
             UserHandle userHandle,
             boolean crossUserAccess) {
+        return getPhoneAccountHandles(capabilities, excludedCapabilities, uriScheme, packageName,
+                includeDisabledAccounts, userHandle, crossUserAccess, false);
+    }
+
+    private List<PhoneAccountHandle> getPhoneAccountHandles(
+            int capabilities,
+            int excludedCapabilities,
+            String uriScheme,
+            String packageName,
+            boolean includeDisabledAccounts,
+            UserHandle userHandle,
+            boolean crossUserAccess,
+            boolean includeAll) {
         List<PhoneAccountHandle> handles = new ArrayList<>();
 
         for (PhoneAccount account : getPhoneAccounts(
                 capabilities, excludedCapabilities, uriScheme, packageName,
-                includeDisabledAccounts, userHandle, crossUserAccess)) {
+                includeDisabledAccounts, userHandle, crossUserAccess, includeAll)) {
             handles.add(account.getAccountHandle());
         }
         return handles;
@@ -1484,7 +1574,19 @@
             UserHandle userHandle,
             boolean crossUserAccess) {
         return getPhoneAccounts(capabilities, 0 /*excludedCapabilities*/, uriScheme, packageName,
-                includeDisabledAccounts, userHandle, crossUserAccess);
+                includeDisabledAccounts, userHandle, crossUserAccess, false);
+    }
+
+    private List<PhoneAccount> getPhoneAccounts(
+            int capabilities,
+            String uriScheme,
+            String packageName,
+            boolean includeDisabledAccounts,
+            UserHandle userHandle,
+            boolean crossUserAccess,
+            boolean includeAll) {
+        return getPhoneAccounts(capabilities, 0 /*excludedCapabilities*/, uriScheme, packageName,
+                includeDisabledAccounts, userHandle, crossUserAccess, includeAll);
     }
 
     /**
@@ -1506,7 +1608,22 @@
             boolean includeDisabledAccounts,
             UserHandle userHandle,
             boolean crossUserAccess) {
+        return getPhoneAccounts(capabilities, excludedCapabilities, uriScheme, packageName,
+                includeDisabledAccounts, userHandle, crossUserAccess, false);
+    }
+
+    @VisibleForTesting
+    public List<PhoneAccount> getPhoneAccounts(
+            int capabilities,
+            int excludedCapabilities,
+            String uriScheme,
+            String packageName,
+            boolean includeDisabledAccounts,
+            UserHandle userHandle,
+            boolean crossUserAccess,
+            boolean includeAll) {
         List<PhoneAccount> accounts = new ArrayList<>(mState.accounts.size());
+        List<PhoneAccount> matchedAccounts = new ArrayList<>(mState.accounts.size());
         for (PhoneAccount m : mState.accounts) {
             if (!(m.isEnabled() || includeDisabledAccounts)) {
                 // Do not include disabled accounts.
@@ -1540,12 +1657,22 @@
                 // Not the right package name; skip this one.
                 continue;
             }
+            if (isMatchedUser(m, userHandle)) {
+                matchedAccounts.add(m);
+            }
             if (!crossUserAccess && !isVisibleForUser(m, userHandle, false)) {
                 // Account is not visible for the current user; skip this one.
                 continue;
             }
             accounts.add(m);
         }
+
+        // Return the account if it exactly matches. Otherwise, return any account that's visible
+        if (mTelephonyFeatureFlags.workProfileApiSplit() && !crossUserAccess && !includeAll
+                && !matchedAccounts.isEmpty()) {
+            return matchedAccounts;
+        }
+
         return accounts;
     }
 
@@ -1662,6 +1789,7 @@
             } else {
                 pw.println(defaultOutgoing);
             }
+            pw.println("defaultVoiceSubId: " + SubscriptionManager.getDefaultVoiceSubscriptionId());
             pw.println("simCallManager: " + getSimCallManager(mCurrentUserHandle));
             pw.println("phoneAccounts:");
             pw.increaseIndent();
diff --git a/src/com/android/server/telecom/RespondViaSmsManager.java b/src/com/android/server/telecom/RespondViaSmsManager.java
index 1d42db4..2dcd093 100644
--- a/src/com/android/server/telecom/RespondViaSmsManager.java
+++ b/src/com/android/server/telecom/RespondViaSmsManager.java
@@ -27,7 +27,6 @@
 import android.content.res.Resources;
 import android.telecom.Connection;
 import android.telecom.Log;
-import android.telecom.Response;
 import android.telephony.PhoneNumberUtils;
 import android.telephony.SmsManager;
 import android.telephony.SubscriptionManager;
@@ -92,7 +91,7 @@
      *                 the main thread.
      * @param context The context.
      */
-    public void loadCannedTextMessages(final Response<Void, List<String>> response,
+    public void loadCannedTextMessages(final CallsManager.Response<Void, List<String>> response,
             final Context context) {
         new Thread() {
             @Override
diff --git a/src/com/android/server/telecom/RingbackPlayer.java b/src/com/android/server/telecom/RingbackPlayer.java
index a8af3ac..5ace9ba 100644
--- a/src/com/android/server/telecom/RingbackPlayer.java
+++ b/src/com/android/server/telecom/RingbackPlayer.java
@@ -19,6 +19,7 @@
 import static com.android.server.telecom.LogUtils.Events.START_RINBACK;
 import static com.android.server.telecom.LogUtils.Events.STOP_RINGBACK;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.util.Preconditions;
 import android.telecom.Log;
 
@@ -42,8 +43,12 @@
      */
     private InCallTonePlayer mTonePlayer;
 
-    RingbackPlayer(InCallTonePlayer.Factory playerFactory) {
+    private final Object mLock;
+
+    @VisibleForTesting
+    public RingbackPlayer(InCallTonePlayer.Factory playerFactory) {
         mPlayerFactory = playerFactory;
+        mLock = new Object();
     }
 
     /**
@@ -52,25 +57,27 @@
      * @param call The call for which to ringback.
      */
     public void startRingbackForCall(Call call) {
-        Preconditions.checkState(call.getState() == CallState.DIALING);
+        synchronized (mLock) {
+            Preconditions.checkState(call.getState() == CallState.DIALING);
 
-        if (mCall == call) {
-            Log.w(this, "Ignoring duplicate requests to ring for %s.", call);
-            return;
-        }
+            if (mCall == call) {
+                Log.w(this, "Ignoring duplicate requests to ring for %s.", call);
+                return;
+            }
 
-        if (mCall != null) {
-            // We only get here for the foreground call so, there's no reason why there should
-            // exist a current dialing call.
-            Log.wtf(this, "Ringback player thinks there are two foreground-dialing calls.");
-        }
+            if (mCall != null) {
+                // We only get here for the foreground call so, there's no reason why there should
+                // exist a current dialing call.
+                Log.wtf(this, "Ringback player thinks there are two foreground-dialing calls.");
+            }
 
-        mCall = call;
-        if (mTonePlayer == null) {
-            Log.i(this, "Playing the ringback tone for %s.", call);
-            Log.addEvent(call, START_RINBACK);
-            mTonePlayer = mPlayerFactory.createPlayer(InCallTonePlayer.TONE_RING_BACK);
-            mTonePlayer.startTone();
+            mCall = call;
+            if (mTonePlayer == null) {
+                Log.i(this, "Playing the ringback tone for %s.", call);
+                Log.addEvent(call, START_RINBACK);
+                mTonePlayer = mPlayerFactory.createPlayer(call, InCallTonePlayer.TONE_RING_BACK);
+                mTonePlayer.startTone();
+            }
         }
     }
 
@@ -80,19 +87,27 @@
      * @param call The call for which to stop ringback.
      */
     public void stopRingbackForCall(Call call) {
-        if (mCall == call) {
-            // The foreground call is no longer dialing or is no longer the foreground call. In
-            // either case, stop the ringback tone.
-            mCall = null;
+        synchronized (mLock) {
+            if (mCall == call) {
+                // The foreground call is no longer dialing or is no longer the foreground call. In
+                // either case, stop the ringback tone.
+                mCall = null;
 
-            if (mTonePlayer == null) {
-                Log.w(this, "No player found to stop.");
-            } else {
-                Log.i(this, "Stopping the ringback tone for %s.", call);
-                Log.addEvent(call, STOP_RINGBACK);
-                mTonePlayer.stopTone();
-                mTonePlayer = null;
+                if (mTonePlayer == null) {
+                    Log.w(this, "No player found to stop.");
+                } else {
+                    Log.i(this, "Stopping the ringback tone for %s.", call);
+                    Log.addEvent(call, STOP_RINGBACK);
+                    mTonePlayer.stopTone();
+                    mTonePlayer = null;
+                }
             }
         }
     }
+
+    public boolean isRingbackPlaying() {
+        synchronized (mLock) {
+            return mTonePlayer != null;
+        }
+    }
 }
\ No newline at end of file
diff --git a/src/com/android/server/telecom/Ringer.java b/src/com/android/server/telecom/Ringer.java
index 1710604..3ec4ebe 100644
--- a/src/com/android/server/telecom/Ringer.java
+++ b/src/com/android/server/telecom/Ringer.java
@@ -22,10 +22,12 @@
 import static android.provider.Settings.Global.ZEN_MODE_OFF;
 
 import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.Person;
 import android.content.Context;
+import android.content.res.Resources;
 import android.media.AudioManager;
 import android.media.Ringtone;
 import android.media.VolumeShaper;
@@ -38,13 +40,20 @@
 import android.os.VibrationAttributes;
 import android.os.VibrationEffect;
 import android.os.Vibrator;
+import android.os.vibrator.persistence.ParsedVibration;
+import android.os.vibrator.persistence.VibrationXmlParser;
 import android.telecom.Log;
 import android.telecom.TelecomManager;
 import android.view.accessibility.AccessibilityManager;
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.server.telecom.LogUtils.EventTimer;
+import com.android.server.telecom.flags.FeatureFlags;
 
+import java.io.InputStream;
+import java.io.InputStreamReader;
+import java.io.IOException;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.CountDownLatch;
@@ -59,6 +68,8 @@
  */
 @VisibleForTesting
 public class Ringer {
+    private static final String TAG = "TelecomRinger";
+
     public interface AccessibilityManagerAdapter {
         boolean startFlashNotificationSequence(@NonNull Context context,
                 @AccessibilityManager.FlashNotificationReason int reason);
@@ -84,6 +95,16 @@
     // Used for test to notify the completion of RingerAttributes
     private CountDownLatch mAttributesLatch;
 
+    /**
+     * Delay to be used between consecutive vibrations when a non-repeating vibration effect is
+     * provided by the device.
+     *
+     * <p>If looking to customize the loop delay for a device's ring vibration, the desired repeat
+     * behavior should be encoded directly in the effect specification in the device configuration
+     * rather than changing the here (i.e. in `R.raw.default_ringtone_vibration_effect` resource).
+     */
+    private static int DEFAULT_RING_VIBRATION_LOOP_DELAY_MS = 1000;
+
     private static final long[] PULSE_PRIMING_PATTERN = {0,12,250,12,500}; // priming  + interval
 
     private static final int[] PULSE_PRIMING_AMPLITUDE = {0,255,0,255,0};  // priming  + interval
@@ -96,9 +117,11 @@
     private static final int[] PULSE_RAMPING_AMPLITUDE = {
         77,77,78,79,81,84,87,93,101,114,133,162,205,255,255,0};
 
-    private static final long[] PULSE_PATTERN;
+    @VisibleForTesting
+    public static final long[] PULSE_PATTERN;
 
-    private static final int[] PULSE_AMPLITUDE;
+    @VisibleForTesting
+    public static final int[] PULSE_AMPLITUDE;
 
     private static final int RAMPING_RINGER_VIBRATION_DURATION = 5000;
     private static final int RAMPING_RINGER_DURATION = 10000;
@@ -162,6 +185,7 @@
     private final InCallController mInCallController;
     private final VibrationEffectProxy mVibrationEffectProxy;
     private final boolean mIsHapticPlaybackSupportedByDevice;
+    private final FeatureFlags mFlags;
     /**
      * For unit testing purposes only; when set, {@link #startRinging(Call, boolean)} will complete
      * the future provided by the test using {@link #setBlockOnRingingFuture(CompletableFuture)}.
@@ -207,7 +231,8 @@
             VibrationEffectProxy vibrationEffectProxy,
             InCallController inCallController,
             NotificationManager notificationManager,
-            AccessibilityManagerAdapter accessibilityManagerAdapter) {
+            AccessibilityManagerAdapter accessibilityManagerAdapter,
+            FeatureFlags featureFlags) {
 
         mLock = new Object();
         mSystemSettingsUtil = systemSettingsUtil;
@@ -223,18 +248,15 @@
         mNotificationManager = notificationManager;
         mAccessibilityManagerAdapter = accessibilityManagerAdapter;
 
-        if (mContext.getResources().getBoolean(R.bool.use_simple_vibration_pattern)) {
-            mDefaultVibrationEffect = mVibrationEffectProxy.createWaveform(SIMPLE_VIBRATION_PATTERN,
-                    SIMPLE_VIBRATION_AMPLITUDE, REPEAT_SIMPLE_VIBRATION_AT);
-        } else {
-            mDefaultVibrationEffect = mVibrationEffectProxy.createWaveform(PULSE_PATTERN,
-                    PULSE_AMPLITUDE, REPEAT_VIBRATION_AT);
-        }
+        mDefaultVibrationEffect =
+                loadDefaultRingVibrationEffect(
+                        mContext, mVibrator, mVibrationEffectProxy, featureFlags);
 
         mIsHapticPlaybackSupportedByDevice =
                 mSystemSettingsUtil.isHapticPlaybackSupported(mContext);
 
         mAudioManager = mContext.getSystemService(AudioManager.class);
+        mFlags = featureFlags;
     }
 
     @VisibleForTesting
@@ -456,7 +478,7 @@
             };
             deferBlockOnRingingFuture = true;  // Run in vibrationLogic.
             if (ringtoneSupplier != null) {
-                mRingtonePlayer.play(ringtoneSupplier, afterRingtoneLogic);
+                mRingtonePlayer.play(ringtoneSupplier, afterRingtoneLogic, isHfpDeviceAttached);
             } else {
                 afterRingtoneLogic.accept(/* ringtone= */ null, /* stopped= */ false);
             }
@@ -570,7 +592,7 @@
             Log.addEvent(call, LogUtils.Events.START_CALL_WAITING_TONE, reason);
             mCallWaitingCall = call;
             mCallWaitingPlayer =
-                    mPlayerFactory.createPlayer(InCallTonePlayer.TONE_CALL_WAITING);
+                    mPlayerFactory.createPlayer(call, InCallTonePlayer.TONE_CALL_WAITING);
             mCallWaitingPlayer.startTone();
         }
     }
@@ -629,14 +651,21 @@
             Log.i(this, "shouldRingForContact: returning computation from DndCallFilter.");
             return !call.isCallSuppressedByDoNotDisturb();
         }
-        final Uri contactUri = call.getHandle();
-        final Bundle peopleExtras = new Bundle();
-        if (contactUri != null) {
-            ArrayList<Person> personList = new ArrayList<>();
-            personList.add(new Person.Builder().setUri(contactUri.toString()).build());
-            peopleExtras.putParcelableArrayList(Notification.EXTRA_PEOPLE_LIST, personList);
+        Uri contactUri = call.getHandle();
+        if (mFlags.telecomResolveHiddenDependencies()) {
+            if (contactUri == null) {
+                contactUri = Uri.EMPTY;
+            }
+            return mNotificationManager.matchesCallFilter(contactUri);
+        } else {
+            final Bundle peopleExtras = new Bundle();
+            if (contactUri != null) {
+                ArrayList<Person> personList = new ArrayList<>();
+                personList.add(new Person.Builder().setUri(contactUri.toString()).build());
+                peopleExtras.putParcelableArrayList(Notification.EXTRA_PEOPLE_LIST, personList);
+            }
+            return mNotificationManager.matchesCallFilter(peopleExtras);
         }
-        return mNotificationManager.matchesCallFilter(peopleExtras);
     }
 
     private boolean hasExternalRinger(Call foregroundCall) {
@@ -757,4 +786,65 @@
             return false;
         }
     }
+
+    @Nullable
+    private static VibrationEffect loadSerializedDefaultRingVibration(
+            Resources resources, Vibrator vibrator) {
+        try {
+            InputStream vibrationInputStream =
+                    resources.openRawResource(
+                            com.android.internal.R.raw.default_ringtone_vibration_effect);
+            ParsedVibration parsedVibration = VibrationXmlParser
+                    .parseDocument(
+                            new InputStreamReader(vibrationInputStream, StandardCharsets.UTF_8));
+            if (parsedVibration == null) {
+                Log.w(TAG, "Got null parsed default ring vibration effect.");
+                return null;
+            }
+            return parsedVibration.resolve(vibrator);
+        } catch (IOException | Resources.NotFoundException e) {
+            Log.e(TAG, e, "Error parsing default ring vibration effect.");
+            return null;
+        }
+    }
+
+    private static VibrationEffect loadDefaultRingVibrationEffect(
+            Context context,
+            Vibrator vibrator,
+            VibrationEffectProxy vibrationEffectProxy,
+            FeatureFlags featureFlags) {
+        Resources resources = context.getResources();
+
+        if (resources.getBoolean(R.bool.use_simple_vibration_pattern)) {
+            Log.i(TAG, "Using simple default ring vibration.");
+            return createSimpleRingVibration(vibrationEffectProxy);
+        }
+
+        if (featureFlags.useDeviceProvidedSerializedRingerVibration()) {
+            VibrationEffect parsedEffect = loadSerializedDefaultRingVibration(resources, vibrator);
+            if (parsedEffect != null) {
+                Log.i(TAG, "Using parsed default ring vibration.");
+                // Make the parsed effect repeating to make it vibrate continuously during ring.
+                // If the effect is already repeating, this API call is a no-op.
+                // Otherwise, it  uses `DEFAULT_RING_VIBRATION_LOOP_DELAY_MS` when changing a
+                // non-repeating vibration to a repeating vibration.
+                // This is so that we ensure consecutive loops of the vibration play with some gap
+                // in between.
+                return parsedEffect.applyRepeatingIndefinitely(
+                        /* wantRepeating= */ true, DEFAULT_RING_VIBRATION_LOOP_DELAY_MS);
+            }
+            // Fallback to the simple vibration if the serialized effect cannot be loaded.
+            return createSimpleRingVibration(vibrationEffectProxy);
+        }
+
+        Log.i(TAG, "Using pulse default ring vibration.");
+        return vibrationEffectProxy.createWaveform(
+                PULSE_PATTERN, PULSE_AMPLITUDE, REPEAT_VIBRATION_AT);
+    }
+
+    private static VibrationEffect createSimpleRingVibration(
+            VibrationEffectProxy vibrationEffectProxy) {
+        return vibrationEffectProxy.createWaveform(SIMPLE_VIBRATION_PATTERN,
+                SIMPLE_VIBRATION_AMPLITUDE, REPEAT_SIMPLE_VIBRATION_AT);
+    }
 }
diff --git a/src/com/android/server/telecom/ServiceBinder.java b/src/com/android/server/telecom/ServiceBinder.java
index 7274993..77f7b2e 100644
--- a/src/com/android/server/telecom/ServiceBinder.java
+++ b/src/com/android/server/telecom/ServiceBinder.java
@@ -29,6 +29,7 @@
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.util.Preconditions;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import java.util.Collections;
 import java.util.Set;
@@ -240,6 +241,8 @@
      * Abbreviated form of the package name from {@link #mComponentName}; used for session logging.
      */
     protected final String mPackageAbbreviation;
+    private final FeatureFlags mFlags;
+
 
     /** The set of callbacks waiting for notification of the binding's success or failure. */
     private final Set<BindCallback> mCallbacks = new ArraySet<>();
@@ -282,7 +285,7 @@
      * @param userHandle The {@link UserHandle} to use for binding.
      */
     protected ServiceBinder(String serviceAction, ComponentName componentName, Context context,
-            TelecomSystem.SyncRoot lock, UserHandle userHandle) {
+            TelecomSystem.SyncRoot lock, UserHandle userHandle, FeatureFlags featureFlags) {
         Preconditions.checkState(!TextUtils.isEmpty(serviceAction));
         Preconditions.checkNotNull(componentName);
 
@@ -292,6 +295,7 @@
         mComponentName = componentName;
         mPackageAbbreviation = Log.getPackageAbbreviation(componentName);
         mUserHandle = userHandle;
+        mFlags = featureFlags;
     }
 
     final UserHandle getUserHandle() {
@@ -305,10 +309,16 @@
     }
 
     final void decrementAssociatedCallCount() {
-        decrementAssociatedCallCount(false /*isSuppressingUnbind*/);
+        if (mFlags.updatedRcsCallCountTracking()) {
+            decrementAssociatedCallCountUpdated();
+        } else {
+            decrementAssociatedCallCount(false /*isSuppressingUnbind*/);
+        }
     }
 
     final void decrementAssociatedCallCount(boolean isSuppressingUnbind) {
+        // This is the legacy method - will be removed after the Flags.updatedRcsCallCountTracking
+        // mendel study completes.
         if (mAssociatedCallCount > 0) {
             mAssociatedCallCount--;
             Log.v(this, "Call count decrement %d, %s", mAssociatedCallCount,
@@ -323,6 +333,21 @@
         }
     }
 
+    final void decrementAssociatedCallCountUpdated() {
+        if (mAssociatedCallCount > 0) {
+            mAssociatedCallCount--;
+            Log.i(this, "Call count decrement %d, %s", mAssociatedCallCount,
+                    mComponentName.flattenToShortString());
+
+            if (mAssociatedCallCount == 0) {
+                unbind();
+            }
+        } else {
+            Log.wtf(this, "%s: ignoring a request to decrement mAssociatedCallCount below zero",
+                    mComponentName.getClassName());
+        }
+    }
+
     final int getAssociatedCallCount() {
         return mAssociatedCallCount;
     }
diff --git a/src/com/android/server/telecom/TelecomServiceImpl.java b/src/com/android/server/telecom/TelecomServiceImpl.java
index f33b185..61fa9ba 100644
--- a/src/com/android/server/telecom/TelecomServiceImpl.java
+++ b/src/com/android/server/telecom/TelecomServiceImpl.java
@@ -77,8 +77,10 @@
 import com.android.internal.telecom.ICallControl;
 import com.android.internal.telecom.ICallEventCallback;
 import com.android.internal.telecom.ITelecomService;
+import com.android.internal.telephony.flags.Flags;
 import com.android.internal.util.IndentingPrintWriter;
 import com.android.server.telecom.components.UserCallIntentProcessorFactory;
+import com.android.server.telecom.flags.FeatureFlags;
 import com.android.server.telecom.settings.BlockedNumbersActivity;
 import com.android.server.telecom.voip.IncomingCallTransaction;
 import com.android.server.telecom.voip.OutgoingCallTransaction;
@@ -88,6 +90,7 @@
 
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
+import java.lang.reflect.Method;
 import java.util.HashSet;
 import java.util.List;
 import java.util.Objects;
@@ -354,9 +357,28 @@
 
         @Override
         public ParceledListSlice<PhoneAccountHandle> getCallCapablePhoneAccounts(
-                boolean includeDisabledAccounts, String callingPackage, String callingFeatureId) {
+                boolean includeDisabledAccounts, String callingPackage,
+                String callingFeatureId, boolean acrossProfiles) {
             try {
                 Log.startSession("TSI.gCCPA", Log.getPackageAbbreviation(callingPackage));
+
+                if (mTelephonyFeatureFlags.workProfileApiSplit()) {
+                    if (acrossProfiles) {
+                        enforceInAppCrossProfilePermission();
+                    }
+
+                    if (includeDisabledAccounts && !canReadPrivilegedPhoneState(
+                            callingPackage, "getCallCapablePhoneAccounts")) {
+                        throw new SecurityException(
+                                "Requires READ_PRIVILEGED_PHONE_STATE permission.");
+                    }
+
+                    if (!includeDisabledAccounts && !canReadPhoneState(callingPackage,
+                            callingFeatureId, "Requires READ_PHONE_STATE permission.")) {
+                        throw new SecurityException("Requires READ_PHONE_STATE permission.");
+                    }
+                }
+
                 if (includeDisabledAccounts &&
                         !canReadPrivilegedPhoneState(
                                 callingPackage, "getCallCapablePhoneAccounts")) {
@@ -368,7 +390,11 @@
                 }
                 synchronized (mLock) {
                     final UserHandle callingUserHandle = Binder.getCallingUserHandle();
-                    boolean crossUserAccess = hasInAppCrossUserPermission();
+                    boolean crossUserAccess = mTelephonyFeatureFlags.workProfileApiSplit()
+                            && !acrossProfiles ? false
+                            : (mTelephonyFeatureFlags.workProfileApiSplit()
+                                    ? hasInAppCrossProfilePermission()
+                                    : hasInAppCrossUserPermission());
                     long token = Binder.clearCallingIdentity();
                     try {
                         return new ParceledListSlice<>(
@@ -636,6 +662,7 @@
         public ParceledListSlice<PhoneAccountHandle> getAllPhoneAccountHandles() {
             try {
                 Log.startSession("TSI.gAPAH");
+
                 try {
                     enforceModifyPermission(
                             "getAllPhoneAccountHandles requires MODIFY_PHONE_STATE permission.");
@@ -654,7 +681,7 @@
                                 .getAllPhoneAccountHandles(callingUserHandle,
                                         crossUserAccess));
                     } catch (Exception e) {
-                        Log.e(this, e, "getAllPhoneAccounts");
+                        Log.e(this, e, "getAllPhoneAccountsHandles");
                         throw e;
                     } finally {
                         Binder.restoreCallingIdentity(token);
@@ -781,6 +808,13 @@
                         // Validate the profile boundary of the given image URI.
                         validateAccountIconUserBoundary(account.getIcon());
 
+                        if (mTelephonyFeatureFlags.simultaneousCallingIndications()
+                                && account.hasSimultaneousCallingRestriction()) {
+                            validateSimultaneousCallingPackageNames(
+                                    account.getAccountHandle().getComponentName().getPackageName(),
+                                    account.getSimultaneousCallingRestriction());
+                        }
+
                         final long token = Binder.clearCallingIdentity();
                         try {
                             Log.i(this, "registerPhoneAccount: account=%s",
@@ -1551,6 +1585,23 @@
                             }
                             mCallIntentProcessorAdapter.processIncomingCallIntent(
                                     mCallsManager, intent);
+                            if (mFeatureFlags.earlyBindingToIncallService()) {
+                                PhoneAccount account =
+                                        mPhoneAccountRegistrar.getPhoneAccountUnchecked(
+                                                phoneAccountHandle);
+                                Bundle accountExtra =
+                                        account == null ? new Bundle() : account.getExtras();
+                                PackageManager packageManager = mContext.getPackageManager();
+                                // Start binding to InCallServices for wearable calls that do not
+                                // require call filtering. This is to wake up default dialer earlier
+                                // to mitigate InCallService binding latency.
+                                if (packageManager.hasSystemFeature(PackageManager.FEATURE_WATCH)
+                                        && accountExtra != null && accountExtra.getBoolean(
+                                        PhoneAccount.EXTRA_SKIP_CALL_FILTERING,
+                                        false)) {
+                                    mCallsManager.getInCallController().bindToServices(null);
+                                }
+                            }
                         } finally {
                             Binder.restoreCallingIdentity(token);
                         }
@@ -1967,6 +2018,11 @@
                 pw.increaseIndent();
                 Analytics.dump(pw);
                 pw.decreaseIndent();
+
+                pw.println("Flag Configurations: ");
+                pw.increaseIndent();
+                reflectAndPrintFlagConfigs(pw);
+                pw.decreaseIndent();
             }
             if (isTimeLineView) {
                 Log.dumpEventsTimeline(pw);
@@ -1976,6 +2032,28 @@
         }
 
         /**
+         * Print all feature flag configurations that Telecom is using for debugging purposes.
+         */
+        private void reflectAndPrintFlagConfigs(IndentingPrintWriter pw) {
+
+            try {
+                // Look away, a forbidden technique (reflection) is being used to allow us to get
+                // all flag configs without having to add them manually to this method.
+                Method[] methods = FeatureFlags.class.getMethods();
+                if (methods.length == 0) {
+                    pw.println("NONE");
+                    return;
+                }
+                for (Method m : methods) {
+                    pw.println(m.getName() + "-> " + m.invoke(mFeatureFlags));
+                }
+            } catch (Exception e) {
+                pw.println("[ERROR]");
+            }
+
+        }
+
+        /**
          * @see android.telecom.TelecomManager#createManageBlockedNumbersIntent
          */
         @Override
@@ -2138,7 +2216,7 @@
                     try {
                         Log.i(this, "handleCallIntent: handling call intent");
                         mCallIntentProcessorAdapter.processOutgoingCallIntent(mContext,
-                                mCallsManager, intent, callingPackage);
+                                mCallsManager, intent, callingPackage, mFeatureFlags);
                     } finally {
                         Binder.restoreCallingIdentity(token);
                     }
@@ -2212,6 +2290,39 @@
         }
 
         /**
+         * A method intended for use in testing to query whether a particular non-ui inCallService
+         * is bound in a call.
+         * @param packageName of the service to query.
+         * @return whether it is bound or not.
+         */
+        @Override
+        public boolean isNonUiInCallServiceBound(String packageName) {
+            Log.startSession("TCI.iNUICSB");
+            try {
+                synchronized (mLock) {
+                    enforceShellOnly(Binder.getCallingUid(), "isNonUiInCallServiceBound");
+                    if (!(mContext.checkCallingOrSelfPermission(READ_PHONE_STATE)
+                            == PackageManager.PERMISSION_GRANTED) ||
+                            !(mContext.checkCallingOrSelfPermission(READ_PRIVILEGED_PHONE_STATE)
+                                    == PackageManager.PERMISSION_GRANTED)) {
+                        throw new SecurityException("isNonUiInCallServiceBound requires the"
+                                + " READ_PHONE_STATE or READ_PRIVILEGED_PHONE_STATE permission");
+                    }
+                    long token = Binder.clearCallingIdentity();
+                    try {
+                        return mCallsManager
+                                .getInCallController()
+                                .isNonUiInCallServiceBound(packageName);
+                    } finally {
+                        Binder.restoreCallingIdentity(token);
+                    }
+                }
+            } finally {
+                Log.endSession();
+            }
+        }
+
+        /**
          * A method intended for use in testing to reset car mode at all priorities.
          *
          * Runs during setup to avoid cascading failures from failing car mode CTS.
@@ -2478,6 +2589,9 @@
     private final TelecomSystem.SyncRoot mLock;
     private TransactionManager mTransactionManager;
     private final TransactionalServiceRepository mTransactionalServiceRepository;
+    private final FeatureFlags mFeatureFlags;
+    private final com.android.internal.telephony.flags.FeatureFlags mTelephonyFeatureFlags;
+
 
     public TelecomServiceImpl(
             Context context,
@@ -2488,6 +2602,8 @@
             DefaultDialerCache defaultDialerCache,
             SubscriptionManagerAdapter subscriptionManagerAdapter,
             SettingsSecureAdapter settingsSecureAdapter,
+            FeatureFlags featureFlags,
+            com.android.internal.telephony.flags.FeatureFlags telephonyFeatureFlags,
             TelecomSystem.SyncRoot lock) {
         mContext = context;
         mAppOpsManager = (AppOpsManager) mContext.getSystemService(Context.APP_OPS_SERVICE);
@@ -2495,6 +2611,13 @@
         mPackageManager = mContext.getPackageManager();
 
         mCallsManager = callsManager;
+        mFeatureFlags = featureFlags;
+        if (telephonyFeatureFlags != null) {
+            mTelephonyFeatureFlags = telephonyFeatureFlags;
+        } else {
+            mTelephonyFeatureFlags =
+                    new com.android.internal.telephony.flags.FeatureFlagsImpl();
+        }
         mLock = lock;
         mPhoneAccountRegistrar = phoneAccountRegistrar;
         mUserCallIntentProcessorFactory = userCallIntentProcessorFactory;
@@ -2707,6 +2830,7 @@
         int packageUid = -1;
         int callingUid = Binder.getCallingUid();
         PackageManager pm;
+        long token = Binder.clearCallingIdentity();
         try{
             pm = mContext.createContextAsUser(
                     UserHandle.getUserHandleForUid(callingUid), 0).getPackageManager();
@@ -2715,6 +2839,8 @@
             Log.i(this, "callingUidMatchesPackageManagerRecords:"
                             + " createContextAsUser hit exception=[%s]", e.toString());
             return false;
+        } finally {
+            Binder.restoreCallingIdentity(token);
         }
         if (pm != null) {
             try {
@@ -2862,12 +2988,24 @@
                         + " INTERACT_ACROSS_USERS permission");
     }
 
+    private void enforceInAppCrossProfilePermission() {
+        mContext.enforceCallingOrSelfPermission(
+                android.Manifest.permission.INTERACT_ACROSS_PROFILES, "Must be system or have"
+                        + " INTERACT_ACROSS_PROFILES permission");
+    }
+
     private boolean hasInAppCrossUserPermission() {
         return mContext.checkCallingOrSelfPermission(
                 Manifest.permission.INTERACT_ACROSS_USERS)
                 == PackageManager.PERMISSION_GRANTED;
     }
 
+    private boolean hasInAppCrossProfilePermission() {
+        return mContext.checkCallingOrSelfPermission(
+                Manifest.permission.INTERACT_ACROSS_PROFILES)
+                == PackageManager.PERMISSION_GRANTED;
+    }
+
     // to be used for TestApi methods that can only be called with SHELL UID.
     private void enforceShellOnly(int callingUid, String message) {
         if (callingUid == Process.SHELL_UID || callingUid == Process.ROOT_UID) {
@@ -3162,4 +3300,20 @@
             }
         }
     }
+
+    private void validateSimultaneousCallingPackageNames(String appPackageName,
+            Set<PhoneAccountHandle> handles) {
+        for (PhoneAccountHandle handle : handles) {
+            ComponentName name = handle.getComponentName();
+            if (name == null) {
+                throw new IllegalArgumentException("ComponentName is null");
+            }
+            String restrictionPackageName = name.getPackageName();
+            if (!appPackageName.equals(restrictionPackageName)) {
+                throw new SecurityException("The package name of the PhoneAccount does not "
+                        + "match one or more of the package names set in the simultaneous "
+                        + "calling restriction.");
+            }
+        }
+    }
 }
diff --git a/src/com/android/server/telecom/TelecomSystem.java b/src/com/android/server/telecom/TelecomSystem.java
index 67bb81f..4310945 100644
--- a/src/com/android/server/telecom/TelecomSystem.java
+++ b/src/com/android/server/telecom/TelecomSystem.java
@@ -45,8 +45,12 @@
 import com.android.server.telecom.bluetooth.BluetoothRouteManager;
 import com.android.server.telecom.bluetooth.BluetoothStateReceiver;
 import com.android.server.telecom.callfiltering.BlockedNumbersAdapter;
+import com.android.server.telecom.callfiltering.CallFilterResultCallback;
+import com.android.server.telecom.callfiltering.IncomingCallFilterGraph;
+import com.android.server.telecom.callfiltering.IncomingCallFilterGraphProvider;
 import com.android.server.telecom.components.UserCallIntentProcessor;
 import com.android.server.telecom.components.UserCallIntentProcessorFactory;
+import com.android.server.telecom.flags.FeatureFlags;
 import com.android.server.telecom.ui.AudioProcessingNotification;
 import com.android.server.telecom.ui.CallStreamingNotification;
 import com.android.server.telecom.ui.DisconnectedCallNotifier;
@@ -223,7 +227,9 @@
             DeviceIdleControllerAdapter deviceIdleControllerAdapter,
             Ringer.AccessibilityManagerAdapter accessibilityManagerAdapter,
             Executor asyncTaskExecutor,
-            BlockedNumbersAdapter blockedNumbersAdapter) {
+            Executor asyncCallAudioTaskExecutor,
+            BlockedNumbersAdapter blockedNumbersAdapter,
+            FeatureFlags featureFlags) {
         mContext = context.getApplicationContext();
         LogUtils.initLogging(mContext);
         android.telecom.Log.setLock(mLock);
@@ -239,7 +245,7 @@
         try {
             mPhoneAccountRegistrar = new PhoneAccountRegistrar(mContext, mLock, defaultDialerCache,
                     packageName -> AppLabelProxy.Util.getAppLabel(
-                            mContext.getPackageManager(), packageName));
+                            mContext.getPackageManager(), packageName), null);
 
             mContactsAsyncHelper = contactsAsyncHelperFactory.create(
                     new ContactsAsyncHelper.ContentResolverAdapter() {
@@ -249,13 +255,19 @@
                             return context.getContentResolver().openInputStream(uri);
                         }
                     });
+            CallAudioCommunicationDeviceTracker communicationDeviceTracker = new
+                    CallAudioCommunicationDeviceTracker(mContext);
             BluetoothDeviceManager bluetoothDeviceManager = new BluetoothDeviceManager(mContext,
-                    mContext.getSystemService(BluetoothManager.class).getAdapter());
+                    mContext.getSystemService(BluetoothManager.class).getAdapter(),
+                    communicationDeviceTracker, featureFlags);
             BluetoothRouteManager bluetoothRouteManager = new BluetoothRouteManager(mContext, mLock,
-                    bluetoothDeviceManager, new Timeouts.Adapter());
+                    bluetoothDeviceManager, new Timeouts.Adapter(),
+                    communicationDeviceTracker, featureFlags);
             BluetoothStateReceiver bluetoothStateReceiver = new BluetoothStateReceiver(
-                    bluetoothDeviceManager, bluetoothRouteManager);
+                    bluetoothDeviceManager, bluetoothRouteManager,
+                    communicationDeviceTracker, featureFlags);
             mContext.registerReceiver(bluetoothStateReceiver, BluetoothStateReceiver.INTENT_FILTER);
+            communicationDeviceTracker.setBluetoothRouteManager(bluetoothRouteManager);
 
             WiredHeadsetManager wiredHeadsetManager = new WiredHeadsetManager(mContext);
             SystemStateHelper systemStateHelper = new SystemStateHelper(mContext, mLock);
@@ -263,7 +275,8 @@
             mMissedCallNotifier = missedCallNotifierImplFactory
                     .makeMissedCallNotifierImpl(mContext, mPhoneAccountRegistrar,
                             defaultDialerCache,
-                            deviceIdleControllerAdapter);
+                            deviceIdleControllerAdapter,
+                            featureFlags);
             DisconnectedCallNotifier.Factory disconnectedCallNotifierFactory =
                     new DisconnectedCallNotifier.Default();
 
@@ -282,7 +295,7 @@
                         EmergencyCallHelper emergencyCallHelper) {
                     return new InCallController(context, lock, callsManager, systemStateProvider,
                             defaultDialerCache, timeoutsAdapter, emergencyCallHelper,
-                            new CarModeTracker(), clockProxy);
+                            new CarModeTracker(), clockProxy, featureFlags);
                 }
             };
 
@@ -396,10 +409,14 @@
                     callAnomalyWatchdog,
                     accessibilityManagerAdapter,
                     asyncTaskExecutor,
+                    asyncCallAudioTaskExecutor,
                     blockedNumbersAdapter,
                     transactionManager,
                     emergencyCallDiagnosticLogger,
-                    callStreamingNotification);
+                    communicationDeviceTracker,
+                    callStreamingNotification,
+                    featureFlags,
+                    IncomingCallFilterGraph::new);
 
             mIncomingCallNotifier = incomingCallNotifier;
             incomingCallNotifier.setCallsManagerProxy(new IncomingCallNotifier.CallsManagerProxy() {
@@ -443,7 +460,7 @@
             }
 
             mCallIntentProcessor = new CallIntentProcessor(mContext, mCallsManager,
-                    defaultDialerCache);
+                    defaultDialerCache, featureFlags);
             mTelecomBroadcastIntentProcessor = new TelecomBroadcastIntentProcessor(
                     mContext, mCallsManager);
 
@@ -467,6 +484,8 @@
                     defaultDialerCache,
                     new TelecomServiceImpl.SubscriptionManagerAdapterImpl(),
                     new TelecomServiceImpl.SettingsSecureAdapterImpl(),
+                    featureFlags,
+                    null,
                     mLock);
         } finally {
             Log.endSession();
diff --git a/src/com/android/server/telecom/TransactionalServiceWrapper.java b/src/com/android/server/telecom/TransactionalServiceWrapper.java
index 25aaad7..938ee58 100644
--- a/src/com/android/server/telecom/TransactionalServiceWrapper.java
+++ b/src/com/android/server/telecom/TransactionalServiceWrapper.java
@@ -46,6 +46,7 @@
 import com.android.server.telecom.voip.ParallelTransaction;
 import com.android.server.telecom.voip.RequestNewActiveCallTransaction;
 import com.android.server.telecom.voip.SerialTransaction;
+import com.android.server.telecom.voip.SetMuteStateTransaction;
 import com.android.server.telecom.voip.TransactionManager;
 import com.android.server.telecom.voip.VoipCallTransaction;
 import com.android.server.telecom.voip.VoipCallTransactionResult;
@@ -225,6 +226,18 @@
         }
 
         @Override
+        public void setMuteState(boolean isMuted, android.os.ResultReceiver callback)
+                throws RemoteException {
+            try {
+                Log.startSession("TSW.sMS");
+                addTransactionsToManager(
+                        new SetMuteStateTransaction(mCallsManager, isMuted), callback);
+            } finally {
+                Log.endSession();
+            }
+        }
+
+        @Override
         public void startCallStreaming(String callId, android.os.ResultReceiver callback)
                 throws RemoteException {
             try {
@@ -451,7 +464,8 @@
 
                         @Override
                         public void onError(CallException exception) {
-                            Log.i(TAG, "onSetInactive: onError: with e=[%e]", exception);
+                            Log.w(TAG, "onSetInactive: onError: e.code=[%d], e.msg=[%s]",
+                                    exception.getCode(), exception.getMessage());
                         }
                     });
         } finally {
@@ -498,8 +512,9 @@
 
                         @Override
                         public void onError(CallException exception) {
-                            Log.i(TAG, "onCallStreamingStarted: onError: with e=[%e]",
-                                    exception);
+                            Log.w(TAG, "onCallStreamingStarted: onError: "
+                                            + "e.code=[%d], e.msg=[%s]",
+                                    exception.getCode(), exception.getMessage());
                             stopCallStreaming(call);
                         }
                     }
diff --git a/src/com/android/server/telecom/UserUtil.java b/src/com/android/server/telecom/UserUtil.java
index a304401..670ad34 100644
--- a/src/com/android/server/telecom/UserUtil.java
+++ b/src/com/android/server/telecom/UserUtil.java
@@ -16,10 +16,19 @@
 
 package com.android.server.telecom;
 
+import android.app.admin.DevicePolicyManager;
 import android.content.Context;
+import android.content.Intent;
 import android.content.pm.UserInfo;
+import android.net.Uri;
 import android.os.UserHandle;
 import android.os.UserManager;
+import android.telecom.Log;
+import android.telecom.PhoneAccount;
+import android.telecom.PhoneAccountHandle;
+
+import com.android.server.telecom.components.ErrorDialogActivity;
+import com.android.server.telecom.flags.FeatureFlags;
 
 public final class UserUtil {
 
@@ -40,4 +49,90 @@
         UserInfo userInfo = getUserInfoFromUserHandle(context, userHandle);
         return userInfo != null && userInfo.profileGroupId != userInfo.id;
     }
+
+    public static void showErrorDialogForRestrictedOutgoingCall(Context context,
+            int stringId, String tag, String reason) {
+        final Intent intent = new Intent(context, ErrorDialogActivity.class);
+        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
+        intent.putExtra(ErrorDialogActivity.ERROR_MESSAGE_ID_EXTRA, stringId);
+        context.startActivityAsUser(intent, UserHandle.CURRENT);
+        Log.w(tag, "Rejecting non-emergency phone call because "
+                + reason);
+    }
+
+    public static boolean hasOutgoingCallsUserRestriction(Context context,
+            UserHandle userHandle, Uri handle, boolean isSelfManaged, String tag) {
+        // Set handle for conference calls. Refer to {@link Connection#ADHOC_CONFERENCE_ADDRESS}.
+        if (handle == null) {
+            handle = Uri.parse("tel:conf-factory");
+        }
+
+        if(!isSelfManaged) {
+            // Check DISALLOW_OUTGOING_CALLS restriction. Note: We are skipping this
+            // check in a managed profile user because this check can always be bypassed
+            // by copying and pasting the phone number into the personal dialer.
+            if (!UserUtil.isManagedProfile(context, userHandle)) {
+                // Only emergency calls are allowed for users with the DISALLOW_OUTGOING_CALLS
+                // restriction.
+                if (!TelephonyUtil.shouldProcessAsEmergency(context, handle)) {
+                    final UserManager userManager =
+                            (UserManager) context.getSystemService(Context.USER_SERVICE);
+                    if (userManager.hasBaseUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS,
+                            userHandle)) {
+                        String reason = "of DISALLOW_OUTGOING_CALLS restriction";
+                        showErrorDialogForRestrictedOutgoingCall(context,
+                                R.string.outgoing_call_not_allowed_user_restriction, tag, reason);
+                        return true;
+                    } else if (userManager.hasUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS,
+                            userHandle)) {
+                        final DevicePolicyManager dpm =
+                                context.getSystemService(DevicePolicyManager.class);
+                        if (dpm == null) {
+                            return true;
+                        }
+                        final Intent adminSupportIntent = dpm.createAdminSupportIntent(
+                                UserManager.DISALLOW_OUTGOING_CALLS);
+                        if (adminSupportIntent != null) {
+                            context.startActivityAsUser(adminSupportIntent, userHandle);
+                        }
+                        return true;
+                    }
+                }
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Gets the associated user for the given call. Note: this is applicable to all calls except
+     * outgoing calls as the associated user is already based off of the user placing the
+     * call.
+     *
+     * @param phoneAccountRegistrar
+     * @param currentUser Current user profile (this can either be the admin or a secondary/guest
+     *                    user). Note that work profile users fall under the admin user.
+     * @param targetPhoneAccount The phone account to retrieve the {@link UserHandle} from.
+     * @return current user if it isn't the admin or if the work profile is paused for the target
+     * phone account handle user, otherwise return the target phone account handle user. If the
+     * flag is disabled, return the legacy {@link UserHandle}.
+     */
+    public static UserHandle getAssociatedUserForCall(boolean isAssociatedUserFlagEnabled,
+            PhoneAccountRegistrar phoneAccountRegistrar, UserHandle currentUser,
+            PhoneAccountHandle targetPhoneAccount) {
+        if (!isAssociatedUserFlagEnabled) {
+            return targetPhoneAccount.getUserHandle();
+        }
+        // For multi-user phone accounts, associate the call with the profile receiving/placing
+        // the call. For SIM accounts (that are assigned to specific users), the user association
+        // will be placed on the target phone account handle user.
+        PhoneAccount account = phoneAccountRegistrar.getPhoneAccountUnchecked(targetPhoneAccount);
+        if (account != null) {
+            return account.hasCapabilities(PhoneAccount.CAPABILITY_MULTI_USER)
+                    ? currentUser
+                    : targetPhoneAccount.getUserHandle();
+        }
+        // If target phone account handle is null or account cannot be found,
+        // return the current user.
+        return currentUser;
+    }
 }
diff --git a/src/com/android/server/telecom/bluetooth/BluetoothDeviceManager.java b/src/com/android/server/telecom/bluetooth/BluetoothDeviceManager.java
index 473e7b9..27e5a7d 100644
--- a/src/com/android/server/telecom/bluetooth/BluetoothDeviceManager.java
+++ b/src/com/android/server/telecom/bluetooth/BluetoothDeviceManager.java
@@ -28,10 +28,15 @@
 import android.media.AudioManager;
 import android.media.AudioDeviceInfo;
 import android.media.audio.common.AudioDevice;
+import android.os.Bundle;
 import android.telecom.Log;
+import android.util.ArraySet;
 import android.util.LocalLog;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.util.IndentingPrintWriter;
+import com.android.server.telecom.CallAudioCommunicationDeviceTracker;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -58,7 +63,8 @@
             public void onGroupStatusChanged(int groupId, int groupStatus) {}
             @Override
             public void onGroupNodeAdded(BluetoothDevice device, int groupId) {
-                Log.i(this, device.getAddress() + " group added " + groupId);
+                Log.i(this, (device == null ? "device is null" : device.getAddress())
+                        + " group added " + groupId);
                 if (device == null || groupId == BluetoothLeAudio.GROUP_ID_INVALID) {
                     Log.w(this, "invalid parameter");
                     return;
@@ -70,6 +76,8 @@
             }
             @Override
             public void onGroupNodeRemoved(BluetoothDevice device, int groupId) {
+                Log.i(this, (device == null ? "device is null" : device.getAddress())
+                        + " group removed " + groupId);
                 if (device == null || groupId == BluetoothLeAudio.GROUP_ID_INVALID) {
                     Log.w(this, "invalid parameter");
                     return;
@@ -85,7 +93,7 @@
             new BluetoothProfile.ServiceListener() {
                 @Override
                 public void onServiceConnected(int profile, BluetoothProfile proxy) {
-                    Log.startSession("BMSL.oSC");
+                    Log.startSession("BPSL.oSC");
                     try {
                         synchronized (mLock) {
                             String logString;
@@ -101,9 +109,13 @@
                                 logString = "Got BluetoothLeAudio: "
                                         + mBluetoothLeAudioService;
                                 if (!mLeAudioCallbackRegistered) {
-                                    mBluetoothLeAudioService.registerCallback(
-                                                mExecutor, mLeAudioCallbacks);
-                                    mLeAudioCallbackRegistered = true;
+                                    try {
+                                        mBluetoothLeAudioService.registerCallback(
+                                                    mExecutor, mLeAudioCallbacks);
+                                        mLeAudioCallbackRegistered = true;
+                                    } catch (IllegalStateException e) {
+                                        logString += ", but Bluetooth is down";
+                                    }
                                 }
                             } else {
                                 logString = "Connected to non-requested bluetooth service." +
@@ -119,7 +131,7 @@
 
                 @Override
                 public void onServiceDisconnected(int profile) {
-                    Log.startSession("BMSL.oSD");
+                    Log.startSession("BPSL.oSD");
                     try {
                         synchronized (mLock) {
                             LinkedHashMap<String, BluetoothDevice> lostServiceDevices;
@@ -174,6 +186,12 @@
             new LinkedHashMap<>();
     private final LinkedHashMap<BluetoothDevice, Integer> mGroupsByDevice =
             new LinkedHashMap<>();
+    private final ArrayList<LinkedHashMap<String, BluetoothDevice>>
+            mDevicesByAddressMaps = new ArrayList<LinkedHashMap<String, BluetoothDevice>>(); {
+        mDevicesByAddressMaps.add(mHfpDevicesByAddress);
+        mDevicesByAddressMaps.add(mHearingAidDevicesByAddress);
+        mDevicesByAddressMaps.add(mLeAudioDevicesByAddress);
+    }
     private int mGroupIdActive = BluetoothLeAudio.GROUP_ID_INVALID;
     private int mGroupIdPending = BluetoothLeAudio.GROUP_ID_INVALID;
     private final LocalLog mLocalLog = new LocalLog(20);
@@ -194,8 +212,12 @@
     private BluetoothAdapter mBluetoothAdapter;
     private AudioManager mAudioManager;
     private Executor mExecutor;
+    private CallAudioCommunicationDeviceTracker mCommunicationDeviceTracker;
+    private FeatureFlags mFeatureFlags;
 
-    public BluetoothDeviceManager(Context context, BluetoothAdapter bluetoothAdapter) {
+    public BluetoothDeviceManager(Context context, BluetoothAdapter bluetoothAdapter,
+            CallAudioCommunicationDeviceTracker communicationDeviceTracker,
+            FeatureFlags featureFlags) {
         if (bluetoothAdapter != null) {
             mBluetoothAdapter = bluetoothAdapter;
             bluetoothAdapter.getProfileProxy(context, mBluetoothProfileServiceListener,
@@ -206,6 +228,8 @@
                     BluetoothProfile.LE_AUDIO);
             mAudioManager = context.getSystemService(AudioManager.class);
             mExecutor = context.getMainExecutor();
+            mCommunicationDeviceTracker = communicationDeviceTracker;
+            mFeatureFlags = featureFlags;
         }
     }
 
@@ -234,18 +258,38 @@
     }
 
     public int getNumConnectedDevices() {
-        synchronized (mLock) {
-            return mHfpDevicesByAddress.size() +
-                    mHearingAidDevicesByAddress.size() +
-                    getLeAudioConnectedDevices().size();
-        }
+        return getConnectedDevices().size();
     }
 
     public Collection<BluetoothDevice> getConnectedDevices() {
         synchronized (mLock) {
-            ArrayList<BluetoothDevice> result = new ArrayList<>(mHfpDevicesByAddress.values());
+            ArraySet<BluetoothDevice> result = new ArraySet<>();
+
+            // Set storing the group ids of all dual mode audio devices to de-dupe them
+            Set<Integer> dualModeGroupIds = new ArraySet<>();
+            for (BluetoothDevice hfpDevice: mHfpDevicesByAddress.values()) {
+                result.add(hfpDevice);
+                if (mBluetoothLeAudioService == null) {
+                    continue;
+                }
+                int groupId = mBluetoothLeAudioService.getGroupId(hfpDevice);
+                if (groupId != BluetoothLeAudio.GROUP_ID_INVALID) {
+                    dualModeGroupIds.add(groupId);
+                }
+            }
+
             result.addAll(mHearingAidDevicesByAddress.values());
-            result.addAll(getLeAudioConnectedDevices());
+            if (mBluetoothLeAudioService == null) {
+                return Collections.unmodifiableCollection(result);
+            }
+            for (BluetoothDevice leAudioDevice: getLeAudioConnectedDevices()) {
+                // Exclude dual mode audio devices included from the HFP devices list
+                int groupId = mBluetoothLeAudioService.getGroupId(leAudioDevice);
+                if (groupId != BluetoothLeAudio.GROUP_ID_INVALID
+                        && !dualModeGroupIds.contains(groupId)) {
+                    result.add(leAudioDevice);
+                }
+            }
             return Collections.unmodifiableCollection(result);
         }
     }
@@ -253,9 +297,9 @@
     // Same as getConnectedDevices except it filters out the hearing aid devices that are linked
     // together by their hiSyncId.
     public Collection<BluetoothDevice> getUniqueConnectedDevices() {
-        ArrayList<BluetoothDevice> result;
+        ArraySet<BluetoothDevice> result;
         synchronized (mLock) {
-            result = new ArrayList<>(mHfpDevicesByAddress.values());
+            result = new ArraySet<>(mHfpDevicesByAddress.values());
         }
         Set<Long> seenHiSyncIds = new LinkedHashSet<>();
         // Add the left-most active device to the seen list so that we match up with the list
@@ -330,8 +374,10 @@
         }
     }
 
-    void onDeviceConnected(BluetoothDevice device, int deviceType) {
+    @VisibleForTesting
+    public void onDeviceConnected(BluetoothDevice device, int deviceType) {
         synchronized (mLock) {
+            clearDeviceFromDeviceMaps(device.getAddress());
             LinkedHashMap<String, BluetoothDevice> targetDeviceMap;
             if (deviceType == DEVICE_TYPE_LE_AUDIO) {
                 if (mBluetoothLeAudioService == null) {
@@ -367,12 +413,20 @@
                 return;
             }
             if (!targetDeviceMap.containsKey(device.getAddress())) {
+                Log.i(this, "Adding device with address: " + device + " and devicetype="
+                        + getDeviceTypeString(deviceType));
                 targetDeviceMap.put(device.getAddress(), device);
                 mBluetoothRouteManager.onDeviceAdded(device.getAddress());
             }
         }
     }
 
+    void clearDeviceFromDeviceMaps(String deviceAddress) {
+        for (LinkedHashMap<String, BluetoothDevice> deviceMap : mDevicesByAddressMaps) {
+            deviceMap.remove(deviceAddress);
+        }
+    }
+
     void onDeviceDisconnected(BluetoothDevice device, int deviceType) {
         mLocalLog.log("Device disconnected -- address: " + device.getAddress() + " deviceType: "
                 + deviceType);
@@ -391,6 +445,8 @@
                 return;
             }
             if (targetDeviceMap.containsKey(device.getAddress())) {
+                Log.i(this, "Removing device with address: " + device + " and devicetype="
+                        + getDeviceTypeString(deviceType));
                 targetDeviceMap.remove(device.getAddress());
                 mBluetoothRouteManager.onDeviceLost(device.getAddress());
             }
@@ -398,9 +454,14 @@
     }
 
     public void disconnectAudio() {
-        disconnectSco();
-        clearLeAudioCommunicationDevice();
-        clearHearingAidCommunicationDevice();
+        if (mFeatureFlags.callAudioCommunicationDeviceRefactor()) {
+            mCommunicationDeviceTracker.clearBtCommunicationDevice();
+            disconnectSco();
+        } else {
+            disconnectSco();
+            clearLeAudioCommunicationDevice();
+            clearHearingAidCommunicationDevice();
+        }
     }
 
     public void disconnectSco() {
@@ -568,50 +629,78 @@
     // Connect audio to the bluetooth device at address, checking to see whether it's
     // le audio, hearing aid or a HFP device, and using the proper BT API.
     public boolean connectAudio(String address, boolean switchingBtDevices) {
+        int callProfile = BluetoothProfile.LE_AUDIO;
+        Log.i(this, "Telecomm connecting audio to device: " + address);
+        BluetoothDevice device = null;
         if (mLeAudioDevicesByAddress.containsKey(address)) {
+            Log.i(this, "Telecomm found LE Audio device for address: " + address);
             if (mBluetoothLeAudioService == null) {
                 Log.w(this, "Attempting to turn on audio when the le audio service is null");
                 return false;
             }
-            BluetoothDevice device = mLeAudioDevicesByAddress.get(address);
-            if (mBluetoothAdapter.setActiveDevice(
-                    device, BluetoothAdapter.ACTIVE_DEVICE_ALL)) {
-
-                /* ACTION_ACTIVE_DEVICE_CHANGED intent will trigger setting communication device.
-                 * Only after receiving ACTION_ACTIVE_DEVICE_CHANGED it is known that device that
-                 * will be audio switched to is available to be choose as communication device */
-                if (!switchingBtDevices) {
-                    return setLeAudioCommunicationDevice();
-                }
-
-                return true;
-            }
-            return false;
+            device = mLeAudioDevicesByAddress.get(address);
+            callProfile = BluetoothProfile.LE_AUDIO;
         } else if (mHearingAidDevicesByAddress.containsKey(address)) {
+            Log.i(this, "Telecomm found hearing aid device for address: " + address);
             if (mBluetoothHearingAid == null) {
                 Log.w(this, "Attempting to turn on audio when the hearing aid service is null");
                 return false;
             }
-            if (mBluetoothAdapter.setActiveDevice(
-                    mHearingAidDevicesByAddress.get(address),
-                    BluetoothAdapter.ACTIVE_DEVICE_ALL)) {
-
-                /* ACTION_ACTIVE_DEVICE_CHANGED intent will trigger setting communication device.
-                 * Only after receiving ACTION_ACTIVE_DEVICE_CHANGED it is known that device that
-                 * will be audio switched to is available to be choose as communication device */
-                if (!switchingBtDevices) {
-                    return setHearingAidCommunicationDevice();
-                }
-
-                return true;
-            }
-            return false;
+            device = mHearingAidDevicesByAddress.get(address);
+            callProfile = BluetoothProfile.HEARING_AID;
         } else if (mHfpDevicesByAddress.containsKey(address)) {
-            BluetoothDevice device = mHfpDevicesByAddress.get(address);
+            Log.i(this, "Telecomm found HFP device for address: " + address);
             if (mBluetoothHeadset == null) {
                 Log.w(this, "Attempting to turn on audio when the headset service is null");
                 return false;
             }
+            device = mHfpDevicesByAddress.get(address);
+            callProfile = BluetoothProfile.HEADSET;
+        }
+
+        if (device == null) {
+            Log.w(this, "No active profiles for Bluetooth address=" + address);
+            return false;
+        }
+
+        Bundle preferredAudioProfiles = mBluetoothAdapter.getPreferredAudioProfiles(device);
+        if (preferredAudioProfiles != null && !preferredAudioProfiles.isEmpty()
+            && preferredAudioProfiles.getInt(BluetoothAdapter.AUDIO_MODE_DUPLEX) != 0) {
+            Log.i(this, "Preferred duplex profile for device=" + address + " is "
+                + preferredAudioProfiles.getInt(BluetoothAdapter.AUDIO_MODE_DUPLEX));
+            callProfile = preferredAudioProfiles.getInt(BluetoothAdapter.AUDIO_MODE_DUPLEX);
+        }
+
+        if (callProfile == BluetoothProfile.LE_AUDIO) {
+            if (mBluetoothAdapter.setActiveDevice(
+                    device, BluetoothAdapter.ACTIVE_DEVICE_ALL)) {
+                /* ACTION_ACTIVE_DEVICE_CHANGED intent will trigger setting communication device.
+                 * Only after receiving ACTION_ACTIVE_DEVICE_CHANGED it is known that device that
+                 * will be audio switched to is available to be choose as communication device */
+                if (!switchingBtDevices) {
+                    return mFeatureFlags.callAudioCommunicationDeviceRefactor() ?
+                            mCommunicationDeviceTracker.setCommunicationDevice(
+                                    AudioDeviceInfo.TYPE_BLE_HEADSET, device)
+                            : setLeAudioCommunicationDevice();
+                }
+                return true;
+            }
+            return false;
+        } else if (callProfile == BluetoothProfile.HEARING_AID) {
+            if (mBluetoothAdapter.setActiveDevice(device, BluetoothAdapter.ACTIVE_DEVICE_ALL)) {
+                /* ACTION_ACTIVE_DEVICE_CHANGED intent will trigger setting communication device.
+                 * Only after receiving ACTION_ACTIVE_DEVICE_CHANGED it is known that device that
+                 * will be audio switched to is available to be choose as communication device */
+                if (!switchingBtDevices) {
+                    return mFeatureFlags.callAudioCommunicationDeviceRefactor() ?
+                            mCommunicationDeviceTracker.setCommunicationDevice(
+                                    AudioDeviceInfo.TYPE_HEARING_AID, null)
+                            : setHearingAidCommunicationDevice();
+                }
+                return true;
+            }
+            return false;
+        } else if (callProfile == BluetoothProfile.HEADSET) {
             boolean success = mBluetoothAdapter.setActiveDevice(device,
                 BluetoothAdapter.ACTIVE_DEVICE_PHONE_CALL);
             if (!success) {
@@ -647,7 +736,9 @@
     }
 
     public boolean isInbandRingingEnabled() {
-        BluetoothDevice activeDevice = mBluetoothRouteManager.getBluetoothAudioConnectedDevice();
+        // Get the inband ringing enabled status of expected BT device to route call audio instead
+        // of using the address of currently connected device.
+        BluetoothDevice activeDevice = mBluetoothRouteManager.getMostRecentlyReportedActiveDevice();
         Log.i(this, "isInbandRingingEnabled: activeDevice: " + activeDevice);
         if (mBluetoothRouteManager.isCachedLeAudioDevice(activeDevice)) {
             if (mBluetoothLeAudioService == null) {
diff --git a/src/com/android/server/telecom/bluetooth/BluetoothRouteManager.java b/src/com/android/server/telecom/bluetooth/BluetoothRouteManager.java
index 7966f73..235ba56 100644
--- a/src/com/android/server/telecom/bluetooth/BluetoothRouteManager.java
+++ b/src/com/android/server/telecom/bluetooth/BluetoothRouteManager.java
@@ -17,12 +17,14 @@
 package com.android.server.telecom.bluetooth;
 
 import android.bluetooth.BluetoothAdapter;
+import android.bluetooth.BluetoothClass;
 import android.bluetooth.BluetoothDevice;
 import android.bluetooth.BluetoothHeadset;
 import android.bluetooth.BluetoothHearingAid;
 import android.bluetooth.BluetoothProfile;
 import android.bluetooth.BluetoothLeAudio;
 import android.content.Context;
+import android.media.AudioDeviceInfo;
 import android.os.Message;
 import android.telecom.Log;
 import android.telecom.Logging.Session;
@@ -33,8 +35,10 @@
 import com.android.internal.util.IState;
 import com.android.internal.util.State;
 import com.android.internal.util.StateMachine;
+import com.android.server.telecom.CallAudioCommunicationDeviceTracker;
 import com.android.server.telecom.TelecomSystem;
 import com.android.server.telecom.Timeouts;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import java.util.ArrayList;
 import java.util.Collection;
@@ -43,6 +47,7 @@
 import java.util.LinkedHashSet;
 import java.util.List;
 import java.util.Map;
+import java.util.List;
 import java.util.Objects;
 import java.util.Optional;
 import java.util.Set;
@@ -78,6 +83,7 @@
         void onBluetoothActiveDevicePresent();
         void onBluetoothActiveDeviceGone();
         void onBluetoothAudioConnected();
+        void onBluetoothAudioConnecting();
         void onBluetoothAudioDisconnected();
         /**
          * This gets called when we get an unexpected state change from Bluetooth. Their stack does
@@ -131,7 +137,8 @@
         @Override
         public void enter() {
             BluetoothDevice erroneouslyConnectedDevice = getBluetoothAudioConnectedDevice();
-            if (erroneouslyConnectedDevice != null) {
+            if (erroneouslyConnectedDevice != null &&
+                !erroneouslyConnectedDevice.equals(mHearingAidActiveDeviceCache)) {
                 Log.w(LOG_TAG, "Entering AudioOff state but device %s appears to be connected. " +
                         "Switching to audio-on state for that device.", erroneouslyConnectedDevice);
                 // change this to just transition to the new audio on state
@@ -231,8 +238,7 @@
             sendMessageDelayed(CONNECTION_TIMEOUT, args,
                     mTimeoutsAdapter.getBluetoothPendingTimeoutMillis(
                             mContext.getContentResolver()));
-            // Pretend like audio is connected when communicating w/ CARSM.
-            mListener.onBluetoothAudioConnected();
+            mListener.onBluetoothAudioConnecting();
         }
 
         @Override
@@ -250,6 +256,27 @@
             SomeArgs args = (SomeArgs) msg.obj;
             String address = (String) args.arg2;
             boolean switchingBtDevices = !Objects.equals(mDeviceAddress, address);
+
+            if (switchingBtDevices == true) { // check if it is an hearing aid pair
+                BluetoothAdapter bluetoothAdapter = mDeviceManager.getBluetoothAdapter();
+                if (bluetoothAdapter != null) {
+                    List<BluetoothDevice> activeHearingAids =
+                      bluetoothAdapter.getActiveDevices(BluetoothProfile.HEARING_AID);
+                    for (BluetoothDevice hearingAid : activeHearingAids) {
+                        if (hearingAid != null) {
+                            String hearingAidAddress = hearingAid.getAddress();
+                            if (hearingAidAddress != null) {
+                                if (hearingAidAddress.equals(address) ||
+                                    hearingAidAddress.equals(mDeviceAddress)) {
+                                    switchingBtDevices = false;
+                                    break;
+                                }
+                            }
+                        }
+                    }
+
+                }
+            }
             try {
                 switch (msg.what) {
                     case NEW_DEVICE_CONNECTED:
@@ -391,8 +418,13 @@
                         String actualAddress = connectBtAudio(address,
                             true /* switchingBtDevices*/);
                         if (actualAddress != null) {
-                            transitionTo(getConnectingStateForAddress(address,
-                                    "AudioConnected/CONNECT_BT"));
+                            if (mFeatureFlags.useActualAddressToEnterConnectingState()) {
+                                transitionTo(getConnectingStateForAddress(actualAddress,
+                                        "AudioConnected/CONNECT_BT"));
+                            } else {
+                                transitionTo(getConnectingStateForAddress(address,
+                                        "AudioConnected/CONNECT_BT"));
+                            }
                         } else {
                             Log.w(LOG_TAG, "Tried to connect to %s but failed" +
                                     " to connect to any BT device.", (String) args.arg2);
@@ -469,15 +501,21 @@
     private BluetoothDevice mHearingAidActiveDeviceCache = null;
     private BluetoothDevice mLeAudioActiveDeviceCache = null;
     private BluetoothDevice mMostRecentlyReportedActiveDevice = null;
+    private CallAudioCommunicationDeviceTracker mCommunicationDeviceTracker;
+    private FeatureFlags mFeatureFlags;
 
     public BluetoothRouteManager(Context context, TelecomSystem.SyncRoot lock,
-            BluetoothDeviceManager deviceManager, Timeouts.Adapter timeoutsAdapter) {
+            BluetoothDeviceManager deviceManager, Timeouts.Adapter timeoutsAdapter,
+            CallAudioCommunicationDeviceTracker communicationDeviceTracker,
+            FeatureFlags featureFlags) {
         super(BluetoothRouteManager.class.getSimpleName());
         mContext = context;
         mLock = lock;
         mDeviceManager = deviceManager;
         mDeviceManager.setBluetoothRouteManager(this);
         mTimeoutsAdapter = timeoutsAdapter;
+        mCommunicationDeviceTracker = communicationDeviceTracker;
+        mFeatureFlags = featureFlags;
 
         mAudioOffState = new AudioOffState();
         addState(mAudioOffState);
@@ -621,12 +659,22 @@
         if (deviceType == BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO) {
             mLeAudioActiveDeviceCache = device;
             if (device == null) {
-                mDeviceManager.clearLeAudioCommunicationDevice();
+                if (mFeatureFlags.callAudioCommunicationDeviceRefactor()) {
+                    mCommunicationDeviceTracker.clearCommunicationDevice(
+                            AudioDeviceInfo.TYPE_BLE_HEADSET);
+                } else {
+                    mDeviceManager.clearLeAudioCommunicationDevice();
+                }
             }
         } else if (deviceType == BluetoothDeviceManager.DEVICE_TYPE_HEARING_AID) {
             mHearingAidActiveDeviceCache = device;
             if (device == null) {
-                mDeviceManager.clearHearingAidCommunicationDevice();
+                if (mFeatureFlags.callAudioCommunicationDeviceRefactor()) {
+                    mCommunicationDeviceTracker.clearCommunicationDevice(
+                            AudioDeviceInfo.TYPE_HEARING_AID);
+                } else {
+                    mDeviceManager.clearHearingAidCommunicationDevice();
+                }
             }
         } else if (deviceType == BluetoothDeviceManager.DEVICE_TYPE_HEADSET) {
             mHfpActiveDeviceCache = device;
@@ -645,6 +693,10 @@
         }
     }
 
+    public BluetoothDevice getMostRecentlyReportedActiveDevice() {
+        return mMostRecentlyReportedActiveDevice;
+    }
+
     public boolean hasBtActiveDevice() {
         return mLeAudioActiveDeviceCache != null ||
                 mHearingAidActiveDeviceCache != null ||
@@ -663,6 +715,33 @@
         return mDeviceManager.getUniqueConnectedDevices();
     }
 
+    public boolean isWatch(BluetoothDevice device) {
+        if (device == null) {
+            Log.i(this, "isWatch: device is null. Returning false");
+            return false;
+        }
+
+        BluetoothClass deviceClass = device.getBluetoothClass();
+        if (deviceClass != null && deviceClass.getDeviceClass()
+                == BluetoothClass.Device.WEARABLE_WRIST_WATCH) {
+            Log.i(this, "isWatch: bluetooth class component is a WEARABLE_WRIST_WATCH.");
+            return true;
+        }
+
+        // Check metadata
+        byte[] deviceType = device.getMetadata(BluetoothDevice.METADATA_DEVICE_TYPE);
+        if (deviceType == null) {
+            return false;
+        }
+        String deviceTypeStr = new String(deviceType);
+        if (deviceTypeStr.equals(BluetoothDevice.DEVICE_TYPE_WATCH)) {
+            Log.i(this, "isWatch: bluetooth device type is DEVICE_TYPE_WATCH.");
+            return true;
+        }
+
+        return false;
+    }
+
     private String connectBtAudio(String address, boolean switchingBtDevices) {
         return connectBtAudio(address, 0, switchingBtDevices);
     }
@@ -692,10 +771,19 @@
                 ? address : getActiveDeviceAddress();
         if (actualAddress == null) {
             Log.i(this, "No device specified and BT stack has no active device."
-                    + " Using arbitrary device");
+                    + " Using arbitrary device - except watch");
             if (deviceList.size() > 0) {
-                actualAddress = deviceList.iterator().next().getAddress();
-            } else {
+                for (BluetoothDevice device : deviceList) {
+                    if (mFeatureFlags.ignoreAutoRouteToWatchDevice() && isWatch(device)) {
+                        Log.i(this, "Skipping a watch device: " + device);
+                        continue;
+                    }
+                    actualAddress = device.getAddress();
+                    break;
+                }
+            }
+
+            if (actualAddress == null) {
                 Log.i(this, "No devices available at all. Not connecting.");
                 return null;
             }
@@ -797,21 +885,37 @@
             }
         }
 
+        boolean isHearingAidSetForCommunication =
+                mFeatureFlags.callAudioCommunicationDeviceRefactor()
+                ? mCommunicationDeviceTracker.isAudioDeviceSetForType(
+                        AudioDeviceInfo.TYPE_HEARING_AID)
+                : mDeviceManager.isHearingAidSetAsCommunicationDevice();
         if (bluetoothHearingAid != null) {
-            if (mDeviceManager.isHearingAidSetAsCommunicationDevice()) {
-                for (BluetoothDevice device : bluetoothAdapter.getActiveDevices(
-                        BluetoothProfile.HEARING_AID)) {
-                    if (device != null) {
-                        hearingAidActiveDevice = device;
-                        activeDevices++;
-                        break;
+            if (isHearingAidSetForCommunication) {
+                List<BluetoothDevice> hearingAidsActiveDevices = bluetoothAdapter.getActiveDevices(
+                        BluetoothProfile.HEARING_AID);
+                if (hearingAidsActiveDevices.contains(mHearingAidActiveDeviceCache)) {
+                    hearingAidActiveDevice = mHearingAidActiveDeviceCache;
+                    activeDevices++;
+                } else {
+                    for (BluetoothDevice device : hearingAidsActiveDevices) {
+                        if (device != null) {
+                            hearingAidActiveDevice = device;
+                            activeDevices++;
+                            break;
+                        }
                     }
                 }
             }
         }
 
+        boolean isLeAudioSetForCommunication =
+                mFeatureFlags.callAudioCommunicationDeviceRefactor()
+                        ? mCommunicationDeviceTracker.isAudioDeviceSetForType(
+                        AudioDeviceInfo.TYPE_BLE_HEADSET)
+                        : mDeviceManager.isLeAudioCommunicationDevice();
         if (bluetoothLeAudio != null) {
-            if (mDeviceManager.isLeAudioCommunicationDevice()) {
+            if (isLeAudioSetForCommunication) {
                 for (BluetoothDevice device : bluetoothAdapter.getActiveDevices(
                         BluetoothProfile.LE_AUDIO)) {
                     if (device != null) {
diff --git a/src/com/android/server/telecom/bluetooth/BluetoothStateReceiver.java b/src/com/android/server/telecom/bluetooth/BluetoothStateReceiver.java
index 20af7b5..d2521ac 100644
--- a/src/com/android/server/telecom/bluetooth/BluetoothStateReceiver.java
+++ b/src/com/android/server/telecom/bluetooth/BluetoothStateReceiver.java
@@ -16,6 +16,7 @@
 
 package com.android.server.telecom.bluetooth;
 
+import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothDevice;
 import android.bluetooth.BluetoothHeadset;
 import android.bluetooth.BluetoothHearingAid;
@@ -25,10 +26,14 @@
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
+import android.media.AudioDeviceInfo;
+import android.os.Bundle;
 import android.telecom.Log;
 import android.telecom.Logging.Session;
 
 import com.android.internal.os.SomeArgs;
+import com.android.server.telecom.CallAudioCommunicationDeviceTracker;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import static com.android.server.telecom.bluetooth.BluetoothRouteManager.BT_AUDIO_IS_ON;
 import static com.android.server.telecom.bluetooth.BluetoothRouteManager.BT_AUDIO_LOST;
@@ -54,6 +59,8 @@
     private boolean mIsInCall = false;
     private final BluetoothRouteManager mBluetoothRouteManager;
     private final BluetoothDeviceManager mBluetoothDeviceManager;
+    private CallAudioCommunicationDeviceTracker mCommunicationDeviceTracker;
+    private FeatureFlags mFeatureFlags;
 
     public void onReceive(Context context, Intent intent) {
         Log.startSession("BSR.oR");
@@ -84,7 +91,7 @@
                 intent.getIntExtra(BluetoothHeadset.EXTRA_STATE,
                         BluetoothHeadset.STATE_AUDIO_DISCONNECTED);
         BluetoothDevice device =
-                intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
+                intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE, BluetoothDevice.class);
         if (device == null) {
             Log.w(LOG_TAG, "Got null device from broadcast. " +
                     "Ignoring.");
@@ -115,7 +122,7 @@
         int bluetoothHeadsetState = intent.getIntExtra(BluetoothHeadset.EXTRA_STATE,
                 BluetoothHeadset.STATE_DISCONNECTED);
         BluetoothDevice device =
-                intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
+                intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE, BluetoothDevice.class);
 
         if (device == null) {
             Log.w(LOG_TAG, "Got null device from broadcast. " +
@@ -149,7 +156,7 @@
 
     private void handleActiveDeviceChanged(Intent intent) {
         BluetoothDevice device =
-                intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE);
+                intent.getParcelableExtra(BluetoothDevice.EXTRA_DEVICE, BluetoothDevice.class);
 
         int deviceType;
         if (BluetoothLeAudio.ACTION_LE_AUDIO_ACTIVE_DEVICE_CHANGED.equals(intent.getAction())) {
@@ -181,19 +188,49 @@
                 }
                 args.arg2 = device.getAddress();
 
+                boolean usePreferredAudioProfile = false;
+                BluetoothAdapter bluetoothAdapter = mBluetoothDeviceManager.getBluetoothAdapter();
+                int preferredDuplexProfile = BluetoothProfile.LE_AUDIO;
+                if (bluetoothAdapter != null) {
+                    Bundle preferredAudioProfiles = bluetoothAdapter.getPreferredAudioProfiles(
+                            device);
+                    if (preferredAudioProfiles != null && !preferredAudioProfiles.isEmpty()
+                            && preferredAudioProfiles.getInt(BluetoothAdapter.AUDIO_MODE_DUPLEX)
+                            != 0) {
+                        Log.i(this, "Preferred duplex profile for device=" + device + " is "
+                                + preferredAudioProfiles.getInt(
+                                BluetoothAdapter.AUDIO_MODE_DUPLEX));
+                        usePreferredAudioProfile = true;
+                        preferredDuplexProfile =
+                                preferredAudioProfiles.getInt(BluetoothAdapter.AUDIO_MODE_DUPLEX);
+                    }
+                }
+
                 if (deviceType == BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO) {
                     /* In Le Audio case, once device got Active, the Telecom needs to make sure it
                      * is set as communication device before we can say that BT_AUDIO_IS_ON
                      */
-                    if (!mBluetoothDeviceManager.setLeAudioCommunicationDevice()) {
+                    boolean isLeAudioSetForCommunication =
+                            mFeatureFlags.callAudioCommunicationDeviceRefactor()
+                                    ? mCommunicationDeviceTracker.setCommunicationDevice(
+                                    AudioDeviceInfo.TYPE_BLE_HEADSET, device)
+                                    : mBluetoothDeviceManager.setLeAudioCommunicationDevice();
+                    if ((!usePreferredAudioProfile
+                            || preferredDuplexProfile == BluetoothProfile.LE_AUDIO)
+                            && !isLeAudioSetForCommunication) {
                         Log.w(LOG_TAG,
                                 "Device %s cannot be use as LE audio communication device.",
                                 device);
                         return;
                     }
                 } else {
+                    boolean isHearingAidSetForCommunication =
+                            mFeatureFlags.callAudioCommunicationDeviceRefactor()
+                            ? mCommunicationDeviceTracker.setCommunicationDevice(
+                                    AudioDeviceInfo.TYPE_HEARING_AID, null)
+                            : mBluetoothDeviceManager.setHearingAidCommunicationDevice();
                     /* deviceType == BluetoothDeviceManager.DEVICE_TYPE_HEARING_AID */
-                    if (!mBluetoothDeviceManager.setHearingAidCommunicationDevice()) {
+                    if (!isHearingAidSetForCommunication) {
                         Log.w(LOG_TAG,
                                 "Device %s cannot be use as hearing aid communication device.",
                                 device);
@@ -210,9 +247,13 @@
     }
 
     public BluetoothStateReceiver(BluetoothDeviceManager deviceManager,
-            BluetoothRouteManager routeManager) {
+            BluetoothRouteManager routeManager,
+            CallAudioCommunicationDeviceTracker communicationDeviceTracker,
+            FeatureFlags featureFlags) {
         mBluetoothDeviceManager = deviceManager;
         mBluetoothRouteManager = routeManager;
+        mCommunicationDeviceTracker = communicationDeviceTracker;
+        mFeatureFlags = featureFlags;
     }
 
     public void setIsInCall(boolean isInCall) {
diff --git a/src/com/android/server/telecom/callfiltering/BlockCheckerFilter.java b/src/com/android/server/telecom/callfiltering/BlockCheckerFilter.java
index 36f2077..64060c8 100644
--- a/src/com/android/server/telecom/callfiltering/BlockCheckerFilter.java
+++ b/src/com/android/server/telecom/callfiltering/BlockCheckerFilter.java
@@ -126,6 +126,7 @@
                     .setShouldReject(true)
                     .setShouldAddToCallLog(true)
                     .setShouldShowNotification(false)
+                    .setShouldSilence(true)
                     .setCallBlockReason(getBlockReason(blockStatus))
                     .setCallScreeningAppName(null)
                     .setCallScreeningComponentName(null)
diff --git a/src/com/android/server/telecom/callfiltering/IncomingCallFilterGraphProvider.java b/src/com/android/server/telecom/callfiltering/IncomingCallFilterGraphProvider.java
new file mode 100644
index 0000000..1501280
--- /dev/null
+++ b/src/com/android/server/telecom/callfiltering/IncomingCallFilterGraphProvider.java
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.telecom.callfiltering;
+
+import android.content.Context;
+
+import com.android.server.telecom.Call;
+import com.android.server.telecom.TelecomSystem;
+import com.android.server.telecom.Timeouts;
+
+/**
+ * Interface to provide a {@link IncomingCallFilterGraph}. This class serve for unit test purpose
+ * to mock an incoming call filter graph in test code.
+ */
+public interface IncomingCallFilterGraphProvider {
+
+
+    /**
+     * Provide a {@link  IncomingCallFilterGraph}
+     * @param call The call for the filters.
+     * @param listener Callback object to trigger when filtering is done.
+     * @param context An android context.
+     * @param timeoutsAdapter Adapter to provide timeout value for call filtering.
+     * @param lock Telecom lock.
+     * @return
+     */
+    IncomingCallFilterGraph createGraph(Call call, CallFilterResultCallback listener,
+            Context context,
+            Timeouts.Adapter timeoutsAdapter, TelecomSystem.SyncRoot lock);
+}
diff --git a/src/com/android/server/telecom/components/AppUninstallBroadcastReceiver.java b/src/com/android/server/telecom/components/AppUninstallBroadcastReceiver.java
index 3a0d517..b7e5880 100644
--- a/src/com/android/server/telecom/components/AppUninstallBroadcastReceiver.java
+++ b/src/com/android/server/telecom/components/AppUninstallBroadcastReceiver.java
@@ -74,7 +74,7 @@
      * @param packageName The name of the removed package.
      */
     private void handlePackageRemoved(Context context, String packageName) {
-        final TelecomManager telecomManager = TelecomManager.from(context);
+        final TelecomManager telecomManager = context.getSystemService(TelecomManager.class);
         if (telecomManager != null) {
             telecomManager.clearAccountsForPackage(packageName);
         }
diff --git a/src/com/android/server/telecom/components/TelecomService.java b/src/com/android/server/telecom/components/TelecomService.java
index ef85fc7..9287d33 100644
--- a/src/com/android/server/telecom/components/TelecomService.java
+++ b/src/com/android/server/telecom/components/TelecomService.java
@@ -45,6 +45,7 @@
 import com.android.server.telecom.ContactsAsyncHelper;
 import com.android.server.telecom.DefaultDialerCache;
 import com.android.server.telecom.DeviceIdleControllerAdapter;
+import com.android.server.telecom.flags.FeatureFlags;
 import com.android.server.telecom.HeadsetMediaButton;
 import com.android.server.telecom.HeadsetMediaButtonFactory;
 import com.android.server.telecom.InCallWakeLockControllerFactory;
@@ -61,6 +62,7 @@
 import com.android.server.telecom.TelecomWakeLock;
 import com.android.server.telecom.Timeouts;
 import com.android.server.telecom.callfiltering.BlockedNumbersAdapter;
+import com.android.server.telecom.flags.FeatureFlagsImpl;
 import com.android.server.telecom.settings.BlockedNumbersUtil;
 import com.android.server.telecom.ui.IncomingCallNotifier;
 import com.android.server.telecom.ui.MissedCallNotifierImpl;
@@ -115,10 +117,11 @@
                                         Context context,
                                         PhoneAccountRegistrar phoneAccountRegistrar,
                                         DefaultDialerCache defaultDialerCache,
-                                        DeviceIdleControllerAdapter idleControllerAdapter) {
+                                        DeviceIdleControllerAdapter idleControllerAdapter,
+                                        FeatureFlags featureFlags) {
                                     return new MissedCallNotifierImpl(context,
                                             phoneAccountRegistrar, defaultDialerCache,
-                                            idleControllerAdapter);
+                                            idleControllerAdapter, featureFlags);
                                 }
                             },
                             new CallerInfoAsyncQueryFactory() {
@@ -215,6 +218,7 @@
                                 }
                             },
                             Executors.newCachedThreadPool(),
+                            Executors.newSingleThreadExecutor(),
                             new BlockedNumbersAdapter() {
                                 @Override
                                 public boolean shouldShowEmergencyCallNotification(Context
@@ -229,7 +233,8 @@
                                     BlockedNumbersUtil.updateEmergencyCallNotification(context,
                                             showNotification);
                                 }
-                            }));
+                            },
+                            new FeatureFlagsImpl()));
         }
     }
 
diff --git a/src/com/android/server/telecom/components/UserCallIntentProcessor.java b/src/com/android/server/telecom/components/UserCallIntentProcessor.java
index a4602c1..41232c2 100755
--- a/src/com/android/server/telecom/components/UserCallIntentProcessor.java
+++ b/src/com/android/server/telecom/components/UserCallIntentProcessor.java
@@ -105,47 +105,17 @@
             handle = Uri.fromParts(PhoneAccount.SCHEME_SIP, uriString, null);
         }
 
-       if(!isSelfManaged) {
-            // Check DISALLOW_OUTGOING_CALLS restriction. Note: We are skipping this
-            // check in a managed profile user because this check can always be bypassed
-            // by copying and pasting the phone number into the personal dialer.
-            if (!UserUtil.isManagedProfile(mContext, mUserHandle)) {
-                // Only emergency calls are allowed for users with the DISALLOW_OUTGOING_CALLS
-                // restriction.
-                if (!TelephonyUtil.shouldProcessAsEmergency(mContext, handle)) {
-                    final UserManager userManager =
-                            (UserManager) mContext.getSystemService(Context.USER_SERVICE);
-                    if (userManager.hasBaseUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS,
-                            mUserHandle)) {
-                        showErrorDialogForRestrictedOutgoingCall(mContext,
-                                R.string.outgoing_call_not_allowed_user_restriction);
-                        Log.w(this, "Rejecting non-emergency phone call "
-                                + "due to DISALLOW_OUTGOING_CALLS restriction");
-                        return;
-                    } else if (userManager.hasUserRestriction(UserManager.DISALLOW_OUTGOING_CALLS,
-                            mUserHandle)) {
-                        final DevicePolicyManager dpm =
-                                mContext.getSystemService(DevicePolicyManager.class);
-                        if (dpm == null) {
-                            return;
-                        }
-                        final Intent adminSupportIntent = dpm.createAdminSupportIntent(
-                                UserManager.DISALLOW_OUTGOING_CALLS);
-                        if (adminSupportIntent != null) {
-                            mContext.startActivity(adminSupportIntent);
-                        }
-                        return;
-                    }
-                }
-            }
-        }
+       if (UserUtil.hasOutgoingCallsUserRestriction(mContext, mUserHandle,
+               handle, isSelfManaged, UserCallIntentProcessor.class.getCanonicalName())) {
+           return;
+       }
 
         if (!isSelfManaged && !canCallNonEmergency &&
                 !TelephonyUtil.shouldProcessAsEmergency(mContext, handle)) {
-            showErrorDialogForRestrictedOutgoingCall(mContext,
-                    R.string.outgoing_call_not_allowed_no_permission);
-            Log.w(this, "Rejecting non-emergency phone call because "
-                    + android.Manifest.permission.CALL_PHONE + " permission is not granted.");
+            String reason = android.Manifest.permission.CALL_PHONE + " permission is not granted.";
+            UserUtil.showErrorDialogForRestrictedOutgoingCall(mContext,
+                    R.string.outgoing_call_not_allowed_no_permission,
+                    this.getClass().getCanonicalName(), reason);
             return;
         }
 
@@ -187,11 +157,4 @@
         }
         return true;
     }
-
-    private static void showErrorDialogForRestrictedOutgoingCall(Context context, int stringId) {
-        final Intent intent = new Intent(context, ErrorDialogActivity.class);
-        intent.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
-        intent.putExtra(ErrorDialogActivity.ERROR_MESSAGE_ID_EXTRA, stringId);
-        context.startActivityAsUser(intent, UserHandle.CURRENT);
-    }
 }
diff --git a/src/com/android/server/telecom/settings/EnableAccountPreferenceFragment.java b/src/com/android/server/telecom/settings/EnableAccountPreferenceFragment.java
index c2a0500..d9feaff 100644
--- a/src/com/android/server/telecom/settings/EnableAccountPreferenceFragment.java
+++ b/src/com/android/server/telecom/settings/EnableAccountPreferenceFragment.java
@@ -72,7 +72,8 @@
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
-        mTelecomManager = TelecomManager.from(getActivity());
+        Context context = getActivity();
+        mTelecomManager = context.getSystemService(TelecomManager.class);
     }
 
 
diff --git a/src/com/android/server/telecom/ui/MissedCallNotifierImpl.java b/src/com/android/server/telecom/ui/MissedCallNotifierImpl.java
index 6b97f97..25ce0ca 100644
--- a/src/com/android/server/telecom/ui/MissedCallNotifierImpl.java
+++ b/src/com/android/server/telecom/ui/MissedCallNotifierImpl.java
@@ -20,6 +20,7 @@
 import static android.app.admin.DevicePolicyResources.Strings.Telecomm.NOTIFICATION_MISSED_WORK_CALL_TITLE;
 
 import android.annotation.NonNull;
+import android.annotation.Nullable;
 import android.app.BroadcastOptions;
 import android.app.Notification;
 import android.app.NotificationManager;
@@ -42,6 +43,7 @@
 import android.os.Binder;
 import android.os.Bundle;
 import android.os.UserHandle;
+import android.provider.CallLog;
 import android.provider.CallLog.Calls;
 import android.telecom.CallerInfo;
 import android.telecom.Log;
@@ -62,6 +64,7 @@
 import com.android.server.telecom.Constants;
 import com.android.server.telecom.DefaultDialerCache;
 import com.android.server.telecom.DeviceIdleControllerAdapter;
+import com.android.server.telecom.flags.FeatureFlags;
 import com.android.server.telecom.MissedCallNotifier;
 import com.android.server.telecom.PhoneAccountRegistrar;
 import com.android.server.telecom.R;
@@ -87,7 +90,8 @@
         MissedCallNotifier makeMissedCallNotifierImpl(Context context,
                 PhoneAccountRegistrar phoneAccountRegistrar,
                 DefaultDialerCache defaultDialerCache,
-                DeviceIdleControllerAdapter deviceIdleControllerAdapter);
+                DeviceIdleControllerAdapter deviceIdleControllerAdapter,
+                FeatureFlags featureFlags);
     }
 
     public interface NotificationBuilderFactory {
@@ -141,19 +145,22 @@
     private final Map<UserHandle, Integer> mMissedCallCounts;
 
     private Set<UserHandle> mUsersToLoadAfterBootComplete = new ArraySet<>();
+    private FeatureFlags mFeatureFlags;
 
     public MissedCallNotifierImpl(Context context, PhoneAccountRegistrar phoneAccountRegistrar,
             DefaultDialerCache defaultDialerCache,
-            DeviceIdleControllerAdapter deviceIdleControllerAdapter) {
+            DeviceIdleControllerAdapter deviceIdleControllerAdapter,
+            FeatureFlags featureFlags) {
         this(context, phoneAccountRegistrar, defaultDialerCache,
-                new DefaultNotificationBuilderFactory(), deviceIdleControllerAdapter);
+                new DefaultNotificationBuilderFactory(), deviceIdleControllerAdapter, featureFlags);
     }
 
     public MissedCallNotifierImpl(Context context,
             PhoneAccountRegistrar phoneAccountRegistrar,
             DefaultDialerCache defaultDialerCache,
             NotificationBuilderFactory notificationBuilderFactory,
-            DeviceIdleControllerAdapter deviceIdleControllerAdapter) {
+            DeviceIdleControllerAdapter deviceIdleControllerAdapter,
+            FeatureFlags featureFlags) {
         mContext = context;
         mPhoneAccountRegistrar = phoneAccountRegistrar;
         mNotificationManager =
@@ -163,6 +170,7 @@
 
         mNotificationBuilderFactory = notificationBuilderFactory;
         mMissedCallCounts = new ArrayMap<>();
+        mFeatureFlags = featureFlags;
     }
 
     /** Clears missed call notification and marks the call log's missed calls as read. */
@@ -261,17 +269,17 @@
     }
 
     private void sendNotificationThroughDefaultDialer(String dialerPackage, CallInfo callInfo,
-            UserHandle userHandle, int missedCallCount) {
+            UserHandle userHandle, int missedCallCount, @Nullable Uri uri) {
         Intent intent = getShowMissedCallIntentForDefaultDialer(dialerPackage)
             .setFlags(Intent.FLAG_RECEIVER_FOREGROUND)
             .putExtra(TelecomManager.EXTRA_CLEAR_MISSED_CALLS_INTENT,
                     createClearMissedCallsPendingIntent(userHandle))
             .putExtra(TelecomManager.EXTRA_NOTIFICATION_COUNT, missedCallCount)
+            .putExtra(TelecomManager.EXTRA_CALL_LOG_URI, uri)
             .putExtra(TelecomManager.EXTRA_NOTIFICATION_PHONE_NUMBER,
                     callInfo == null ? null : callInfo.getPhoneNumber())
             .putExtra(TelecomManager.EXTRA_PHONE_ACCOUNT_HANDLE,
                     callInfo == null ? null : callInfo.getPhoneAccountHandle());
-
         if (missedCallCount == 1 && callInfo != null) {
             final Uri handleUri = callInfo.getHandle();
             String handle = handleUri == null ? null : handleUri.getSchemeSpecificPart();
@@ -295,7 +303,7 @@
      * @param callInfo The missed call.
      */
     @Override
-    public void showMissedCallNotification(@NonNull CallInfo callInfo) {
+    public void showMissedCallNotification(@NonNull CallInfo callInfo, @Nullable Uri uri) {
         final PhoneAccountHandle phoneAccountHandle = callInfo.getPhoneAccountHandle();
         final PhoneAccount phoneAccount =
                 mPhoneAccountRegistrar.getPhoneAccountUnchecked(phoneAccountHandle);
@@ -306,10 +314,11 @@
         } else {
             userHandle = phoneAccountHandle.getUserHandle();
         }
-        showMissedCallNotification(callInfo, userHandle);
+        showMissedCallNotification(callInfo, userHandle, uri);
     }
 
-    private void showMissedCallNotification(@NonNull CallInfo callInfo, UserHandle userHandle) {
+    private void showMissedCallNotification(@NonNull CallInfo callInfo, UserHandle userHandle,
+            @Nullable Uri uri) {
         int missedCallCounts;
         synchronized (mMissedCallCountsLock) {
             Integer currentCount = mMissedCallCounts.get(userHandle);
@@ -324,7 +333,7 @@
         String dialerPackage = getDefaultDialerPackage(userHandle);
         if (shouldManageNotificationThroughDefaultDialer(dialerPackage, userHandle)) {
             sendNotificationThroughDefaultDialer(dialerPackage, callInfo, userHandle,
-                    missedCallCounts);
+                    missedCallCounts, uri);
             return;
         }
 
@@ -446,7 +455,7 @@
         String dialerPackage = getDefaultDialerPackage(userHandle);
         if (shouldManageNotificationThroughDefaultDialer(dialerPackage, userHandle)) {
             sendNotificationThroughDefaultDialer(dialerPackage, null, userHandle,
-                    0 /* missedCallCount */);
+                    /* missedCallCount= */ 0, /* uri= */ null);
             return;
         }
 
@@ -631,6 +640,13 @@
                         while (cursor.moveToNext()) {
                             // Get data about the missed call from the cursor
                             final String handleString = cursor.getString(CALL_LOG_COLUMN_NUMBER);
+                            final Uri uri;
+                            if (mFeatureFlags.addCallUriForMissedCalls()){
+                                uri = Calls.CONTENT_URI.buildUpon().appendPath(
+                                        Long.toString(cursor.getInt(CALL_LOG_COLUMN_ID))).build();
+                            }else{
+                                uri = null;
+                            }
                             final int presentation =
                                     cursor.getInt(CALL_LOG_COLUMN_NUMBER_PRESENTATION);
                             final long date = cursor.getLong(CALL_LOG_COLUMN_DATE);
@@ -663,7 +679,8 @@
                                                 // null, just show the notification.
                                                 CallInfo callInfo = callInfoFactory.makeCallInfo(
                                                         info, null, handle, date);
-                                                showMissedCallNotification(callInfo, userHandle);
+                                                showMissedCallNotification(callInfo, userHandle,
+                                                        /* uri= */ uri);
                                             }
                                         }
 
@@ -678,7 +695,8 @@
                                             }
                                             CallInfo callInfo = callInfoFactory.makeCallInfo(
                                                     info, null, handle, date);
-                                            showMissedCallNotification(callInfo, userHandle);
+                                            showMissedCallNotification(callInfo, userHandle,
+                                                    /* uri= */ uri);
                                         }
                                     }
                             );
diff --git a/src/com/android/server/telecom/voip/SetMuteStateTransaction.java b/src/com/android/server/telecom/voip/SetMuteStateTransaction.java
new file mode 100644
index 0000000..d9f7329
--- /dev/null
+++ b/src/com/android/server/telecom/voip/SetMuteStateTransaction.java
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2024 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.telecom.voip;
+
+import android.util.Log;
+
+import com.android.server.telecom.CallsManager;
+
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.CompletionStage;
+
+/**
+ * This transaction should be used to change the global mute state for transactional
+ * calls. There is currently no way for this transaction to fail.
+ */
+public class SetMuteStateTransaction extends VoipCallTransaction {
+
+    private static final String TAG = SetMuteStateTransaction.class.getSimpleName();
+    private final CallsManager mCallsManager;
+    private final boolean mIsMuted;
+
+    public SetMuteStateTransaction(CallsManager callsManager, boolean isMuted) {
+        super(callsManager.getLock());
+        mCallsManager = callsManager;
+        mIsMuted = isMuted;
+    }
+
+    @Override
+    public CompletionStage<VoipCallTransactionResult> processTransaction(Void v) {
+        Log.d(TAG, "processTransaction");
+        CompletableFuture<VoipCallTransactionResult> future = new CompletableFuture<>();
+
+        mCallsManager.mute(mIsMuted);
+
+        future.complete(new VoipCallTransactionResult(
+                VoipCallTransactionResult.RESULT_SUCCEED,
+                "The Mute State was changed successfully"));
+
+        return future;
+    }
+}
diff --git a/src/com/android/server/telecom/voip/VerifyCallStateChangeTransaction.java b/src/com/android/server/telecom/voip/VerifyCallStateChangeTransaction.java
new file mode 100644
index 0000000..b17dedd
--- /dev/null
+++ b/src/com/android/server/telecom/voip/VerifyCallStateChangeTransaction.java
@@ -0,0 +1,147 @@
+/*
+ * Copyright (C) 2023 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.telecom.voip;
+
+import com.android.internal.annotations.VisibleForTesting;
+import com.android.server.telecom.Call;
+import com.android.server.telecom.CallsManager;
+
+import android.telecom.DisconnectCause;
+import android.telecom.Log;
+
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.CompletionStage;
+import java.util.concurrent.TimeUnit;
+
+/**
+ * VerifyCallStateChangeTransaction is a transaction that verifies a CallState change and has
+ * the ability to disconnect if the CallState is not changed within the timeout window.
+ * <p>
+ * Note: This transaction has a timeout of 2 seconds.
+ */
+public class VerifyCallStateChangeTransaction extends VoipCallTransaction {
+    private static final String TAG = VerifyCallStateChangeTransaction.class.getSimpleName();
+    public static final int FAILURE_CODE = 0;
+    public static final int SUCCESS_CODE = 1;
+    public static final int TIMEOUT_SECONDS = 2;
+    private final Call mCall;
+    private final CallsManager mCallsManager;
+    private final int mTargetCallState;
+    private final boolean mShouldDisconnectUponFailure;
+    private final CompletableFuture<Integer> mCallStateOrTimeoutResult = new CompletableFuture<>();
+    private final CompletableFuture<VoipCallTransactionResult> mTransactionResult =
+            new CompletableFuture<>();
+
+    @VisibleForTesting
+    public Call.CallStateListener mCallStateListenerImpl = new Call.CallStateListener() {
+        @Override
+        public void onCallStateChanged(int newCallState) {
+            Log.d(TAG, "newState=[%d], expectedState=[%d]", newCallState, mTargetCallState);
+            if (newCallState == mTargetCallState) {
+                mCallStateOrTimeoutResult.complete(SUCCESS_CODE);
+            }
+            // NOTE:: keep listening to the call state until the timeout is reached. It's possible
+            // another call state is reached in between...
+        }
+    };
+
+    public VerifyCallStateChangeTransaction(CallsManager callsManager, Call call,
+            int targetCallState, boolean shouldDisconnectUponFailure) {
+        super(callsManager.getLock());
+        mCallsManager = callsManager;
+        mCall = call;
+        mTargetCallState = targetCallState;
+        mShouldDisconnectUponFailure = shouldDisconnectUponFailure;
+    }
+
+    @Override
+    public CompletionStage<VoipCallTransactionResult> processTransaction(Void v) {
+        Log.d(TAG, "processTransaction:");
+        // It's possible the Call is already in the expected call state
+        if (isNewCallStateTargetCallState()) {
+            mTransactionResult.complete(
+                    new VoipCallTransactionResult(VoipCallTransactionResult.RESULT_SUCCEED,
+                            TAG));
+            return mTransactionResult;
+        }
+        initCallStateListenerOnTimeout();
+        // At this point, the mCallStateOrTimeoutResult has been completed. There are 2 scenarios:
+        // (1) newCallState == targetCallState --> the transaction is successful
+        // (2) timeout is reached --> evaluate the current call state and complete the t accordingly
+        // also need to do cleanup for the transaction
+        evaluateCallStateUponChangeOrTimeout();
+
+        return mTransactionResult;
+    }
+
+    private boolean isNewCallStateTargetCallState() {
+        return mCall.getState() == mTargetCallState;
+    }
+
+    private void initCallStateListenerOnTimeout() {
+        mCall.addCallStateListener(mCallStateListenerImpl);
+        mCallStateOrTimeoutResult.completeOnTimeout(FAILURE_CODE, TIMEOUT_SECONDS,
+                TimeUnit.SECONDS);
+    }
+
+    private void evaluateCallStateUponChangeOrTimeout() {
+        mCallStateOrTimeoutResult.thenAcceptAsync((result) -> {
+            Log.i(TAG, "processTransaction: thenAcceptAsync: result=[%s]", result);
+            mCall.removeCallStateListener(mCallStateListenerImpl);
+            if (isNewCallStateTargetCallState()) {
+                mTransactionResult.complete(
+                        new VoipCallTransactionResult(VoipCallTransactionResult.RESULT_SUCCEED,
+                                TAG));
+            } else {
+                maybeDisconnectCall();
+                mTransactionResult.complete(
+                        new VoipCallTransactionResult(VoipCallTransactionResult.RESULT_FAILED,
+                                TAG));
+            }
+        }).exceptionally(exception -> {
+            Log.i(TAG, "hit exception=[%s] while completing future", exception);
+            mTransactionResult.complete(
+                    new VoipCallTransactionResult(VoipCallTransactionResult.RESULT_FAILED,
+                            TAG));
+            return null;
+        });
+    }
+
+    private void maybeDisconnectCall() {
+        if (mShouldDisconnectUponFailure) {
+            mCallsManager.markCallAsDisconnected(mCall,
+                    new DisconnectCause(DisconnectCause.ERROR,
+                            "did not hold in timeout window"));
+            mCallsManager.markCallAsRemoved(mCall);
+        }
+    }
+
+    @VisibleForTesting
+    public CompletableFuture<Integer> getCallStateOrTimeoutResult() {
+        return mCallStateOrTimeoutResult;
+    }
+
+    @VisibleForTesting
+    public CompletableFuture<VoipCallTransactionResult> getTransactionResult() {
+        return mTransactionResult;
+    }
+
+    @VisibleForTesting
+    public Call.CallStateListener getCallStateListenerImpl() {
+        return mCallStateListenerImpl;
+    }
+}
diff --git a/src/com/android/server/telecom/voip/VoipCallMonitor.java b/src/com/android/server/telecom/voip/VoipCallMonitor.java
index 3779a6d..8f6ad51 100644
--- a/src/com/android/server/telecom/voip/VoipCallMonitor.java
+++ b/src/com/android/server/telecom/voip/VoipCallMonitor.java
@@ -16,6 +16,12 @@
 
 package com.android.server.telecom.voip;
 
+import static android.app.ForegroundServiceDelegationOptions.DELEGATION_SERVICE_PHONE_CALL;
+import static android.content.pm.ServiceInfo.FOREGROUND_SERVICE_TYPE_CAMERA;
+import static android.content.pm.ServiceInfo.FOREGROUND_SERVICE_TYPE_CONNECTED_DEVICE;
+import static android.content.pm.ServiceInfo.FOREGROUND_SERVICE_TYPE_MICROPHONE;
+import static android.content.pm.ServiceInfo.FOREGROUND_SERVICE_TYPE_PHONE_CALL;
+
 import android.app.ActivityManager;
 import android.app.ActivityManagerInternal;
 import android.app.ForegroundServiceDelegationOptions;
@@ -199,8 +205,11 @@
             ForegroundServiceDelegationOptions options = new ForegroundServiceDelegationOptions(pid,
                     uid, handle.getComponentName().getPackageName(), null /* clientAppThread */,
                     false /* isSticky */, String.valueOf(handle.hashCode()),
-                    0 /* foregroundServiceType */,
-                    ForegroundServiceDelegationOptions.DELEGATION_SERVICE_PHONE_CALL);
+                    FOREGROUND_SERVICE_TYPE_PHONE_CALL |
+                    FOREGROUND_SERVICE_TYPE_MICROPHONE |
+                    FOREGROUND_SERVICE_TYPE_CAMERA |
+                    FOREGROUND_SERVICE_TYPE_CONNECTED_DEVICE /* foregroundServiceTypes */,
+                    DELEGATION_SERVICE_PHONE_CALL /* delegationService */);
             ServiceConnection fgsConnection = new ServiceConnection() {
                 @Override
                 public void onServiceConnected(ComponentName name, IBinder service) {
diff --git a/src/com/android/server/telecom/voip/VoipCallTransactionResult.java b/src/com/android/server/telecom/voip/VoipCallTransactionResult.java
index 2916fc6..ffc0255 100644
--- a/src/com/android/server/telecom/voip/VoipCallTransactionResult.java
+++ b/src/com/android/server/telecom/voip/VoipCallTransactionResult.java
@@ -24,13 +24,14 @@
     public static final int RESULT_SUCCEED = 0;
     public static final int RESULT_FAILED = 1;
 
-    private int mResult;
-    private String mMessage;
-    private Call mCall;
+    private final int mResult;
+    private final String mMessage;
+    private final Call mCall;
 
     public VoipCallTransactionResult(int result, String message) {
         mResult = result;
         mMessage = message;
+        mCall = null;
     }
 
     public VoipCallTransactionResult(int result, Call call, String message) {
@@ -70,7 +71,7 @@
                 append("{ VoipCallTransactionResult: [mResult: ").
                 append(mResult).
                 append("], [mCall: ").
-                append(mCall.toString()).
+                append((mCall != null) ? mCall : "null").
                 append("], [mMessage=").
                 append(mMessage).append("]  }").toString();
     }
diff --git a/testapps/src/com/android/server/telecom/testapps/CallNotificationReceiver.java b/testapps/src/com/android/server/telecom/testapps/CallNotificationReceiver.java
index 1549443..ede06c6 100644
--- a/testapps/src/com/android/server/telecom/testapps/CallNotificationReceiver.java
+++ b/testapps/src/com/android/server/telecom/testapps/CallNotificationReceiver.java
@@ -82,6 +82,7 @@
      * @param videoState The video state requested for the incoming call.
      */
     public static void sendIncomingCallIntent(Context context, Uri handle, int videoState) {
+        TelecomManager telecomManager = context.getSystemService(TelecomManager.class);
         PhoneAccountHandle phoneAccount = new PhoneAccountHandle(
                 new ComponentName(context, TestConnectionService.class),
                 CallServiceNotifier.SIM_SUBSCRIPTION_ID);
@@ -94,10 +95,11 @@
             extras.putParcelable(TestConnectionService.EXTRA_HANDLE, handle);
         }
 
-        TelecomManager.from(context).addNewIncomingCall(phoneAccount, extras);
+        telecomManager.addNewIncomingCall(phoneAccount, extras);
     }
 
     public static void sendIncomingRttCallIntent(Context context, Uri handle, int videoState) {
+        TelecomManager telecomManager = context.getSystemService(TelecomManager.class);
         PhoneAccountHandle phoneAccount = new PhoneAccountHandle(
                 new ComponentName(context, TestConnectionService.class),
                 CallServiceNotifier.SIM_SUBSCRIPTION_ID);
@@ -111,11 +113,12 @@
         }
         extras.putBoolean(TelecomManager.EXTRA_START_CALL_WITH_RTT, true);
 
-        TelecomManager.from(context).addNewIncomingCall(phoneAccount, extras);
+        telecomManager.addNewIncomingCall(phoneAccount, extras);
     }
 
     public static void addNewUnknownCall(Context context, Uri handle, Bundle extras) {
         Log.i(TAG, "Adding new unknown call with handle " + handle);
+        TelecomManager telecomManager = context.getSystemService(TelecomManager.class);
         PhoneAccountHandle phoneAccount = new PhoneAccountHandle(
                 new ComponentName(context, TestConnectionService.class),
                 CallServiceNotifier.SIM_SUBSCRIPTION_ID);
@@ -129,7 +132,7 @@
             extras.putParcelable(TestConnectionService.EXTRA_HANDLE, handle);
         }
 
-        TelecomManager.from(context).addNewUnknownCall(phoneAccount, extras);
+        telecomManager.addNewUnknownCall(phoneAccount, extras);
     }
 
     public static void hangupCalls(Context context) {
diff --git a/testapps/src/com/android/server/telecom/testapps/HandoverActivity.java b/testapps/src/com/android/server/telecom/testapps/HandoverActivity.java
index f33022c..d5ddc9b 100644
--- a/testapps/src/com/android/server/telecom/testapps/HandoverActivity.java
+++ b/testapps/src/com/android/server/telecom/testapps/HandoverActivity.java
@@ -17,6 +17,7 @@
 package com.android.server.telecom.testapps;
 
 import android.app.Activity;
+import android.content.Context;
 import android.content.Intent;
 import android.os.Bundle;
 import android.telecom.Log;
@@ -61,7 +62,7 @@
             if (connection != null) {
                 connection.setConnectionDisconnected(DisconnectCause.INCOMING_REJECTED);
                 connection.destroy();
-                TelecomManager tm = TelecomManager.from(this);
+                TelecomManager tm = this.getSystemService(TelecomManager.class);
                 tm.showInCallScreen(false);
             }
             finish();
diff --git a/testapps/src/com/android/server/telecom/testapps/SelfManagedCallList.java b/testapps/src/com/android/server/telecom/testapps/SelfManagedCallList.java
index 273b060..4a7312c 100644
--- a/testapps/src/com/android/server/telecom/testapps/SelfManagedCallList.java
+++ b/testapps/src/com/android/server/telecom/testapps/SelfManagedCallList.java
@@ -123,6 +123,7 @@
 
     public void registerPhoneAccount(Context context, ComponentName componentName, String id,
             Uri address, String name, boolean areCallsLogged) {
+        TelecomManager telecomManager = context.getSystemService(TelecomManager.class);
         PhoneAccountHandle handle = new PhoneAccountHandle(componentName, id);
         mPhoneAccounts.put(id, handle);
         Bundle extras = new Bundle();
@@ -144,7 +145,7 @@
                 .setExtras(extras)
                 .setShortDescription(name);
 
-        TelecomManager.from(context).registerPhoneAccount(builder.build());
+        telecomManager.registerPhoneAccount(builder.build());
     }
 
     public PhoneAccountHandle getPhoneAccountHandle(String id) {
diff --git a/testapps/src/com/android/server/telecom/testapps/SelfManagedCallingActivity.java b/testapps/src/com/android/server/telecom/testapps/SelfManagedCallingActivity.java
index 5cdaf3d..708bae9 100644
--- a/testapps/src/com/android/server/telecom/testapps/SelfManagedCallingActivity.java
+++ b/testapps/src/com/android/server/telecom/testapps/SelfManagedCallingActivity.java
@@ -23,6 +23,7 @@
 import android.app.NotificationManager;
 import android.app.UiModeManager;
 import android.app.role.RoleManager;
+import android.content.Context;
 import android.content.Intent;
 import android.media.AudioAttributes;
 import android.media.RingtoneManager;
@@ -190,7 +191,7 @@
     }
 
     private void placeOutgoingCall() {
-        TelecomManager tm = TelecomManager.from(this);
+        TelecomManager tm = this.getSystemService(TelecomManager.class);
         PhoneAccountHandle phoneAccountHandle = getSelectedPhoneAccountHandle();
 
         if (mCheckIfPermittedBeforeCalling.isChecked()) {
@@ -215,7 +216,7 @@
     }
 
     private void placeSelfManagedOutgoingCall() {
-        TelecomManager tm = TelecomManager.from(this);
+        TelecomManager tm = this.getSystemService(TelecomManager.class);
         PhoneAccountHandle phoneAccountHandle = getSelectedPhoneAccountHandle();
 
         if (mCheckIfPermittedBeforeCalling.isChecked()) {
@@ -233,14 +234,14 @@
     }
 
     private void initiateHandover() {
-        TelecomManager tm = TelecomManager.from(this);
+        TelecomManager tm = this.getSystemService(TelecomManager.class);
         PhoneAccountHandle phoneAccountHandle = getSelectedPhoneAccountHandle();
         Uri address = Uri.parse(mNumber.getText().toString());
         tm.acceptHandover(address, VideoProfile.STATE_BIDIRECTIONAL, phoneAccountHandle);
     }
 
     private void placeIncomingCall() {
-        TelecomManager tm = TelecomManager.from(this);
+        TelecomManager tm = this.getSystemService(TelecomManager.class);
         PhoneAccountHandle phoneAccountHandle = getSelectedPhoneAccountHandle();
 
         if (mCheckIfPermittedBeforeCalling.isChecked()) {
@@ -263,7 +264,7 @@
     }
 
     private void placeSelfManagedIncomingCall() {
-        TelecomManager tm = TelecomManager.from(this);
+        TelecomManager tm = this.getSystemService(TelecomManager.class);
         PhoneAccountHandle phoneAccountHandle = mCallList.getPhoneAccountHandle(
                 SelfManagedCallList.SELF_MANAGED_ACCOUNT_1A);
 
diff --git a/tests/src/com/android/server/telecom/tests/AnalyticsTests.java b/tests/src/com/android/server/telecom/tests/AnalyticsTests.java
index 5da7f31..148db51 100644
--- a/tests/src/com/android/server/telecom/tests/AnalyticsTests.java
+++ b/tests/src/com/android/server/telecom/tests/AnalyticsTests.java
@@ -25,8 +25,8 @@
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.anyInt;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.when;
@@ -47,11 +47,11 @@
 import android.telecom.VideoProfile;
 import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
-import android.test.suitebuilder.annotation.MediumTest;
-import android.test.suitebuilder.annotation.SmallTest;
 import android.util.Base64;
 
 import androidx.test.filters.FlakyTest;
+import androidx.test.filters.MediumTest;
+import androidx.test.filters.SmallTest;
 
 import com.android.internal.util.IndentingPrintWriter;
 import com.android.server.telecom.Analytics;
@@ -381,7 +381,7 @@
 
         waitForHandlerAction(
                 mTelecomSystem.getCallsManager().getCallAudioManager()
-                        .getCallAudioRouteStateMachine().getHandler(),
+                        .getCallAudioRouteAdapter().getAdapterHandler(),
                 TEST_TIMEOUT);
         waitForHandlerAction(
                 mTelecomSystem.getCallsManager().getCallAudioManager()
@@ -391,7 +391,7 @@
         mInCallServiceFixtureX.getInCallAdapter().setAudioRoute(CallAudioState.ROUTE_SPEAKER, null);
         waitForHandlerAction(
                 mTelecomSystem.getCallsManager().getCallAudioManager()
-                        .getCallAudioRouteStateMachine().getHandler(),
+                        .getCallAudioRouteAdapter().getAdapterHandler(),
                 TEST_TIMEOUT);
         waitForHandlerAction(
                 mTelecomSystem.getCallsManager().getCallAudioManager()
diff --git a/tests/src/com/android/server/telecom/tests/BasicCallTests.java b/tests/src/com/android/server/telecom/tests/BasicCallTests.java
index bd81a2f..9ca3de1 100644
--- a/tests/src/com/android/server/telecom/tests/BasicCallTests.java
+++ b/tests/src/com/android/server/telecom/tests/BasicCallTests.java
@@ -24,11 +24,11 @@
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.anyInt;
-import static org.mockito.Matchers.anyString;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Matchers.isNull;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.ArgumentMatchers.isNull;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.timeout;
@@ -39,22 +39,20 @@
 
 import android.content.Context;
 import android.content.IContentProvider;
-import android.content.pm.PackageManager;
-import android.media.AudioDeviceInfo;
 import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.graphics.drawable.Icon;
+import android.media.AudioDeviceInfo;
 import android.media.AudioManager;
 import android.net.Uri;
 import android.os.Binder;
 import android.os.Bundle;
-import android.os.Handler;
-import android.os.Looper;
 import android.os.Process;
 import android.os.UserHandle;
-import android.os.UserManager;
 import android.provider.BlockedNumberContract;
 import android.telecom.Call;
 import android.telecom.CallAudioState;
+import android.telecom.CallerInfo;
 import android.telecom.Connection;
 import android.telecom.ConnectionRequest;
 import android.telecom.DisconnectCause;
@@ -65,14 +63,13 @@
 import android.telecom.StatusHints;
 import android.telecom.TelecomManager;
 import android.telecom.VideoProfile;
-import android.test.suitebuilder.annotation.LargeTest;
-import android.test.suitebuilder.annotation.MediumTest;
 
 import androidx.test.filters.FlakyTest;
+import androidx.test.filters.LargeTest;
+import androidx.test.filters.MediumTest;
 import androidx.test.filters.SmallTest;
 
 import com.android.internal.telecom.IInCallAdapter;
-import android.telecom.CallerInfo;
 
 import com.google.common.base.Predicate;
 
@@ -110,6 +107,7 @@
         doReturn(mContext).when(mContext).createContextAsUser(any(UserHandle.class), anyInt());
         mPackageManager = mContext.getPackageManager();
         when(mPackageManager.getPackageUid(anyString(), eq(0))).thenReturn(Binder.getCallingUid());
+        when(mFeatureFlags.telecomResolveHiddenDependencies()).thenReturn(false);
     }
 
     @Override
@@ -626,6 +624,48 @@
 
     @LargeTest
     @Test
+    public void testIncomingThenOutgoingCalls_AssociatedUsersNotEqual() throws Exception {
+        when(mFeatureFlags.associatedUserRefactorForWorkProfile()).thenReturn(true);
+        InCallServiceFixture.setIgnoreOverrideAdapterFlag(true);
+
+        // Receive incoming call via mPhoneAccountMultiUser
+        IdPair incoming = startAndMakeActiveIncomingCall("650-555-2323",
+                mPhoneAccountMultiUser.getAccountHandle(), mConnectionServiceFixtureA);
+        waitForHandlerAction(mConnectionServiceFixtureA.mConnectionServiceDelegate.getHandler(),
+                TEST_TIMEOUT);
+        // Make outgoing call on mPhoneAccountMultiUser (unassociated sim to simulate guest/
+        // secondary user scenario where both MO/MT calls exist).
+        IdPair outgoing = startAndMakeActiveOutgoingCall("650-555-1212",
+                mPhoneAccountMultiUser.getAccountHandle(), mConnectionServiceFixtureA);
+        waitForHandlerAction(mConnectionServiceFixtureA.mConnectionServiceDelegate.getHandler(),
+                TEST_TIMEOUT);
+
+        // Outgoing call should be on hold while incoming call is made active
+        mConnectionServiceFixtureA.mConnectionById.get(incoming.mConnectionId).state =
+                Connection.STATE_HOLDING;
+
+        // Swap calls and verify that outgoing call is now the active call while the incoming call
+        // is the held call.
+        mConnectionServiceFixtureA.sendSetOnHold(outgoing.mConnectionId);
+        waitForHandlerAction(mConnectionServiceFixtureA.mConnectionServiceDelegate.getHandler(),
+                TEST_TIMEOUT);
+        assertEquals(Call.STATE_HOLDING,
+                mInCallServiceFixtureX.getCall(outgoing.mCallId).getState());
+        assertEquals(Call.STATE_ACTIVE,
+                mInCallServiceFixtureX.getCall(incoming.mCallId).getState());
+
+        // Ensure no issues with call disconnect.
+        mInCallServiceFixtureX.mInCallAdapter.disconnectCall(incoming.mCallId);
+        mInCallServiceFixtureX.mInCallAdapter.disconnectCall(outgoing.mCallId);
+        assertEquals(Call.STATE_DISCONNECTING,
+                mInCallServiceFixtureX.getCall(incoming.mCallId).getState());
+        assertEquals(Call.STATE_DISCONNECTING,
+                mInCallServiceFixtureX.getCall(outgoing.mCallId).getState());
+        InCallServiceFixture.setIgnoreOverrideAdapterFlag(false);
+    }
+
+    @LargeTest
+    @Test
     public void testAudioManagerOperations() throws Exception {
         AudioManager audioManager = (AudioManager) mComponentContextFixture.getTestDouble()
                 .getApplicationContext().getSystemService(Context.AUDIO_SERVICE);
@@ -648,15 +688,15 @@
 
         mInCallServiceFixtureX.mInCallAdapter.setAudioRoute(CallAudioState.ROUTE_SPEAKER, null);
         waitForHandlerAction(mTelecomSystem.getCallsManager().getCallAudioManager()
-                .getCallAudioRouteStateMachine().getHandler(), TEST_TIMEOUT);
+                .getCallAudioRouteAdapter().getAdapterHandler(), TEST_TIMEOUT);
         ArgumentCaptor<AudioDeviceInfo> infoArgumentCaptor =
                 ArgumentCaptor.forClass(AudioDeviceInfo.class);
-        verify(audioManager, timeout(TEST_TIMEOUT)).setCommunicationDevice(
-                infoArgumentCaptor.capture());
+        verify(audioManager, timeout(TEST_TIMEOUT).atLeast(1))
+                .setCommunicationDevice(infoArgumentCaptor.capture());
         assertEquals(AudioDeviceInfo.TYPE_BUILTIN_SPEAKER, infoArgumentCaptor.getValue().getType());
         mInCallServiceFixtureX.mInCallAdapter.setAudioRoute(CallAudioState.ROUTE_EARPIECE, null);
         waitForHandlerAction(mTelecomSystem.getCallsManager().getCallAudioManager()
-                .getCallAudioRouteStateMachine().getHandler(), TEST_TIMEOUT);
+                .getCallAudioRouteAdapter().getAdapterHandler(), TEST_TIMEOUT);
         // setSpeakerPhoneOn(false) gets called once during the call initiation phase
         verify(audioManager, timeout(TEST_TIMEOUT).atLeast(1))
                 .clearCommunicationDevice();
@@ -667,7 +707,7 @@
         waitForHandlerAction(mTelecomSystem.getCallsManager().getCallAudioManager()
                 .getCallAudioModeStateMachine().getHandler(), TEST_TIMEOUT);
         waitForHandlerAction(mTelecomSystem.getCallsManager().getCallAudioManager()
-                .getCallAudioRouteStateMachine().getHandler(), TEST_TIMEOUT);
+                .getCallAudioRouteAdapter().getAdapterHandler(), TEST_TIMEOUT);
         verify(audioManager, timeout(TEST_TIMEOUT))
                 .abandonAudioFocusForCall();
         verify(audioManager, timeout(TEST_TIMEOUT).atLeastOnce())
@@ -1195,7 +1235,7 @@
                 .getState());
         mInCallServiceFixtureX.mInCallAdapter.mute(true);
         waitForHandlerAction(mTelecomSystem.getCallsManager().getCallAudioManager()
-                .getCallAudioRouteStateMachine().getHandler(), TEST_TIMEOUT);
+                .getCallAudioRouteAdapter().getAdapterHandler(), TEST_TIMEOUT);
         assertTrue(mTelecomSystem.getCallsManager().getAudioState().isMuted());
 
         // Make an emergency call.
@@ -1204,14 +1244,14 @@
         assertEquals(Call.STATE_DIALING, mInCallServiceFixtureX.getCall(emergencyCall.mCallId)
                 .getState());
         waitForHandlerAction(mTelecomSystem.getCallsManager().getCallAudioManager()
-                .getCallAudioRouteStateMachine().getHandler(), TEST_TIMEOUT);
+                .getCallAudioRouteAdapter().getAdapterHandler(), TEST_TIMEOUT);
         // Should be unmute automatically.
         assertFalse(mTelecomSystem.getCallsManager().getAudioState().isMuted());
 
         // Toggle mute during an emergency call.
         mTelecomSystem.getCallsManager().getCallAudioManager().toggleMute();
         waitForHandlerAction(mTelecomSystem.getCallsManager().getCallAudioManager()
-                .getCallAudioRouteStateMachine().getHandler(), TEST_TIMEOUT);
+                .getCallAudioRouteAdapter().getAdapterHandler(), TEST_TIMEOUT);
         // Should keep unmute.
         assertFalse(mTelecomSystem.getCallsManager().getAudioState().isMuted());
 
@@ -1339,7 +1379,6 @@
     public void testValidateStatusHintsImage_addExistingConnection() throws Exception {
         IdPair outgoing = startAndMakeActiveOutgoingCall("650-555-1214",
                 mPhoneAccountA0.getAccountHandle(), mConnectionServiceFixtureA);
-        Connection existingConnection = mConnectionServiceFixtureA.mLatestConnection;
 
         // Modify existing connection with StatusHints image exploit
         Icon icon = Icon.createWithContentUri("content://10@media/external/images/media/");
diff --git a/tests/src/com/android/server/telecom/tests/BlockCheckerFilterTest.java b/tests/src/com/android/server/telecom/tests/BlockCheckerFilterTest.java
index 7df4f29..2584b02 100644
--- a/tests/src/com/android/server/telecom/tests/BlockCheckerFilterTest.java
+++ b/tests/src/com/android/server/telecom/tests/BlockCheckerFilterTest.java
@@ -32,11 +32,10 @@
 import android.os.Bundle;
 import android.os.PersistableBundle;
 import android.provider.CallLog;
-import android.telecom.CallerInfo;
 import android.telecom.TelecomManager;
 import android.telephony.CarrierConfigManager;
-import android.test.suitebuilder.annotation.SmallTest;
-import android.util.Pair;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.Call;
 import com.android.server.telecom.CallerInfoLookupHelper;
@@ -51,7 +50,6 @@
 import org.mockito.ArgumentCaptor;
 import org.mockito.Mock;
 
-import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.CompletionStage;
 import java.util.concurrent.TimeUnit;
 
@@ -72,6 +70,7 @@
     private static final CallFilteringResult BLOCK_RESULT = new CallFilteringResult.Builder()
             .setShouldAllowCall(false)
             .setShouldReject(true)
+            .setShouldSilence(true)
             .setShouldAddToCallLog(true)
             .setShouldShowNotification(false)
             .setCallBlockReason(CallLog.Calls.BLOCK_REASON_BLOCKED_NUMBER)
diff --git a/tests/src/com/android/server/telecom/tests/BlockedNumbersUtilTests.java b/tests/src/com/android/server/telecom/tests/BlockedNumbersUtilTests.java
index 56cb735..696867e 100644
--- a/tests/src/com/android/server/telecom/tests/BlockedNumbersUtilTests.java
+++ b/tests/src/com/android/server/telecom/tests/BlockedNumbersUtilTests.java
@@ -24,7 +24,8 @@
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.os.UserHandle;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.settings.BlockedNumbersUtil;
 
diff --git a/tests/src/com/android/server/telecom/tests/BluetoothDeviceManagerTest.java b/tests/src/com/android/server/telecom/tests/BluetoothDeviceManagerTest.java
index c37d136..648a831 100644
--- a/tests/src/com/android/server/telecom/tests/BluetoothDeviceManagerTest.java
+++ b/tests/src/com/android/server/telecom/tests/BluetoothDeviceManagerTest.java
@@ -18,19 +18,36 @@
 
 import static android.media.AudioDeviceInfo.TYPE_BUILTIN_SPEAKER;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.ArgumentMatchers.isNull;
+import static org.mockito.ArgumentMatchers.nullable;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.atLeastOnce;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothDevice;
 import android.bluetooth.BluetoothHeadset;
 import android.bluetooth.BluetoothHearingAid;
 import android.bluetooth.BluetoothLeAudio;
 import android.bluetooth.BluetoothProfile;
-import android.content.BroadcastReceiver;
 import android.content.Intent;
 import android.media.AudioDeviceInfo;
 import android.media.AudioManager;
+import android.os.Bundle;
 import android.os.Parcel;
-import android.test.suitebuilder.annotation.SmallTest;
 
+import androidx.test.filters.SmallTest;
+
+import com.android.server.telecom.CallAudioCommunicationDeviceTracker;
 import com.android.server.telecom.bluetooth.BluetoothDeviceManager;
 import com.android.server.telecom.bluetooth.BluetoothRouteManager;
 import com.android.server.telecom.bluetooth.BluetoothStateReceiver;
@@ -43,22 +60,8 @@
 import org.mockito.ArgumentCaptor;
 import org.mockito.Mock;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertTrue;
-import static org.mockito.ArgumentMatchers.isNull;
-import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
-import java.util.Arrays;
 import java.util.ArrayList;
+import java.util.Arrays;
 import java.util.List;
 
 @RunWith(JUnit4.class)
@@ -76,6 +79,7 @@
     BluetoothDeviceManager mBluetoothDeviceManager;
     BluetoothProfile.ServiceListener serviceListenerUnderTest;
     BluetoothStateReceiver receiverUnderTest;
+    CallAudioCommunicationDeviceTracker mCommunicationDeviceTracker;
     ArgumentCaptor<BluetoothLeAudio.Callback> leAudioCallbacksTest;
 
     private BluetoothDevice device1;
@@ -103,8 +107,11 @@
         when(mBluetoothHearingAid.getHiSyncId(device4)).thenReturn(100L);
 
         mContext = mComponentContextFixture.getTestDouble().getApplicationContext();
-        mBluetoothDeviceManager = new BluetoothDeviceManager(mContext, mAdapter);
+        mCommunicationDeviceTracker = new CallAudioCommunicationDeviceTracker(mContext);
+        mBluetoothDeviceManager = new BluetoothDeviceManager(mContext, mAdapter,
+                mCommunicationDeviceTracker, mFeatureFlags);
         mBluetoothDeviceManager.setBluetoothRouteManager(mRouteManager);
+        mCommunicationDeviceTracker.setBluetoothRouteManager(mRouteManager);
 
         mockAudioManager = mContext.getSystemService(AudioManager.class);
 
@@ -114,7 +121,8 @@
                 serviceCaptor.capture(), eq(BluetoothProfile.HEADSET));
         serviceListenerUnderTest = serviceCaptor.getValue();
 
-        receiverUnderTest = new BluetoothStateReceiver(mBluetoothDeviceManager, mRouteManager);
+        receiverUnderTest = new BluetoothStateReceiver(mBluetoothDeviceManager,
+                mRouteManager, mCommunicationDeviceTracker, mFeatureFlags);
 
         mBluetoothDeviceManager.setHeadsetServiceForTesting(mBluetoothHeadset);
         mBluetoothDeviceManager.setHearingAidServiceForTesting(mBluetoothHearingAid);
@@ -125,6 +133,7 @@
         verify(mBluetoothLeAudio).registerCallback(any(), leAudioCallbacksTest.capture());
 
         when(mSpeakerInfo.getType()).thenReturn(TYPE_BUILTIN_SPEAKER);
+        when(mFeatureFlags.callAudioCommunicationDeviceRefactor()).thenReturn(false);
     }
 
     @Override
@@ -178,6 +187,7 @@
                 buildConnectionActionIntent(BluetoothHeadset.STATE_CONNECTED, device5,
                         BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO));
         leAudioCallbacksTest.getValue().onGroupNodeAdded(device5, 1);
+        when(mBluetoothLeAudio.getGroupId(device5)).thenReturn(1);
         when(mBluetoothLeAudio.getConnectedGroupLeadDevice(1)).thenReturn(device5);
 
         receiverUnderTest.onReceive(mContext,
@@ -188,6 +198,7 @@
                         BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO));
         leAudioCallbacksTest.getValue().onGroupNodeAdded(device6, 2);
         when(mBluetoothLeAudio.getConnectedGroupLeadDevice(2)).thenReturn(device6);
+        when(mBluetoothLeAudio.getGroupId(device6)).thenReturn(1);
         receiverUnderTest.onReceive(mContext,
                 buildConnectionActionIntent(BluetoothHeadset.STATE_CONNECTED, device3,
                         BluetoothDeviceManager.DEVICE_TYPE_HEADSET));
@@ -263,17 +274,19 @@
     @Test
     public void testLeAudioDedup() {
         receiverUnderTest.onReceive(mContext,
-                buildConnectionActionIntent(BluetoothHeadset.STATE_CONNECTED, device1,
+                buildConnectionActionIntent(BluetoothProfile.STATE_CONNECTED, device1,
                         BluetoothDeviceManager.DEVICE_TYPE_HEADSET));
         receiverUnderTest.onReceive(mContext,
-                buildConnectionActionIntent(BluetoothHeadset.STATE_CONNECTED, device5,
+                buildConnectionActionIntent(BluetoothProfile.STATE_CONNECTED, device5,
                         BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO));
         leAudioCallbacksTest.getValue().onGroupNodeAdded(device5, 1);
         receiverUnderTest.onReceive(mContext,
-                buildConnectionActionIntent(BluetoothHeadset.STATE_CONNECTED, device6,
+                buildConnectionActionIntent(BluetoothProfile.STATE_CONNECTED, device6,
                         BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO));
         leAudioCallbacksTest.getValue().onGroupNodeAdded(device6, 1);
         when(mBluetoothLeAudio.getConnectedGroupLeadDevice(1)).thenReturn(device5);
+        when(mBluetoothLeAudio.getGroupId(device5)).thenReturn(1);
+        when(mBluetoothLeAudio.getGroupId(device6)).thenReturn(1);
         assertEquals(2, mBluetoothDeviceManager.getNumConnectedDevices());
         assertEquals(2, mBluetoothDeviceManager.getUniqueConnectedDevices().size());
     }
@@ -408,8 +421,8 @@
         when(mAdapter.setActiveDevice(nullable(BluetoothDevice.class),
                 eq(BluetoothAdapter.ACTIVE_DEVICE_ALL))).thenReturn(true);
 
-        AudioDeviceInfo mockAudioDeviceInfo = mock(AudioDeviceInfo.class);
-        when(mockAudioDeviceInfo.getType()).thenReturn(AudioDeviceInfo.TYPE_HEARING_AID);
+        AudioDeviceInfo mockAudioDeviceInfo = createMockAudioDeviceInfo(device5.getAddress(),
+                AudioDeviceInfo.TYPE_HEARING_AID);
         List<AudioDeviceInfo> devices = new ArrayList<>();
         devices.add(mockAudioDeviceInfo);
 
@@ -429,7 +442,7 @@
 
         when(mockAudioManager.getCommunicationDevice()).thenReturn(mockAudioDeviceInfo);
         mBluetoothDeviceManager.disconnectAudio();
-        verify(mockAudioManager).clearCommunicationDevice();
+        verify(mockAudioManager, atLeastOnce()).clearCommunicationDevice();
     }
 
     @SmallTest
@@ -443,8 +456,8 @@
         when(mAdapter.setActiveDevice(nullable(BluetoothDevice.class),
                 eq(BluetoothAdapter.ACTIVE_DEVICE_ALL))).thenReturn(true);
 
-        AudioDeviceInfo mockAudioDeviceInfo = mock(AudioDeviceInfo.class);
-        when(mockAudioDeviceInfo.getType()).thenReturn(AudioDeviceInfo.TYPE_BLE_HEADSET);
+        AudioDeviceInfo mockAudioDeviceInfo = createMockAudioDeviceInfo(device5.getAddress(),
+                AudioDeviceInfo.TYPE_BLE_HEADSET);
         List<AudioDeviceInfo> devices = new ArrayList<>();
         devices.add(mockAudioDeviceInfo);
 
@@ -458,12 +471,14 @@
         verify(mBluetoothHeadset, never()).connectAudio();
         verify(mAdapter, never()).setActiveDevice(nullable(BluetoothDevice.class),
                 eq(BluetoothAdapter.ACTIVE_DEVICE_PHONE_CALL));
+        verify(mAdapter, never()).setActiveDevice(nullable(BluetoothDevice.class),
+                eq(BluetoothAdapter.ACTIVE_DEVICE_AUDIO));
 
         receiverUnderTest.onReceive(mContext, buildActiveDeviceChangeActionIntent(device5,
                 BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO));
 
         mBluetoothDeviceManager.disconnectAudio();
-        verify(mockAudioManager).clearCommunicationDevice();
+        verify(mockAudioManager, atLeastOnce()).clearCommunicationDevice();
     }
 
     @SmallTest
@@ -485,6 +500,8 @@
         verify(mBluetoothHeadset, never()).connectAudio();
         verify(mAdapter, never()).setActiveDevice(nullable(BluetoothDevice.class),
                 eq(BluetoothAdapter.ACTIVE_DEVICE_PHONE_CALL));
+        verify(mAdapter, never()).setActiveDevice(nullable(BluetoothDevice.class),
+                eq(BluetoothAdapter.ACTIVE_DEVICE_PHONE_CALL));
 
         when(mAdapter.getActiveDevices(eq(BluetoothProfile.LE_AUDIO)))
                 .thenReturn(Arrays.asList(device5, device6));
@@ -499,23 +516,219 @@
 
     @SmallTest
     @Test
-    public void testClearHearingAidCommunicationDevice() {
-        AudioDeviceInfo mockAudioDeviceInfo = mock(AudioDeviceInfo.class);
-        when(mockAudioDeviceInfo.getAddress()).thenReturn(DEVICE_ADDRESS_1);
-        when(mockAudioDeviceInfo.getType()).thenReturn(AudioDeviceInfo.TYPE_HEARING_AID);
+    public void testConnectMultipleLeAudioDevices() {
+        when(mFeatureFlags.callAudioCommunicationDeviceRefactor()).thenReturn(true);
+        receiverUnderTest.setIsInCall(true);
+        receiverUnderTest.onReceive(mContext,
+                buildConnectionActionIntent(BluetoothHeadset.STATE_CONNECTED, device1,
+                        BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO));
+        leAudioCallbacksTest.getValue().onGroupNodeAdded(device1, 1);
+        receiverUnderTest.onReceive(mContext,
+                buildConnectionActionIntent(BluetoothHeadset.STATE_CONNECTED, device2,
+                        BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO));
+        leAudioCallbacksTest.getValue().onGroupNodeAdded(device2, 1);
+        when(mAdapter.setActiveDevice(nullable(BluetoothDevice.class),
+                eq(BluetoothAdapter.ACTIVE_DEVICE_ALL))).thenReturn(true);
+
         List<AudioDeviceInfo> devices = new ArrayList<>();
-        devices.add(mockAudioDeviceInfo);
+        AudioDeviceInfo leAudioDevice1 = createMockAudioDeviceInfo(device1.getAddress(),
+                AudioDeviceInfo.TYPE_BLE_HEADSET);
+        AudioDeviceInfo leAudioDevice2 = createMockAudioDeviceInfo(device2.getAddress(),
+                AudioDeviceInfo.TYPE_BLE_HEADSET);
+        devices.add(leAudioDevice1);
+        devices.add(leAudioDevice2);
 
         when(mockAudioManager.getAvailableCommunicationDevices())
                 .thenReturn(devices);
-        when(mockAudioManager.setCommunicationDevice(eq(mockAudioDeviceInfo)))
+        when(mockAudioManager.setCommunicationDevice(any(AudioDeviceInfo.class)))
                 .thenReturn(true);
 
-        mBluetoothDeviceManager.setHearingAidCommunicationDevice();
-        when(mockAudioManager.getCommunicationDevice()).thenReturn(mSpeakerInfo);
-        mBluetoothDeviceManager.clearHearingAidCommunicationDevice();
+        // Connect LE audio device
+        mBluetoothDeviceManager.connectAudio(device1.getAddress(), false);
+        verify(mAdapter).setActiveDevice(device1, BluetoothAdapter.ACTIVE_DEVICE_ALL);
+        verify(mBluetoothHeadset, never()).connectAudio();
+        verify(mAdapter, never()).setActiveDevice(nullable(BluetoothDevice.class),
+                eq(BluetoothAdapter.ACTIVE_DEVICE_PHONE_CALL));
+        // Verify that we set the communication device for device 1
+        verify(mockAudioManager).setCommunicationDevice(leAudioDevice1);
+
+        // Change active device to other LE audio device
+        receiverUnderTest.onReceive(mContext, buildActiveDeviceChangeActionIntent(device2,
+                BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO));
+
+        // Verify call to clearLeAudioCommunicationDevice
         verify(mRouteManager).onAudioLost(eq(DEVICE_ADDRESS_1));
-        assertFalse(mBluetoothDeviceManager.isHearingAidSetAsCommunicationDevice());
+        // Verify that we set the communication device for device2
+        verify(mockAudioManager).setCommunicationDevice(leAudioDevice2);
+    }
+
+    @SmallTest
+    @Test
+    public void testClearCommunicationDeviceOnActiveDeviceChange() {
+        when(mFeatureFlags.callAudioCommunicationDeviceRefactor()).thenReturn(true);
+        receiverUnderTest.setIsInCall(true);
+
+        List<AudioDeviceInfo> devices = new ArrayList<>();
+        AudioDeviceInfo leAudioDevice1 = createMockAudioDeviceInfo(device1.getAddress(),
+                AudioDeviceInfo.TYPE_BLE_HEADSET);
+        devices.add(leAudioDevice1);
+
+        when(mockAudioManager.getAvailableCommunicationDevices())
+                .thenReturn(devices);
+        when(mockAudioManager.setCommunicationDevice(any(AudioDeviceInfo.class)))
+                .thenReturn(true);
+
+        // Pretend that the speaker device is currently the requested device set for communication.
+        // This test ensures that the set/clear communication logic for audio switching in/out of BT
+        // is properly working when the receiver processes an active device change intent.
+        mCommunicationDeviceTracker.setTestCommunicationDevice(TYPE_BUILTIN_SPEAKER);
+
+        // Notify that LE audio device has been turned on
+        receiverUnderTest.onReceive(mContext, buildActiveDeviceChangeActionIntent(device1,
+                BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO));
+        // Verify call to clear speaker communication device
+        verify(mockAudioManager).clearCommunicationDevice();
+        // Verify that LE audio communication device was set after clearing the speaker device
+        verify(mockAudioManager).setCommunicationDevice(leAudioDevice1);
+    }
+
+    @SmallTest
+    @Test
+    public void testConnectDualModeEarbud() {
+        when(mFeatureFlags.callAudioCommunicationDeviceRefactor()).thenReturn(true);
+        receiverUnderTest.setIsInCall(true);
+
+        // LE Audio earbuds connected
+        receiverUnderTest.onReceive(mContext,
+                buildConnectionActionIntent(BluetoothHeadset.STATE_CONNECTED, device5,
+                        BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO));
+        leAudioCallbacksTest.getValue().onGroupNodeAdded(device5, 1);
+        receiverUnderTest.onReceive(mContext,
+                buildConnectionActionIntent(BluetoothLeAudio.STATE_CONNECTED, device6,
+                        BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO));
+        leAudioCallbacksTest.getValue().onGroupNodeAdded(device6, 1);
+        // HFP device connected
+        receiverUnderTest.onReceive(mContext,
+                buildConnectionActionIntent(BluetoothHeadset.STATE_CONNECTED, device5,
+                        BluetoothDeviceManager.DEVICE_TYPE_HEADSET));
+        when(mAdapter.setActiveDevice(nullable(BluetoothDevice.class),
+                eq(BluetoothAdapter.ACTIVE_DEVICE_ALL))).thenReturn(true);
+
+        AudioDeviceInfo mockAudioDevice5Info = createMockAudioDeviceInfo(device5.getAddress(),
+                AudioDeviceInfo.TYPE_BLE_HEADSET);
+        AudioDeviceInfo mockAudioDevice6Info = createMockAudioDeviceInfo(device6.getAddress(),
+                AudioDeviceInfo.TYPE_BLE_HEADSET);
+        when(mockAudioDevice5Info.getType()).thenReturn(AudioDeviceInfo.TYPE_BLE_HEADSET);
+        when(mockAudioDevice6Info.getType()).thenReturn(AudioDeviceInfo.TYPE_BLE_HEADSET);
+        List<AudioDeviceInfo> devices = new ArrayList<>();
+        devices.add(mockAudioDevice5Info);
+        devices.add(mockAudioDevice6Info);
+
+        when(mockAudioManager.getAvailableCommunicationDevices())
+                .thenReturn(devices);
+        when(mockAudioManager.setCommunicationDevice(mockAudioDevice5Info))
+                .thenReturn(true);
+
+        Bundle hfpPreferred = new Bundle();
+        hfpPreferred.putInt(BluetoothAdapter.AUDIO_MODE_DUPLEX, BluetoothProfile.HEADSET);
+        Bundle leAudioPreferred = new Bundle();
+        leAudioPreferred.putInt(BluetoothAdapter.AUDIO_MODE_DUPLEX, BluetoothProfile.LE_AUDIO);
+
+        // TEST 1: LE Audio preferred for DUPLEX
+        when(mAdapter.getPreferredAudioProfiles(device5)).thenReturn(leAudioPreferred);
+        when(mAdapter.getPreferredAudioProfiles(device6)).thenReturn(leAudioPreferred);
+        mBluetoothDeviceManager.connectAudio(device5.getAddress(), false);
+        verify(mAdapter, times(1)).setActiveDevice(device5, BluetoothAdapter.ACTIVE_DEVICE_ALL);
+        verify(mBluetoothHeadset, never()).connectAudio();
+        verify(mAdapter, never()).setActiveDevice(nullable(BluetoothDevice.class),
+                eq(BluetoothAdapter.ACTIVE_DEVICE_PHONE_CALL));
+        verify(mockAudioManager).setCommunicationDevice(mockAudioDevice5Info);
+
+        when(mAdapter.getActiveDevices(eq(BluetoothProfile.LE_AUDIO)))
+                .thenReturn(Arrays.asList(device5, device6));
+
+        // Check disconnect during a call
+        devices.remove(mockAudioDevice5Info);
+        receiverUnderTest.onReceive(mContext,
+                buildConnectionActionIntent(BluetoothHeadset.STATE_DISCONNECTED, device5,
+                        BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO));
+        leAudioCallbacksTest.getValue().onGroupNodeRemoved(device5, 1);
+
+        mBluetoothDeviceManager.connectAudio(device6.getAddress(), false);
+        verify(mAdapter).setActiveDevice(device6, BluetoothAdapter.ACTIVE_DEVICE_ALL);
+        verify(mBluetoothHeadset, never()).connectAudio();
+        verify(mAdapter, never()).setActiveDevice(nullable(BluetoothDevice.class),
+                eq(BluetoothAdapter.ACTIVE_DEVICE_PHONE_CALL));
+        verify(mockAudioManager, times(1)).clearCommunicationDevice();
+
+        // Reconnect other LE Audio earbud
+        devices.add(mockAudioDevice5Info);
+        receiverUnderTest.onReceive(mContext,
+                buildConnectionActionIntent(BluetoothHeadset.STATE_CONNECTED, device5,
+                        BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO));
+        leAudioCallbacksTest.getValue().onGroupNodeAdded(device5, 1);
+
+        // Disconnects audio
+        mBluetoothDeviceManager.disconnectAudio();
+        verify(mockAudioManager, times(2)).clearCommunicationDevice();
+        verify(mBluetoothHeadset, times(1)).disconnectAudio();
+
+        // TEST 2: HFP preferred for DUPLEX
+        when(mAdapter.getPreferredAudioProfiles(device5)).thenReturn(hfpPreferred);
+        when(mAdapter.getPreferredAudioProfiles(device6)).thenReturn(hfpPreferred);
+        when(mAdapter.setActiveDevice(nullable(BluetoothDevice.class),
+                eq(BluetoothAdapter.ACTIVE_DEVICE_PHONE_CALL))).thenReturn(true);
+        mBluetoothDeviceManager.connectAudio(device5.getAddress(), false);
+        verify(mAdapter).setActiveDevice(device5, BluetoothAdapter.ACTIVE_DEVICE_PHONE_CALL);
+        verify(mAdapter, times(1)).setActiveDevice(device5,
+                BluetoothAdapter.ACTIVE_DEVICE_ALL);
+        verify(mBluetoothHeadset).connectAudio();
+        mBluetoothDeviceManager.disconnectAudio();
+        verify(mBluetoothHeadset, times(2)).disconnectAudio();
+    }
+
+    @SmallTest
+    @Test
+    public void testClearHearingAidCommunicationDeviceLegacy() {
+        assertClearHearingAidOrLeCommunicationDevice(false, AudioDeviceInfo.TYPE_HEARING_AID);
+    }
+
+    @SmallTest
+    @Test
+    public void testClearHearingAidCommunicationDeviceWithFlag() {
+        when(mFeatureFlags.callAudioCommunicationDeviceRefactor()).thenReturn(true);
+        assertClearHearingAidOrLeCommunicationDevice(true, AudioDeviceInfo.TYPE_HEARING_AID);
+    }
+
+    @SmallTest
+    @Test
+    public void testClearLeAudioCommunicationDeviceLegacy() {
+        assertClearHearingAidOrLeCommunicationDevice(false, AudioDeviceInfo.TYPE_BLE_HEADSET);
+    }
+
+    @SmallTest
+    @Test
+    public void testClearLeAudioCommunicationDeviceWithFlag() {
+        when(mFeatureFlags.callAudioCommunicationDeviceRefactor()).thenReturn(true);
+        assertClearHearingAidOrLeCommunicationDevice(true, AudioDeviceInfo.TYPE_BLE_HEADSET);
+    }
+
+    @SmallTest
+    @Test
+    public void testConnectedDevicesDoNotContainDuplicateDevices() {
+        BluetoothDevice hfpDevice = mock(BluetoothDevice.class);
+        when(hfpDevice.getAddress()).thenReturn("00:00:00:00:00:00");
+        when(hfpDevice.getType()).thenReturn(BluetoothDeviceManager.DEVICE_TYPE_HEADSET);
+        BluetoothDevice leDevice = mock(BluetoothDevice.class);
+        when(hfpDevice.getAddress()).thenReturn("00:00:00:00:00:00");
+        when(hfpDevice.getType()).thenReturn(BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO);
+
+        mBluetoothDeviceManager.onDeviceConnected(hfpDevice,
+                BluetoothDeviceManager.DEVICE_TYPE_HEADSET);
+        mBluetoothDeviceManager.onDeviceConnected(leDevice,
+                BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO);
+
+        assertEquals(1, mBluetoothDeviceManager.getNumConnectedDevices());
     }
 
     @SmallTest
@@ -525,22 +738,67 @@
         when(mBluetoothLeAudio.isInbandRingtoneEnabled(1)).thenReturn(true);
         when(mBluetoothLeAudio.getGroupId(eq(device3))).thenReturn(1);
         receiverUnderTest.onReceive(mContext,
-                buildConnectionActionIntent(BluetoothHeadset.STATE_CONNECTED, device1,
-                        BluetoothDeviceManager.DEVICE_TYPE_HEADSET));
-        receiverUnderTest.onReceive(mContext,
-                buildConnectionActionIntent(BluetoothHeadset.STATE_CONNECTED, device2,
-                        BluetoothDeviceManager.DEVICE_TYPE_HEADSET));
-        receiverUnderTest.onReceive(mContext,
                 buildConnectionActionIntent(BluetoothHeadset.STATE_CONNECTED, device3,
                         BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO));
         leAudioCallbacksTest.getValue().onGroupNodeAdded(device3, 1);
-        when(mBluetoothLeAudio.getConnectedGroupLeadDevice(1)).thenReturn(device3);
         when(mRouteManager.getBluetoothAudioConnectedDevice()).thenReturn(device3);
         when(mRouteManager.isCachedLeAudioDevice(eq(device3))).thenReturn(true);
-        assertEquals(3, mBluetoothDeviceManager.getNumConnectedDevices());
+        when(mBluetoothLeAudio.getConnectedGroupLeadDevice(1)).thenReturn(device3);
+        when(mRouteManager.getMostRecentlyReportedActiveDevice()).thenReturn(device3);
+        assertEquals(1, mBluetoothDeviceManager.getNumConnectedDevices());
         assertTrue(mBluetoothDeviceManager.isInbandRingingEnabled());
     }
 
+    private void assertClearHearingAidOrLeCommunicationDevice(
+            boolean flagEnabled, int device_type
+    ) {
+        AudioDeviceInfo mockAudioDeviceInfo = mock(AudioDeviceInfo.class);
+        when(mockAudioDeviceInfo.getAddress()).thenReturn(DEVICE_ADDRESS_1);
+        when(mockAudioDeviceInfo.getType()).thenReturn(device_type);
+        List<AudioDeviceInfo> devices = new ArrayList<>();
+        devices.add(mockAudioDeviceInfo);
+
+        when(mockAudioManager.getAvailableCommunicationDevices())
+                .thenReturn(devices);
+        when(mockAudioManager.setCommunicationDevice(eq(mockAudioDeviceInfo)))
+                .thenReturn(true);
+
+        if (flagEnabled) {
+            BluetoothDevice btDevice = device_type == AudioDeviceInfo.TYPE_BLE_HEADSET
+                    ? device1 : null;
+            mCommunicationDeviceTracker.setCommunicationDevice(device_type, btDevice);
+        } else {
+            if (device_type == AudioDeviceInfo.TYPE_BLE_HEADSET) {
+                mBluetoothDeviceManager.setLeAudioCommunicationDevice();
+            } else {
+                mBluetoothDeviceManager.setHearingAidCommunicationDevice();
+            }
+        }
+        when(mockAudioManager.getCommunicationDevice()).thenReturn(mSpeakerInfo);
+        if (flagEnabled) {
+            mCommunicationDeviceTracker.clearCommunicationDevice(device_type);
+            assertFalse(mCommunicationDeviceTracker.isAudioDeviceSetForType(device_type));
+        } else {
+            if (device_type == AudioDeviceInfo.TYPE_BLE_HEADSET) {
+                mBluetoothDeviceManager.clearLeAudioCommunicationDevice();
+                assertFalse(mBluetoothDeviceManager.isLeAudioCommunicationDevice());
+            } else {
+                mBluetoothDeviceManager.clearHearingAidCommunicationDevice();
+                assertFalse(mBluetoothDeviceManager.isHearingAidSetAsCommunicationDevice());
+            }
+        }
+        verify(mRouteManager).onAudioLost(eq(DEVICE_ADDRESS_1));
+    }
+
+    private AudioDeviceInfo createMockAudioDeviceInfo(String address, int audioType) {
+        AudioDeviceInfo mockAudioDeviceInfo = mock(AudioDeviceInfo.class);
+        when(mockAudioDeviceInfo.getType()).thenReturn(audioType);
+        if (address != null) {
+            when(mockAudioDeviceInfo.getAddress()).thenReturn(address);
+        }
+        return mockAudioDeviceInfo;
+    }
+
     private Intent buildConnectionActionIntent(int state, BluetoothDevice device, int deviceType) {
         String intentString;
 
diff --git a/tests/src/com/android/server/telecom/tests/BluetoothRouteManagerTest.java b/tests/src/com/android/server/telecom/tests/BluetoothRouteManagerTest.java
index 1a6fb88..07dd350 100644
--- a/tests/src/com/android/server/telecom/tests/BluetoothRouteManagerTest.java
+++ b/tests/src/com/android/server/telecom/tests/BluetoothRouteManagerTest.java
@@ -16,6 +16,16 @@
 
 package com.android.server.telecom.tests;
 
+import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.anyBoolean;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.ArgumentMatchers.nullable;
+import static org.mockito.Mockito.reset;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothDevice;
 import android.bluetooth.BluetoothHeadset;
@@ -26,9 +36,11 @@
 import android.content.ContentResolver;
 import android.os.Parcel;
 import android.telecom.Log;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.internal.os.SomeArgs;
+import com.android.server.telecom.CallAudioCommunicationDeviceTracker;
 import com.android.server.telecom.TelecomSystem;
 import com.android.server.telecom.Timeouts;
 import com.android.server.telecom.bluetooth.BluetoothDeviceManager;
@@ -46,23 +58,20 @@
 import java.util.stream.Collectors;
 import java.util.stream.Stream;
 
-import static org.junit.Assert.assertEquals;
-import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.ArgumentMatchers.anyBoolean;
-import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Mockito.reset;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
 @RunWith(JUnit4.class)
 public class BluetoothRouteManagerTest extends TelecomTestCase {
     private static final int TEST_TIMEOUT = 1000;
     static final BluetoothDevice DEVICE1 = makeBluetoothDevice("00:00:00:00:00:01");
     static final BluetoothDevice DEVICE2 = makeBluetoothDevice("00:00:00:00:00:02");
     static final BluetoothDevice DEVICE3 = makeBluetoothDevice("00:00:00:00:00:03");
-    static final BluetoothDevice HEARING_AID_DEVICE = makeBluetoothDevice("00:00:00:00:00:04");
+    static final BluetoothDevice HEARING_AID_DEVICE_LEFT = makeBluetoothDevice("CA:FE:DE:CA:00:01");
+    static final BluetoothDevice HEARING_AID_DEVICE_RIGHT =
+      makeBluetoothDevice("CA:FE:DE:CA:00:02");
+    // See HearingAidService#getActiveDevices
+    // Note: It is really important that the left HA is the first one. The left HA is always
+    // in the first index (0) and the right one in the second index (1).
+    static final BluetoothDevice[] HEARING_AIDS =
+      new BluetoothDevice[]{HEARING_AID_DEVICE_LEFT, HEARING_AID_DEVICE_RIGHT};
 
     @Mock private BluetoothAdapter mBluetoothAdapter;
     @Mock private BluetoothDeviceManager mDeviceManager;
@@ -71,6 +80,7 @@
     @Mock private BluetoothLeAudio mBluetoothLeAudio;
     @Mock private Timeouts.Adapter mTimeoutsAdapter;
     @Mock private BluetoothRouteManager.BluetoothStateListener mListener;
+    @Mock private CallAudioCommunicationDeviceTracker mCommunicationDeviceTracker;
 
     @Override
     @Before
@@ -86,6 +96,59 @@
 
     @SmallTest
     @Test
+    public void testConnectLeftHearingAidWhenLeftIsActive() {
+        BluetoothRouteManager sm = setupStateMachine(
+                BluetoothRouteManager.AUDIO_OFF_STATE_NAME, HEARING_AID_DEVICE_LEFT);
+        sm.onActiveDeviceChanged(HEARING_AID_DEVICE_LEFT,
+            BluetoothDeviceManager.DEVICE_TYPE_HEARING_AID);
+        when(mDeviceManager.connectAudio(anyString(), anyBoolean())).thenReturn(true);
+        when(mDeviceManager.isHearingAidSetAsCommunicationDevice()).thenReturn(true);
+
+        setupConnectedDevices(null, HEARING_AIDS, null, null, HEARING_AIDS, null);
+        when(mBluetoothHeadset.getAudioState(nullable(BluetoothDevice.class)))
+          .thenReturn(BluetoothHeadset.STATE_AUDIO_DISCONNECTED);
+
+        executeRoutingAction(sm,
+            BluetoothRouteManager.NEW_DEVICE_CONNECTED, HEARING_AID_DEVICE_LEFT.getAddress());
+
+        executeRoutingAction(sm,
+            BluetoothRouteManager.CONNECT_BT, HEARING_AID_DEVICE_LEFT.getAddress());
+
+        assertEquals(BluetoothRouteManager.AUDIO_CONNECTED_STATE_NAME_PREFIX
+            + ":" + HEARING_AID_DEVICE_LEFT.getAddress(), sm.getCurrentState().getName());
+
+        sm.quitNow();
+    }
+
+    @SmallTest
+    @Test
+    public void testConnectRightHearingAidWhenLeftIsActive() {
+        BluetoothRouteManager sm = setupStateMachine(
+                BluetoothRouteManager.AUDIO_OFF_STATE_NAME, HEARING_AID_DEVICE_RIGHT);
+        sm.onActiveDeviceChanged(HEARING_AID_DEVICE_LEFT,
+            BluetoothDeviceManager.DEVICE_TYPE_HEARING_AID);
+        when(mDeviceManager.connectAudio(anyString(), anyBoolean())).thenReturn(true);
+        when(mDeviceManager.isHearingAidSetAsCommunicationDevice()).thenReturn(true);
+
+
+        setupConnectedDevices(null, HEARING_AIDS, null, null, HEARING_AIDS, null);
+        when(mBluetoothHeadset.getAudioState(nullable(BluetoothDevice.class)))
+          .thenReturn(BluetoothHeadset.STATE_AUDIO_DISCONNECTED);
+
+        executeRoutingAction(sm,
+            BluetoothRouteManager.NEW_DEVICE_CONNECTED, HEARING_AID_DEVICE_LEFT.getAddress());
+
+        executeRoutingAction(sm,
+            BluetoothRouteManager.CONNECT_BT, HEARING_AID_DEVICE_LEFT.getAddress());
+
+        assertEquals(BluetoothRouteManager.AUDIO_CONNECTED_STATE_NAME_PREFIX
+            + ":" + HEARING_AID_DEVICE_LEFT.getAddress(), sm.getCurrentState().getName());
+
+        sm.quitNow();
+    }
+
+    @SmallTest
+    @Test
     public void testConnectBtRetryWhileNotConnected() {
         BluetoothRouteManager sm = setupStateMachine(
                 BluetoothRouteManager.AUDIO_OFF_STATE_NAME, null);
@@ -112,15 +175,15 @@
         BluetoothRouteManager sm = setupStateMachine(
                 BluetoothRouteManager.AUDIO_CONNECTED_STATE_NAME_PREFIX, DEVICE1);
         setupConnectedDevices(new BluetoothDevice[]{DEVICE1},
-                new BluetoothDevice[]{HEARING_AID_DEVICE}, new BluetoothDevice[]{DEVICE2},
-                DEVICE1, HEARING_AID_DEVICE, DEVICE2);
+                HEARING_AIDS, new BluetoothDevice[]{DEVICE2},
+                DEVICE1,  HEARING_AIDS, DEVICE2);
         sm.onActiveDeviceChanged(DEVICE1, BluetoothDeviceManager.DEVICE_TYPE_HEADSET);
         sm.onActiveDeviceChanged(DEVICE2, BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO);
-        sm.onActiveDeviceChanged(HEARING_AID_DEVICE,
+        sm.onActiveDeviceChanged(HEARING_AID_DEVICE_LEFT,
                 BluetoothDeviceManager.DEVICE_TYPE_HEARING_AID);
         executeRoutingAction(sm, BluetoothRouteManager.BT_AUDIO_LOST, DEVICE1.getAddress());
 
-        verifyConnectionAttempt(HEARING_AID_DEVICE, 0);
+        verifyConnectionAttempt(HEARING_AID_DEVICE_LEFT, 0);
         verifyConnectionAttempt(DEVICE1, 0);
         verifyConnectionAttempt(DEVICE2, 0);
         assertEquals(BluetoothRouteManager.AUDIO_CONNECTED_STATE_NAME_PREFIX
@@ -171,11 +234,52 @@
         sm.quitNow();
     }
 
+    @SmallTest
+    @Test
+    public void testSkipInactiveBtDeviceWhenEvaluateActualState() {
+        BluetoothRouteManager sm = setupStateMachine(
+                BluetoothRouteManager.AUDIO_CONNECTED_STATE_NAME_PREFIX, HEARING_AID_DEVICE_LEFT);
+        setupConnectedDevices(null, HEARING_AIDS,
+                null, null, HEARING_AIDS, null);
+        executeRoutingAction(sm, BluetoothRouteManager.BT_AUDIO_LOST,
+                HEARING_AID_DEVICE_LEFT.getAddress());
+        assertEquals(BluetoothRouteManager.AUDIO_OFF_STATE_NAME, sm.getCurrentState().getName());
+        sm.quitNow();
+    }
+
+    @SmallTest
+    @Test
+    public void testConnectBtWithoutAddress() {
+        when(mFeatureFlags.useActualAddressToEnterConnectingState()).thenReturn(true);
+        BluetoothRouteManager sm = setupStateMachine(
+                BluetoothRouteManager.AUDIO_CONNECTED_STATE_NAME_PREFIX, DEVICE1);
+        setupConnectedDevices(new BluetoothDevice[]{DEVICE1, DEVICE2}, null, null, null, null,
+                null);
+        when(mTimeoutsAdapter.getRetryBluetoothConnectAudioBackoffMillis(
+                nullable(ContentResolver.class))).thenReturn(0L);
+        when(mBluetoothHeadset.connectAudio()).thenReturn(BluetoothStatusCodes.ERROR_UNKNOWN);
+        executeRoutingAction(sm, BluetoothRouteManager.CONNECT_BT, null);
+        // Wait 3 times: the first connection attempt is accounted for in executeRoutingAction,
+        // so wait twice for the retry attempt, again to make sure there are only three attempts,
+        // and once more for good luck.
+        waitForHandlerAction(sm.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(sm.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(sm.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(sm.getHandler(), TEST_TIMEOUT);
+        verifyConnectionAttempt(DEVICE1, 1);
+        assertEquals(BluetoothRouteManager.AUDIO_CONNECTED_STATE_NAME_PREFIX
+                        + ":" + DEVICE1.getAddress(),
+                sm.getCurrentState().getName());
+        sm.getHandler().removeMessages(BluetoothRouteManager.CONNECTION_TIMEOUT);
+        sm.quitNow();
+    }
+
     private BluetoothRouteManager setupStateMachine(String initialState,
             BluetoothDevice initialDevice) {
         resetMocks();
         BluetoothRouteManager sm = new BluetoothRouteManager(mContext,
-                new TelecomSystem.SyncRoot() { }, mDeviceManager, mTimeoutsAdapter);
+                new TelecomSystem.SyncRoot() { }, mDeviceManager,
+                mTimeoutsAdapter, mCommunicationDeviceTracker, mFeatureFlags);
         sm.setListener(mListener);
         sm.setInitialStateForTesting(initialState, initialDevice);
         waitForHandlerAction(sm.getHandler(), TEST_TIMEOUT);
@@ -185,10 +289,11 @@
 
     private void setupConnectedDevices(BluetoothDevice[] hfpDevices,
             BluetoothDevice[] hearingAidDevices, BluetoothDevice[] leAudioDevices,
-            BluetoothDevice hfpActiveDevice, BluetoothDevice hearingAidActiveDevice,
+            BluetoothDevice hfpActiveDevice, BluetoothDevice[] hearingAidActiveDevices,
             BluetoothDevice leAudioDevice) {
         if (hfpDevices == null) hfpDevices = new BluetoothDevice[]{};
         if (hearingAidDevices == null) hearingAidDevices = new BluetoothDevice[]{};
+        if (hearingAidActiveDevices == null) hearingAidActiveDevices = new BluetoothDevice[]{};
         if (leAudioDevice == null) leAudioDevices = new BluetoothDevice[]{};
 
         when(mDeviceManager.getNumConnectedDevices()).thenReturn(
@@ -207,7 +312,7 @@
         when(mBluetoothHearingAid.getConnectedDevices())
                 .thenReturn(Arrays.asList(hearingAidDevices));
         when(mBluetoothAdapter.getActiveDevices(eq(BluetoothProfile.HEARING_AID)))
-                .thenReturn(Arrays.asList(hearingAidActiveDevice, null));
+                .thenReturn(Arrays.asList(hearingAidActiveDevices));
         when(mBluetoothAdapter.getActiveDevices(eq(BluetoothProfile.LE_AUDIO)))
                 .thenReturn(Arrays.asList(leAudioDevice, null));
     }
diff --git a/tests/src/com/android/server/telecom/tests/BluetoothRouteTransitionTests.java b/tests/src/com/android/server/telecom/tests/BluetoothRouteTransitionTests.java
index 5eecccc..c546c3f 100644
--- a/tests/src/com/android/server/telecom/tests/BluetoothRouteTransitionTests.java
+++ b/tests/src/com/android/server/telecom/tests/BluetoothRouteTransitionTests.java
@@ -16,6 +16,21 @@
 
 package com.android.server.telecom.tests;
 
+import static com.android.server.telecom.tests.BluetoothRouteManagerTest.DEVICE1;
+import static com.android.server.telecom.tests.BluetoothRouteManagerTest.DEVICE2;
+import static com.android.server.telecom.tests.BluetoothRouteManagerTest.DEVICE3;
+import static com.android.server.telecom.tests.BluetoothRouteManagerTest.executeRoutingAction;
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.ArgumentMatchers.nullable;
+import static org.mockito.Mockito.clearInvocations;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothDevice;
 import android.bluetooth.BluetoothHeadset;
@@ -25,9 +40,11 @@
 import android.bluetooth.BluetoothStatusCodes;
 import android.content.ContentResolver;
 import android.telecom.Log;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.internal.os.SomeArgs;
+import com.android.server.telecom.CallAudioCommunicationDeviceTracker;
 import com.android.server.telecom.TelecomSystem;
 import com.android.server.telecom.Timeouts;
 import com.android.server.telecom.bluetooth.BluetoothDeviceManager;
@@ -45,28 +62,13 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.List;
-import java.util.stream.Stream;
 import java.util.stream.Collectors;
 
-import static com.android.server.telecom.tests.BluetoothRouteManagerTest.DEVICE1;
-import static com.android.server.telecom.tests.BluetoothRouteManagerTest.DEVICE2;
-import static com.android.server.telecom.tests.BluetoothRouteManagerTest.DEVICE3;
-import static com.android.server.telecom.tests.BluetoothRouteManagerTest.executeRoutingAction;
-import static org.junit.Assert.assertEquals;
-import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.ArgumentMatchers.eq;
-import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Mockito.clearInvocations;
-import static org.mockito.Mockito.doAnswer;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
 @RunWith(Parameterized.class)
 public class BluetoothRouteTransitionTests extends TelecomTestCase {
     private enum ListenerUpdate {
         DEVICE_LIST_CHANGED, ACTIVE_DEVICE_PRESENT, ACTIVE_DEVICE_GONE,
-        AUDIO_CONNECTED, AUDIO_DISCONNECTED, UNEXPECTED_STATE_CHANGE
+        AUDIO_CONNECTING, AUDIO_CONNECTED, AUDIO_DISCONNECTED, UNEXPECTED_STATE_CHANGE
     }
 
     private static class BluetoothRouteTestParametersBuilder {
@@ -263,6 +265,7 @@
     @Mock private BluetoothLeAudio mBluetoothLeAudio;
     @Mock private Timeouts.Adapter mTimeoutsAdapter;
     @Mock private BluetoothRouteManager.BluetoothStateListener mListener;
+    @Mock private CallAudioCommunicationDeviceTracker mCommunicationDeviceTracker;
 
     @Override
     @Before
@@ -348,6 +351,9 @@
                 case ACTIVE_DEVICE_GONE:
                     verify(mListener).onBluetoothActiveDeviceGone();
                     break;
+                case AUDIO_CONNECTING:
+                    verify(mListener).onBluetoothAudioConnecting();
+                    break;
                 case AUDIO_CONNECTED:
                     verify(mListener).onBluetoothAudioConnected();
                     break;
@@ -413,7 +419,8 @@
         when(mTimeoutsAdapter.getBluetoothPendingTimeoutMillis(
                 nullable(ContentResolver.class))).thenReturn(100000L);
         BluetoothRouteManager sm = new BluetoothRouteManager(mContext,
-                new TelecomSystem.SyncRoot() { }, mDeviceManager, mTimeoutsAdapter);
+                new TelecomSystem.SyncRoot() { }, mDeviceManager,
+                mTimeoutsAdapter, mCommunicationDeviceTracker, mFeatureFlags);
         sm.setListener(mListener);
         sm.setInitialStateForTesting(initialState, initialDevice);
         waitForHandlerAction(sm.getHandler(), TEST_TIMEOUT);
@@ -449,7 +456,7 @@
                 .setConnectedDevices(DEVICE2, DEVICE1)
                 .setActiveDevice(DEVICE1)
                 .setMessageType(BluetoothRouteManager.CONNECT_BT)
-                .setExpectedListenerUpdates(ListenerUpdate.AUDIO_CONNECTED)
+                .setExpectedListenerUpdates(ListenerUpdate.AUDIO_CONNECTING)
                 .setExpectedBluetoothInteraction(CONNECT)
                 .setExpectedConnectionDevice(DEVICE1)
                 .setExpectedFinalStateName(BluetoothRouteManager.AUDIO_CONNECTING_STATE_NAME_PREFIX
@@ -505,7 +512,7 @@
                 .setConnectedDevices(DEVICE2, DEVICE1, DEVICE3)
                 .setMessageType(BluetoothRouteManager.CONNECT_BT)
                 .setMessageDevice(DEVICE3)
-                .setExpectedListenerUpdates(ListenerUpdate.AUDIO_CONNECTED)
+                .setExpectedListenerUpdates(ListenerUpdate.AUDIO_CONNECTING)
                 .setExpectedBluetoothInteraction(CONNECT_SWITCH_DEVICE)
                 .setExpectedConnectionDevice(DEVICE3)
                 .setExpectedFinalStateName(BluetoothRouteManager.AUDIO_CONNECTING_STATE_NAME_PREFIX
@@ -519,7 +526,7 @@
                 .setConnectedDevices(DEVICE2, DEVICE1, DEVICE3)
                 .setMessageType(BluetoothRouteManager.CONNECT_BT)
                 .setMessageDevice(DEVICE3)
-                .setExpectedListenerUpdates(ListenerUpdate.AUDIO_CONNECTED)
+                .setExpectedListenerUpdates(ListenerUpdate.AUDIO_CONNECTING)
                 .setExpectedBluetoothInteraction(CONNECT_SWITCH_DEVICE)
                 .setExpectedConnectionDevice(DEVICE3)
                 .setExpectedFinalStateName(BluetoothRouteManager.AUDIO_CONNECTING_STATE_NAME_PREFIX
diff --git a/tests/src/com/android/server/telecom/tests/CallAnomalyWatchdogTest.java b/tests/src/com/android/server/telecom/tests/CallAnomalyWatchdogTest.java
index 7e197fe..86d24f9 100644
--- a/tests/src/com/android/server/telecom/tests/CallAnomalyWatchdogTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallAnomalyWatchdogTest.java
@@ -27,6 +27,7 @@
 
 import android.content.ComponentName;
 import android.net.Uri;
+import android.os.UserHandle;
 import android.telecom.DisconnectCause;
 import android.telecom.PhoneAccount;
 import android.telecom.PhoneAccountHandle;
@@ -123,6 +124,7 @@
         mCallAnomalyWatchdog = new CallAnomalyWatchdog(mTestScheduledExecutorService, mLock,
                 mTimeouts, mMockClockProxy, mMockEmergencyCallDiagnosticLogger);
         mCallAnomalyWatchdog.setAnomalyReporterAdapter(mAnomalyReporterAdapter);
+        when(mMockCallsManager.getCurrentUserHandle()).thenReturn(UserHandle.CURRENT);
     }
 
     @Override
@@ -862,6 +864,7 @@
                 false /* shouldAttachToExistingConnection*/,
                 false /* isConference */,
                 mMockClockProxy,
-                mMockToastProxy);
+                mMockToastProxy,
+                mFeatureFlags);
     }
 }
\ No newline at end of file
diff --git a/tests/src/com/android/server/telecom/tests/CallAudioManagerTest.java b/tests/src/com/android/server/telecom/tests/CallAudioManagerTest.java
index 3d06ad0..97405a3 100644
--- a/tests/src/com/android/server/telecom/tests/CallAudioManagerTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallAudioManagerTest.java
@@ -16,26 +16,45 @@
 
 package com.android.server.telecom.tests;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.ArgumentMatchers.nullable;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.atLeastOnce;
+import static org.mockito.Mockito.clearInvocations;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 import android.media.ToneGenerator;
 import android.telecom.DisconnectCause;
-import android.test.suitebuilder.annotation.MediumTest;
-import android.test.suitebuilder.annotation.SmallTest;
 import android.util.SparseArray;
 
+import androidx.test.filters.MediumTest;
+import androidx.test.filters.SmallTest;
+
 import com.android.server.telecom.Call;
+import com.android.server.telecom.CallAudioManager;
 import com.android.server.telecom.CallAudioModeStateMachine;
 import com.android.server.telecom.CallAudioModeStateMachine.MessageArgs;
+import com.android.server.telecom.CallAudioModeStateMachine.MessageArgs.Builder;
 import com.android.server.telecom.CallAudioRouteStateMachine;
 import com.android.server.telecom.CallState;
 import com.android.server.telecom.CallsManager;
-import com.android.server.telecom.CallAudioManager;
 import com.android.server.telecom.DtmfLocalTonePlayer;
 import com.android.server.telecom.InCallTonePlayer;
-import com.android.server.telecom.CallAudioModeStateMachine.MessageArgs.Builder;
 import com.android.server.telecom.RingbackPlayer;
 import com.android.server.telecom.Ringer;
 import com.android.server.telecom.TelecomSystem;
 import com.android.server.telecom.bluetooth.BluetoothStateReceiver;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import org.junit.After;
 import org.junit.Before;
@@ -50,22 +69,6 @@
 import java.util.List;
 import java.util.stream.Collectors;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertTrue;
-import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.anyInt;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Mockito.atLeastOnce;
-import static org.mockito.Mockito.doAnswer;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
 @RunWith(JUnit4.class)
 public class CallAudioManagerTest extends TelecomTestCase {
     @Mock private CallAudioRouteStateMachine mCallAudioRouteStateMachine;
@@ -78,6 +81,8 @@
     @Mock private BluetoothStateReceiver mBluetoothStateReceiver;
     @Mock private TelecomSystem.SyncRoot mLock;
 
+    @Mock private FeatureFlags mFlags;
+
     private CallAudioManager mCallAudioManager;
 
     @Override
@@ -87,12 +92,13 @@
         doAnswer((invocation) -> {
             InCallTonePlayer mockInCallTonePlayer = mock(InCallTonePlayer.class);
             doAnswer((invocation2) -> {
-                mCallAudioManager.setIsTonePlaying(true);
+                mCallAudioManager.setIsTonePlaying(invocation.getArgument(0), true);
                 return true;
             }).when(mockInCallTonePlayer).startTone();
             return mockInCallTonePlayer;
-        }).when(mPlayerFactory).createPlayer(anyInt());
+        }).when(mPlayerFactory).createPlayer(any(Call.class), anyInt());
         when(mCallsManager.getLock()).thenReturn(mLock);
+        when(mFlags.ensureAudioModeUpdatesOnForegroundCallChange()).thenReturn(true);
         mCallAudioManager = new CallAudioManager(
                 mCallAudioRouteStateMachine,
                 mCallsManager,
@@ -101,7 +107,8 @@
                 mRinger,
                 mRingbackPlayer,
                 mBluetoothStateReceiver,
-                mDtmfLocalTonePlayer);
+                mDtmfLocalTonePlayer,
+                mFlags);
     }
 
     @Override
@@ -204,7 +211,7 @@
         assertMessageArgEquality(correctArgs, captor.getValue());
 
         disconnectCall(call);
-        stopTone();
+        stopTone(call);
 
         mCallAudioManager.onCallRemoved(call);
         verifyProperCleanup();
@@ -241,7 +248,7 @@
         mCallAudioManager.onCallStateChanged(call, CallState.ANSWERED, CallState.ACTIVE);
 
         disconnectCall(call);
-        stopTone();
+        stopTone(call);
 
         mCallAudioManager.onCallRemoved(call);
         verifyProperCleanup();
@@ -277,25 +284,40 @@
         verify(mCallAudioModeStateMachine, times(2)).sendMessageWithArgs(
                 eq(CallAudioModeStateMachine.NEW_ACTIVE_OR_DIALING_CALL), captor.capture());
         assertMessageArgEquality(expectedArgs, captor.getValue());
-        verify(mCallAudioModeStateMachine, times(2)).sendMessageWithArgs(
-                anyInt(), any(CallAudioModeStateMachine.MessageArgs.class));
-
+        if (mFlags.ensureAudioModeUpdatesOnForegroundCallChange()) {
+            // Expect another invocation due to audio mode change signal.
+            verify(mCallAudioModeStateMachine, times(3)).sendMessageWithArgs(
+                    anyInt(), any(CallAudioModeStateMachine.MessageArgs.class));
+        } else {
+            verify(mCallAudioModeStateMachine, times(2)).sendMessageWithArgs(
+                    anyInt(), any(CallAudioModeStateMachine.MessageArgs.class));
+        }
 
         when(call.getState()).thenReturn(CallState.ACTIVE);
         mCallAudioManager.onCallStateChanged(call, CallState.DIALING, CallState.ACTIVE);
         verify(mCallAudioModeStateMachine, times(3)).sendMessageWithArgs(
                 eq(CallAudioModeStateMachine.NEW_ACTIVE_OR_DIALING_CALL), captor.capture());
         assertMessageArgEquality(expectedArgs, captor.getValue());
-        verify(mCallAudioModeStateMachine, times(3)).sendMessageWithArgs(
-                anyInt(), any(CallAudioModeStateMachine.MessageArgs.class));
-
+        if (mFlags.ensureAudioModeUpdatesOnForegroundCallChange()) {
+            verify(mCallAudioModeStateMachine, times(4)).sendMessageWithArgs(
+                    anyInt(), any(CallAudioModeStateMachine.MessageArgs.class));
+        } else {
+            verify(mCallAudioModeStateMachine, times(3)).sendMessageWithArgs(
+                    anyInt(), any(CallAudioModeStateMachine.MessageArgs.class));
+        }
         disconnectCall(call);
-        stopTone();
+        stopTone(call);
 
         mCallAudioManager.onCallRemoved(call);
         verifyProperCleanup();
     }
 
+    @Test
+    public void testSingleOutgoingCallWithoutAudioModeUpdateOnForegroundCallChange() {
+        when(mFlags.ensureAudioModeUpdatesOnForegroundCallChange()).thenReturn(false);
+        testSingleOutgoingCall();
+    }
+
     @MediumTest
     @Test
     public void testRingbackStartStop() {
@@ -327,8 +349,14 @@
         verify(mCallAudioModeStateMachine, times(2)).sendMessageWithArgs(
                 eq(CallAudioModeStateMachine.NEW_ACTIVE_OR_DIALING_CALL), captor.capture());
         assertMessageArgEquality(expectedArgs, captor.getValue());
-        verify(mCallAudioModeStateMachine, times(2)).sendMessageWithArgs(
-                anyInt(), any(CallAudioModeStateMachine.MessageArgs.class));
+        if (mFlags.ensureAudioModeUpdatesOnForegroundCallChange()) {
+            // Expect an extra time due to audio mode change signal
+            verify(mCallAudioModeStateMachine, times(3)).sendMessageWithArgs(
+                    anyInt(), any(CallAudioModeStateMachine.MessageArgs.class));
+        } else {
+            verify(mCallAudioModeStateMachine, times(2)).sendMessageWithArgs(
+                    anyInt(), any(CallAudioModeStateMachine.MessageArgs.class));
+        }
 
         // Ensure we started ringback.
         verify(mRingbackPlayer).startRingbackForCall(any(Call.class));
@@ -350,6 +378,12 @@
         verify(mRingbackPlayer, times(1)).startRingbackForCall(any(Call.class));
     }
 
+    @Test
+    public void testRingbackStartStopWithoutAudioModeUpdateOnForegroundCallChange() {
+        when(mFlags.ensureAudioModeUpdatesOnForegroundCallChange()).thenReturn(false);
+        testRingbackStartStop();
+    }
+
     @SmallTest
     @Test
     public void testNewCallGoesToAudioProcessing() {
@@ -495,7 +529,7 @@
 
         mCallAudioManager.onCallStateChanged(call, CallState.AUDIO_PROCESSING,
                 CallState.DISCONNECTED);
-        verify(mPlayerFactory, never()).createPlayer(anyInt());
+        verify(mPlayerFactory, never()).createPlayer(any(Call.class), anyInt());
         CallAudioModeStateMachine.MessageArgs expectedArgs2 = new Builder()
                 .setHasActiveOrDialingCalls(false)
                 .setHasRingingCalls(false)
@@ -526,7 +560,7 @@
 
         mCallAudioManager.onCallStateChanged(call, CallState.AUDIO_PROCESSING,
                 CallState.SIMULATED_RINGING);
-        verify(mPlayerFactory, never()).createPlayer(anyInt());
+        verify(mPlayerFactory, never()).createPlayer(any(Call.class), anyInt());
         CallAudioModeStateMachine.MessageArgs expectedArgs = new Builder()
                 .setHasActiveOrDialingCalls(false)
                 .setHasRingingCalls(true)
@@ -555,7 +589,7 @@
 
         mCallAudioManager.onCallStateChanged(call, CallState.AUDIO_PROCESSING,
                 CallState.ACTIVE);
-        verify(mPlayerFactory, never()).createPlayer(anyInt());
+        verify(mPlayerFactory, never()).createPlayer(any(Call.class), anyInt());
         CallAudioModeStateMachine.MessageArgs expectedArgs = new Builder()
                 .setHasActiveOrDialingCalls(true)
                 .setHasRingingCalls(false)
@@ -584,7 +618,7 @@
 
         mCallAudioManager.onCallStateChanged(call, CallState.SIMULATED_RINGING,
                 CallState.ACTIVE);
-        verify(mPlayerFactory, never()).createPlayer(anyInt());
+        verify(mPlayerFactory, never()).createPlayer(any(Call.class), anyInt());
         CallAudioModeStateMachine.MessageArgs expectedArgs = new Builder()
                 .setHasActiveOrDialingCalls(true)
                 .setHasRingingCalls(false)
@@ -643,7 +677,7 @@
 
         mCallAudioManager.onCallStateChanged(call, CallState.SIMULATED_RINGING,
                 CallState.DISCONNECTED);
-        verify(mPlayerFactory, never()).createPlayer(anyInt());
+        verify(mPlayerFactory, never()).createPlayer(any(Call.class), anyInt());
         CallAudioModeStateMachine.MessageArgs expectedArgs2 = new Builder()
                 .setHasActiveOrDialingCalls(false)
                 .setHasRingingCalls(false)
@@ -702,6 +736,77 @@
         assertFalse(captor.getValue().isStreaming);
     }
 
+    @SmallTest
+    @Test
+    public void testTriggerAudioManagerModeChange() {
+        if (!mFlags.ensureAudioModeUpdatesOnForegroundCallChange()) {
+            // Skip if the new behavior isn't in use.
+            return;
+        }
+        // Start with an incoming PSTN call
+        Call pstnCall = mock(Call.class);
+        when(pstnCall.getState()).thenReturn(CallState.RINGING);
+        when(pstnCall.getIsVoipAudioMode()).thenReturn(false);
+        ArgumentCaptor<CallAudioModeStateMachine.MessageArgs> captor = makeNewCaptor();
+
+        // Add the call
+        mCallAudioManager.onCallAdded(pstnCall);
+        verify(mCallAudioModeStateMachine).sendMessageWithArgs(
+                eq(CallAudioModeStateMachine.FOREGROUND_VOIP_MODE_CHANGE), captor.capture());
+        CallAudioModeStateMachine.MessageArgs expectedArgs =
+                new Builder()
+                        .setHasActiveOrDialingCalls(false)
+                        .setHasRingingCalls(true)
+                        .setHasHoldingCalls(false)
+                        .setIsTonePlaying(false)
+                        .setHasAudioProcessingCalls(false)
+                        .setForegroundCallIsVoip(false)
+                        .setSession(null)
+                        .setForegroundCallIsVoip(false)
+                        .build();
+        assertMessageArgEquality(expectedArgs, captor.getValue());
+        clearInvocations(mCallAudioModeStateMachine); // Avoid verifying for previous calls
+
+        // Make call active; don't expect there to be an audio mode transition.
+        when(pstnCall.getState()).thenReturn(CallState.ACTIVE);
+        mCallAudioManager.onCallStateChanged(pstnCall, CallState.RINGING, CallState.ACTIVE);
+        verify(mCallAudioModeStateMachine, never()).sendMessageWithArgs(
+                eq(CallAudioModeStateMachine.FOREGROUND_VOIP_MODE_CHANGE),
+                any(CallAudioModeStateMachine.MessageArgs.class));
+        clearInvocations(mCallAudioModeStateMachine); // Avoid verifying for previous calls
+
+        // Add a new Voip call in ringing state; this should not result in a direct audio mode
+        // change.
+        Call voipCall = mock(Call.class);
+        when(voipCall.getState()).thenReturn(CallState.RINGING);
+        when(voipCall.getIsVoipAudioMode()).thenReturn(true);
+        mCallAudioManager.onCallAdded(voipCall);
+        verify(mCallAudioModeStateMachine, never()).sendMessageWithArgs(
+                eq(CallAudioModeStateMachine.FOREGROUND_VOIP_MODE_CHANGE),
+                any(CallAudioModeStateMachine.MessageArgs.class));
+        clearInvocations(mCallAudioModeStateMachine); // Avoid verifying for previous calls
+
+        // Make voip call active and set the PSTN call to locally disconnecting; the new foreground
+        // call will be the voip call.
+        when(pstnCall.isLocallyDisconnecting()).thenReturn(true);
+        when(voipCall.getState()).thenReturn(CallState.ACTIVE);
+        mCallAudioManager.onCallStateChanged(voipCall, CallState.RINGING, CallState.ACTIVE);
+        verify(mCallAudioModeStateMachine).sendMessageWithArgs(
+                eq(CallAudioModeStateMachine.FOREGROUND_VOIP_MODE_CHANGE), captor.capture());
+        CallAudioModeStateMachine.MessageArgs expectedArgs2 =
+                new Builder()
+                        .setHasActiveOrDialingCalls(true)
+                        .setHasRingingCalls(false)
+                        .setHasHoldingCalls(false)
+                        .setIsTonePlaying(false)
+                        .setHasAudioProcessingCalls(false)
+                        .setForegroundCallIsVoip(false)
+                        .setSession(null)
+                        .setForegroundCallIsVoip(true)
+                        .build();
+        assertMessageArgEquality(expectedArgs2, captor.getValue());
+    }
+
     private Call createSimulatedRingingCall() {
         Call call = mock(Call.class);
         when(call.getState()).thenReturn(CallState.SIMULATED_RINGING);
@@ -765,7 +870,7 @@
                 "", "", "", ToneGenerator.TONE_PROP_PROMPT));
 
         mCallAudioManager.onCallStateChanged(call, CallState.ACTIVE, CallState.DISCONNECTED);
-        verify(mPlayerFactory).createPlayer(InCallTonePlayer.TONE_CALL_ENDED);
+        verify(mPlayerFactory).createPlayer(any(Call.class), eq(InCallTonePlayer.TONE_CALL_ENDED));
         correctArgs = new Builder()
                 .setHasActiveOrDialingCalls(false)
                 .setHasRingingCalls(false)
@@ -782,10 +887,10 @@
         assertMessageArgEquality(correctArgs, captor.getValue());
     }
 
-    private void stopTone() {
+    private void stopTone(Call call) {
         ArgumentCaptor<CallAudioModeStateMachine.MessageArgs> captor =
                 ArgumentCaptor.forClass(CallAudioModeStateMachine.MessageArgs.class);
-        mCallAudioManager.setIsTonePlaying(false);
+        mCallAudioManager.setIsTonePlaying(call, false);
         CallAudioModeStateMachine.MessageArgs correctArgs = new Builder()
                         .setHasActiveOrDialingCalls(false)
                         .setHasRingingCalls(false)
diff --git a/tests/src/com/android/server/telecom/tests/CallAudioModeStateMachineTest.java b/tests/src/com/android/server/telecom/tests/CallAudioModeStateMachineTest.java
index d7854a5..4513c65 100644
--- a/tests/src/com/android/server/telecom/tests/CallAudioModeStateMachineTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallAudioModeStateMachineTest.java
@@ -16,14 +16,32 @@
 
 package com.android.server.telecom.tests;
 
+import static com.android.server.telecom.CallAudioModeStateMachine.CALL_AUDIO_FOCUS_REQUEST;
+import static com.android.server.telecom.CallAudioModeStateMachine.RING_AUDIO_FOCUS_REQUEST;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.ArgumentMatchers.nullable;
+import static org.mockito.Mockito.atLeast;
+import static org.mockito.Mockito.clearInvocations;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.media.AudioFocusRequest;
 import android.media.AudioManager;
 import android.os.HandlerThread;
-import android.test.suitebuilder.annotation.SmallTest;
 
+import androidx.test.filters.SmallTest;
+
+import com.android.server.telecom.CallAudioCommunicationDeviceTracker;
 import com.android.server.telecom.CallAudioManager;
 import com.android.server.telecom.CallAudioModeStateMachine;
-import com.android.server.telecom.CallAudioRouteStateMachine;
 import com.android.server.telecom.CallAudioModeStateMachine.MessageArgs.Builder;
+import com.android.server.telecom.CallAudioRouteStateMachine;
 import com.android.server.telecom.SystemStateHelper;
 
 import org.junit.After;
@@ -31,18 +49,9 @@
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
+import org.mockito.ArgumentCaptor;
 import org.mockito.Mock;
 
-import static org.junit.Assert.assertEquals;
-import static org.mockito.ArgumentMatchers.eq;
-import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Matchers.anyInt;
-import static org.mockito.Mockito.clearInvocations;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
 @RunWith(JUnit4.class)
 public class CallAudioModeStateMachineTest extends TelecomTestCase {
     private static final int TEST_TIMEOUT = 1000;
@@ -51,6 +60,7 @@
     @Mock private AudioManager mAudioManager;
     @Mock private CallAudioManager mCallAudioManager;
     @Mock private CallAudioRouteStateMachine mCallAudioRouteStateMachine;
+    @Mock private CallAudioCommunicationDeviceTracker mCommunicationDeviceTracker;
 
     private HandlerThread mTestThread;
 
@@ -60,8 +70,9 @@
         mTestThread = new HandlerThread("CallAudioModeStateMachineTest");
         mTestThread.start();
         super.setUp();
-        when(mCallAudioManager.getCallAudioRouteStateMachine())
+        when(mCallAudioManager.getCallAudioRouteAdapter())
                 .thenReturn(mCallAudioRouteStateMachine);
+        when(mFeatureFlags.telecomResolveHiddenDependencies()).thenReturn(false);
     }
 
     @Override
@@ -76,7 +87,7 @@
     @Test
     public void testNoFocusWhenRingerSilenced() throws Throwable {
         CallAudioModeStateMachine sm = new CallAudioModeStateMachine(mSystemStateHelper,
-                mAudioManager, mTestThread.getLooper());
+                mAudioManager, mTestThread.getLooper(), mFeatureFlags, mCommunicationDeviceTracker);
         sm.setCallAudioManager(mCallAudioManager);
         sm.sendMessage(CallAudioModeStateMachine.ABANDON_FOCUS_FOR_TESTING);
         waitForHandlerAction(sm.getHandler(), TEST_TIMEOUT);
@@ -108,7 +119,7 @@
     @Test
     public void testSwitchToStreamingMode() {
         CallAudioModeStateMachine sm = new CallAudioModeStateMachine(mSystemStateHelper,
-                mAudioManager, mTestThread.getLooper());
+                mAudioManager, mTestThread.getLooper(), mFeatureFlags, mCommunicationDeviceTracker);
         sm.setCallAudioManager(mCallAudioManager);
         sm.sendMessage(CallAudioModeStateMachine.ABANDON_FOCUS_FOR_TESTING);
         waitForHandlerAction(sm.getHandler(), TEST_TIMEOUT);
@@ -138,7 +149,7 @@
     @Test
     public void testExitStreamingMode() {
         CallAudioModeStateMachine sm = new CallAudioModeStateMachine(mSystemStateHelper,
-                mAudioManager, mTestThread.getLooper());
+                mAudioManager, mTestThread.getLooper(), mFeatureFlags, mCommunicationDeviceTracker);
         sm.setCallAudioManager(mCallAudioManager);
         sm.sendMessage(CallAudioModeStateMachine.ENTER_STREAMING_FOCUS_FOR_TESTING);
         waitForHandlerAction(sm.getHandler(), TEST_TIMEOUT);
@@ -166,7 +177,7 @@
     @Test
     public void testNoRingWhenDeviceIsAtEar() {
         CallAudioModeStateMachine sm = new CallAudioModeStateMachine(mSystemStateHelper,
-                mAudioManager, mTestThread.getLooper());
+                mAudioManager, mTestThread.getLooper(), mFeatureFlags, mCommunicationDeviceTracker);
         sm.setCallAudioManager(mCallAudioManager);
         sm.sendMessage(CallAudioModeStateMachine.ABANDON_FOCUS_FOR_TESTING);
         sm.sendMessage(CallAudioModeStateMachine.NEW_HOLDING_CALL, new Builder()
@@ -202,7 +213,7 @@
     @Test
     public void testRegainFocusWhenHfpIsConnectedSilenced() throws Throwable {
         CallAudioModeStateMachine sm = new CallAudioModeStateMachine(mSystemStateHelper,
-                mAudioManager, mTestThread.getLooper());
+                mAudioManager, mTestThread.getLooper(), mFeatureFlags, mCommunicationDeviceTracker);
         sm.setCallAudioManager(mCallAudioManager);
         sm.sendMessage(CallAudioModeStateMachine.ABANDON_FOCUS_FOR_TESTING);
         waitForHandlerAction(sm.getHandler(), TEST_TIMEOUT);
@@ -246,7 +257,7 @@
     @Test
     public void testDoNotRingTwiceWhenHfpConnected() {
         CallAudioModeStateMachine sm = new CallAudioModeStateMachine(mSystemStateHelper,
-                mAudioManager, mTestThread.getLooper());
+                mAudioManager, mTestThread.getLooper(), mFeatureFlags, mCommunicationDeviceTracker);
         sm.setCallAudioManager(mCallAudioManager);
         sm.sendMessage(CallAudioModeStateMachine.ABANDON_FOCUS_FOR_TESTING);
         waitForHandlerAction(sm.getHandler(), TEST_TIMEOUT);
@@ -284,7 +295,7 @@
     @Test
     public void testStartRingingAfterHfpConnectedIfNotAlreadyPlaying() {
         CallAudioModeStateMachine sm = new CallAudioModeStateMachine(mSystemStateHelper,
-                mAudioManager, mTestThread.getLooper());
+                mAudioManager, mTestThread.getLooper(), mFeatureFlags, mCommunicationDeviceTracker);
         sm.setCallAudioManager(mCallAudioManager);
         sm.sendMessage(CallAudioModeStateMachine.ABANDON_FOCUS_FOR_TESTING);
         waitForHandlerAction(sm.getHandler(), TEST_TIMEOUT);
@@ -318,7 +329,46 @@
         verify(mCallAudioManager, times(2)).startRinging();
     }
 
+    @SmallTest
+    @Test
+    public void testAudioFocusRequestWithResolveHiddenDependencies() {
+        CallAudioModeStateMachine sm = new CallAudioModeStateMachine(mSystemStateHelper,
+                mAudioManager, mTestThread.getLooper(), mFeatureFlags, mCommunicationDeviceTracker);
+        when(mFeatureFlags.telecomResolveHiddenDependencies()).thenReturn(true);
+        ArgumentCaptor<AudioFocusRequest> captor = ArgumentCaptor.forClass(AudioFocusRequest.class);
+        sm.setCallAudioManager(mCallAudioManager);
+
+        resetMocks();
+        when(mCallAudioManager.startRinging()).thenReturn(true);
+        when(mCallAudioManager.isRingtonePlaying()).thenReturn(false);
+
+        sm.sendMessage(CallAudioModeStateMachine.ENTER_RING_FOCUS_FOR_TESTING);
+        waitForHandlerAction(sm.getHandler(), TEST_TIMEOUT);
+        verify(mAudioManager).requestAudioFocus(captor.capture());
+        assertTrue(areAudioFocusRequestsMatch(captor.getValue(), RING_AUDIO_FOCUS_REQUEST));
+
+        sm.sendMessage(CallAudioModeStateMachine.ENTER_CALL_FOCUS_FOR_TESTING);
+        waitForHandlerAction(sm.getHandler(), TEST_TIMEOUT);
+        verify(mAudioManager, atLeast(1)).requestAudioFocus(captor.capture());
+        AudioFocusRequest request = captor.getValue();
+        assertTrue(areAudioFocusRequestsMatch(request, CALL_AUDIO_FOCUS_REQUEST));
+
+        sm.sendMessage(CallAudioModeStateMachine.ABANDON_FOCUS_FOR_TESTING);
+    }
+
     private void resetMocks() {
         clearInvocations(mCallAudioManager, mAudioManager);
     }
+
+    private boolean areAudioFocusRequestsMatch(AudioFocusRequest r1, AudioFocusRequest r2) {
+        if ((r1 == null) || (r2 == null)) {
+            return false;
+        }
+
+        if (r1.getFocusGain() != r2.getFocusGain()) {
+            return false;
+        }
+
+        return r1.getAudioAttributes().equals(r2.getAudioAttributes());
+    }
 }
diff --git a/tests/src/com/android/server/telecom/tests/CallAudioModeTransitionTests.java b/tests/src/com/android/server/telecom/tests/CallAudioModeTransitionTests.java
index c7e5aa9..844a216 100644
--- a/tests/src/com/android/server/telecom/tests/CallAudioModeTransitionTests.java
+++ b/tests/src/com/android/server/telecom/tests/CallAudioModeTransitionTests.java
@@ -16,10 +16,22 @@
 
 package com.android.server.telecom.tests;
 
+
+import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.ArgumentMatchers.nullable;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.reset;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 import android.media.AudioManager;
 import android.os.HandlerThread;
-import android.test.suitebuilder.annotation.SmallTest;
 
+import androidx.test.filters.SmallTest;
+
+import com.android.server.telecom.CallAudioCommunicationDeviceTracker;
 import com.android.server.telecom.CallAudioManager;
 import com.android.server.telecom.CallAudioModeStateMachine;
 import com.android.server.telecom.CallAudioModeStateMachine.MessageArgs;
@@ -36,15 +48,6 @@
 import java.util.Collection;
 import java.util.List;
 
-import static org.junit.Assert.assertEquals;
-import static org.mockito.ArgumentMatchers.anyInt;
-import static org.mockito.ArgumentMatchers.eq;
-import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.reset;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
 @RunWith(Parameterized.class)
 public class CallAudioModeTransitionTests extends TelecomTestCase {
     private static class ModeTestParameters {
@@ -103,6 +106,7 @@
     @Mock private SystemStateHelper mSystemStateHelper;
     @Mock private AudioManager mAudioManager;
     @Mock private CallAudioManager mCallAudioManager;
+    @Mock private CallAudioCommunicationDeviceTracker mCommunicationDeviceTracker;
     private final ModeTestParameters mParams;
     private HandlerThread mTestThread;
 
@@ -130,13 +134,14 @@
     @SmallTest
     public void modeTransitionTest() {
         CallAudioModeStateMachine sm = new CallAudioModeStateMachine(mSystemStateHelper,
-                mAudioManager, mTestThread.getLooper());
+                mAudioManager, mTestThread.getLooper(), mFeatureFlags, mCommunicationDeviceTracker);
         sm.setCallAudioManager(mCallAudioManager);
         sm.sendMessage(mParams.initialAudioState);
         waitForHandlerAction(sm.getHandler(), TEST_TIMEOUT);
 
         resetMocks();
         when(mCallAudioManager.startRinging()).thenReturn(true);
+        when(mFeatureFlags.telecomResolveHiddenDependencies()).thenReturn(false);
         if (mParams.initialAudioState
                 == CallAudioModeStateMachine.ENTER_AUDIO_PROCESSING_FOCUS_FOR_TESTING) {
             when(mAudioManager.getMode())
diff --git a/tests/src/com/android/server/telecom/tests/CallAudioRoutePeripheralAdapterTest.java b/tests/src/com/android/server/telecom/tests/CallAudioRoutePeripheralAdapterTest.java
index dfe1483..79247be 100644
--- a/tests/src/com/android/server/telecom/tests/CallAudioRoutePeripheralAdapterTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallAudioRoutePeripheralAdapterTest.java
@@ -24,8 +24,9 @@
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
-import android.test.suitebuilder.annotation.SmallTest;
+import androidx.test.filters.SmallTest;
 
+import com.android.server.telecom.AsyncRingtonePlayer;
 import com.android.server.telecom.CallAudioRoutePeripheralAdapter;
 import com.android.server.telecom.CallAudioRouteStateMachine;
 import com.android.server.telecom.DockManager;
@@ -47,6 +48,7 @@
     @Mock private BluetoothRouteManager mBluetoothRouteManager;
     @Mock private WiredHeadsetManager mWiredHeadsetManager;
     @Mock private DockManager mDockManager;
+    @Mock private AsyncRingtonePlayer mRingtonePlayer;
 
     @Override
     @Before
@@ -57,7 +59,8 @@
                 mCallAudioRouteStateMachine,
                 mBluetoothRouteManager,
                 mWiredHeadsetManager,
-                mDockManager);
+                mDockManager,
+                mRingtonePlayer);
     }
 
     @Override
@@ -126,6 +129,16 @@
         mAdapter.onBluetoothAudioConnected();
         verify(mCallAudioRouteStateMachine).sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.BT_AUDIO_CONNECTED);
+        verify(mRingtonePlayer).updateBtActiveState(true);
+    }
+
+    @SmallTest
+    @Test
+    public void testOnBluetoothAudioConnecting() {
+        mAdapter.onBluetoothAudioConnecting();
+        verify(mCallAudioRouteStateMachine).sendMessageWithSessionInfo(
+                CallAudioRouteStateMachine.BT_AUDIO_CONNECTED);
+        verify(mRingtonePlayer).updateBtActiveState(false);
     }
 
     @SmallTest
@@ -134,6 +147,7 @@
         mAdapter.onBluetoothAudioDisconnected();
         verify(mCallAudioRouteStateMachine).sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.BT_AUDIO_DISCONNECTED);
+        verify(mRingtonePlayer).updateBtActiveState(false);
     }
 
     @SmallTest
diff --git a/tests/src/com/android/server/telecom/tests/CallAudioRouteStateMachineTest.java b/tests/src/com/android/server/telecom/tests/CallAudioRouteStateMachineTest.java
index 569c487..d2da505 100644
--- a/tests/src/com/android/server/telecom/tests/CallAudioRouteStateMachineTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallAudioRouteStateMachineTest.java
@@ -16,6 +16,26 @@
 
 package com.android.server.telecom.tests;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.ArgumentMatchers.nullable;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.same;
+import static org.mockito.Mockito.atLeastOnce;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.reset;
+import static org.mockito.Mockito.timeout;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 import android.bluetooth.BluetoothDevice;
 import android.content.BroadcastReceiver;
 import android.content.Context;
@@ -26,18 +46,20 @@
 import android.media.IAudioService;
 import android.os.HandlerThread;
 import android.telecom.CallAudioState;
-import android.test.suitebuilder.annotation.MediumTest;
-import android.test.suitebuilder.annotation.SmallTest;
 
-import com.android.server.telecom.bluetooth.BluetoothRouteManager;
+import androidx.test.filters.MediumTest;
+import androidx.test.filters.SmallTest;
+
 import com.android.server.telecom.Call;
+import com.android.server.telecom.CallAudioCommunicationDeviceTracker;
+import com.android.server.telecom.CallAudioManager;
 import com.android.server.telecom.CallAudioRouteStateMachine;
 import com.android.server.telecom.CallsManager;
 import com.android.server.telecom.ConnectionServiceWrapper;
-import com.android.server.telecom.CallAudioManager;
 import com.android.server.telecom.StatusBarNotifier;
 import com.android.server.telecom.TelecomSystem;
 import com.android.server.telecom.WiredHeadsetManager;
+import com.android.server.telecom.bluetooth.BluetoothRouteManager;
 
 import org.junit.After;
 import org.junit.Before;
@@ -50,6 +72,7 @@
 import org.mockito.invocation.InvocationOnMock;
 import org.mockito.stubbing.Answer;
 
+import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.Collections;
@@ -57,24 +80,6 @@
 import java.util.List;
 import java.util.Set;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
-import static org.mockito.ArgumentMatchers.eq;
-import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.same;
-import static org.mockito.Mockito.atLeastOnce;
-import static org.mockito.Mockito.doAnswer;
-import static org.mockito.Mockito.doNothing;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.reset;
-import static org.mockito.Mockito.timeout;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
 @RunWith(JUnit4.class)
 public class CallAudioRouteStateMachineTest extends TelecomTestCase {
 
@@ -94,12 +99,14 @@
     @Mock Call fakeSelfManagedCall;
     @Mock Call fakeCall;
     @Mock CallAudioManager mockCallAudioManager;
+    @Mock BluetoothDevice mockWatchDevice;
 
     private CallAudioManager.AudioServiceFactory mAudioServiceFactory;
     private static final int TEST_TIMEOUT = 500;
     private AudioManager mockAudioManager;
     private final TelecomSystem.SyncRoot mLock = new TelecomSystem.SyncRoot() { };
     private HandlerThread mThreadHandler;
+    CallAudioCommunicationDeviceTracker mCommunicationDeviceTracker;
 
     @Override
     @Before
@@ -110,6 +117,8 @@
         mThreadHandler.start();
         mContext = mComponentContextFixture.getTestDouble().getApplicationContext();
         mockAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
+        mCommunicationDeviceTracker = new CallAudioCommunicationDeviceTracker(mContext);
+        mCommunicationDeviceTracker.setBluetoothRouteManager(mockBluetoothRouteManager);
 
         mAudioServiceFactory = new CallAudioManager.AudioServiceFactory() {
             @Override
@@ -129,9 +138,12 @@
         when(fakeSelfManagedCall.isAlive()).thenReturn(true);
         when(fakeSelfManagedCall.getSupportedAudioRoutes()).thenReturn(CallAudioState.ROUTE_ALL);
         when(fakeSelfManagedCall.isSelfManaged()).thenReturn(true);
+        when(mFeatureFlags.transitRouteBeforeAudioDisconnectBt()).thenReturn(false);
 
         doNothing().when(mockConnectionServiceWrapper).onCallAudioStateChanged(any(Call.class),
                 any(CallAudioState.class));
+        when(mFeatureFlags.ignoreAutoRouteToWatchDevice()).thenReturn(false);
+        when(mFeatureFlags.callAudioCommunicationDeviceRefactor()).thenReturn(false);
     }
 
     @Override
@@ -154,7 +166,9 @@
                 mAudioServiceFactory,
                 CallAudioRouteStateMachine.EARPIECE_AUTO_DETECT,
                 mThreadHandler.getLooper(),
-                Runnable::run /** do async stuff sync for test purposes */);
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
 
         // Since we don't know if we're on a platform with an earpiece or not, all we can do
         // is ensure the stateMachine construction didn't fail.  But at least we exercised the
@@ -174,7 +188,9 @@
                 mAudioServiceFactory,
                 CallAudioRouteStateMachine.EARPIECE_AUTO_DETECT,
                 mThreadHandler.getLooper(),
-                Runnable::run /** do async stuff sync for test purposes */);
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
         stateMachine.setCallAudioManager(mockCallAudioManager);
 
         Set<Call> trackedCalls = new HashSet<>(Arrays.asList(fakeCall, fakeSelfManagedCall));
@@ -197,8 +213,8 @@
         stateMachine.sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.UPDATE_SYSTEM_AUDIO_ROUTE);
 
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
 
         // assert expected end state
         assertEquals(stateMachine.getCurrentCallAudioState().getRoute(),
@@ -208,6 +224,112 @@
                 .onCallAudioStateChanged(any(), any());
     }
 
+    @SmallTest
+    @Test
+    public void testSystemAudioStateIsNotUpdatedFlagOff() {
+        CallAudioRouteStateMachine stateMachine = new CallAudioRouteStateMachine(
+                mContext,
+                mockCallsManager,
+                mockBluetoothRouteManager,
+                mockWiredHeadsetManager,
+                mockStatusBarNotifier,
+                mAudioServiceFactory,
+                CallAudioRouteStateMachine.EARPIECE_AUTO_DETECT,
+                mThreadHandler.getLooper(),
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
+        stateMachine.setCallAudioManager(mockCallAudioManager);
+
+        Set<Call> trackedCalls = new HashSet<>(Arrays.asList(fakeCall, fakeSelfManagedCall));
+        when(mockCallsManager.getTrackedCalls()).thenReturn(trackedCalls);
+        when(mFeatureFlags.availableRoutesNeverUpdatedAfterSetSystemAudioState()).thenReturn(false);
+
+        // start state --> ROUTE_EARPIECE
+        CallAudioState initState = new CallAudioState(false, CallAudioState.ROUTE_EARPIECE,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_SPEAKER);
+        stateMachine.initialize(initState);
+
+        stateMachine.setCallAudioManager(mockCallAudioManager);
+
+        assertEquals(stateMachine.getCurrentCallAudioState().getRoute(),
+                CallAudioRouteStateMachine.ROUTE_EARPIECE);
+
+        // ROUTE_EARPIECE  --> ROUTE_SPEAKER
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_SPEAKER,
+                CallAudioRouteStateMachine.SPEAKER_ON);
+
+        stateMachine.sendMessageWithSessionInfo(
+                CallAudioRouteStateMachine.UPDATE_SYSTEM_AUDIO_ROUTE);
+
+        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+
+        CallAudioState expectedCallAudioState = stateMachine.getLastKnownCallAudioState();
+
+        // assert expected end state
+        assertEquals(stateMachine.getCurrentCallAudioState().getRoute(),
+                CallAudioRouteStateMachine.ROUTE_SPEAKER);
+        // should update the audio route on all tracked calls ...
+        verify(mockConnectionServiceWrapper, times(trackedCalls.size()))
+                .onCallAudioStateChanged(any(), any());
+
+        assertNotEquals(expectedCallAudioState, stateMachine.getCurrentCallAudioState());
+    }
+
+    @SmallTest
+    @Test
+    public void testSystemAudioStateIsUpdatedFlagOn() {
+        CallAudioRouteStateMachine stateMachine = new CallAudioRouteStateMachine(
+                mContext,
+                mockCallsManager,
+                mockBluetoothRouteManager,
+                mockWiredHeadsetManager,
+                mockStatusBarNotifier,
+                mAudioServiceFactory,
+                CallAudioRouteStateMachine.EARPIECE_AUTO_DETECT,
+                mThreadHandler.getLooper(),
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
+        stateMachine.setCallAudioManager(mockCallAudioManager);
+
+        Set<Call> trackedCalls = new HashSet<>(Arrays.asList(fakeCall, fakeSelfManagedCall));
+        when(mockCallsManager.getTrackedCalls()).thenReturn(trackedCalls);
+        when(mFeatureFlags.availableRoutesNeverUpdatedAfterSetSystemAudioState()).thenReturn(true);
+
+        // start state --> ROUTE_EARPIECE
+        CallAudioState initState = new CallAudioState(false, CallAudioState.ROUTE_EARPIECE,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_SPEAKER);
+        stateMachine.initialize(initState);
+
+        stateMachine.setCallAudioManager(mockCallAudioManager);
+
+        assertEquals(stateMachine.getCurrentCallAudioState().getRoute(),
+                CallAudioRouteStateMachine.ROUTE_EARPIECE);
+
+        // ROUTE_EARPIECE  --> ROUTE_SPEAKER
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_SPEAKER,
+                CallAudioRouteStateMachine.SPEAKER_ON);
+
+        stateMachine.sendMessageWithSessionInfo(
+                CallAudioRouteStateMachine.UPDATE_SYSTEM_AUDIO_ROUTE);
+
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+
+        CallAudioState expectedCallAudioState = stateMachine.getLastKnownCallAudioState();
+
+        // assert expected end state
+        assertEquals(stateMachine.getCurrentCallAudioState().getRoute(),
+                CallAudioRouteStateMachine.ROUTE_SPEAKER);
+        // should update the audio route on all tracked calls ...
+        verify(mockConnectionServiceWrapper, times(trackedCalls.size()))
+                .onCallAudioStateChanged(any(), any());
+
+        assertEquals(expectedCallAudioState, stateMachine.getCurrentCallAudioState());
+    }
+
     @MediumTest
     @Test
     public void testStreamRingMuteChange() {
@@ -220,7 +342,9 @@
                 mAudioServiceFactory,
                 CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
                 mThreadHandler.getLooper(),
-                Runnable::run /** do async stuff sync for test purposes */);
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
         stateMachine.setCallAudioManager(mockCallAudioManager);
         CallAudioState initState = new CallAudioState(false, CallAudioState.ROUTE_SPEAKER,
                 CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_SPEAKER);
@@ -250,6 +374,7 @@
             foundValid = true;
         }
         assertTrue(foundValid);
+        verify(mockBluetoothRouteManager, timeout(1000L)).getBluetoothAudioConnectedDevice();
     }
 
     @MediumTest
@@ -264,7 +389,9 @@
                 mAudioServiceFactory,
                 CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
                 mThreadHandler.getLooper(),
-                Runnable::run /** do async stuff sync for test purposes */);
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
 
         when(mockBluetoothRouteManager.isBluetoothAudioConnectedOrPending()).thenReturn(false);
         when(mockBluetoothRouteManager.isBluetoothAvailable()).thenReturn(true);
@@ -287,14 +414,14 @@
         CallAudioState expectedMiddleState = new CallAudioState(false,
                 CallAudioState.ROUTE_WIRED_HEADSET,
                 CallAudioState.ROUTE_WIRED_HEADSET | CallAudioState.ROUTE_SPEAKER);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
         verifyNewSystemCallAudioState(initState, expectedMiddleState);
         resetMocks();
 
         stateMachine.sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.DISCONNECT_WIRED_HEADSET);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
         verifyNewSystemCallAudioState(expectedMiddleState, initState);
     }
 
@@ -310,7 +437,9 @@
                 mAudioServiceFactory,
                 CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
                 mThreadHandler.getLooper(),
-                Runnable::run /** do async stuff sync for test purposes */);
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
         stateMachine.setCallAudioManager(mockCallAudioManager);
 
         when(mockBluetoothRouteManager.isBluetoothAudioConnectedOrPending()).thenReturn(false);
@@ -331,7 +460,7 @@
                 CallAudioState.ROUTE_EARPIECE,
                 CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH);
 
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
         verifyNewSystemCallAudioState(initState, expectedEndState);
         resetMocks();
         stateMachine.sendMessageWithSessionInfo(
@@ -339,7 +468,7 @@
         stateMachine.sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.BT_ACTIVE_DEVICE_PRESENT);
 
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
         assertEquals(expectedEndState, stateMachine.getCurrentCallAudioState());
     }
 
@@ -355,7 +484,9 @@
                 mAudioServiceFactory,
                 CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
                 mThreadHandler.getLooper(),
-                Runnable::run /** do async stuff sync for test purposes */);
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
         stateMachine.setCallAudioManager(mockCallAudioManager);
         Collection<BluetoothDevice> availableDevices = Collections.singleton(bluetoothDevice1);
 
@@ -380,12 +511,12 @@
                 CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH,
                 null, availableDevices);
 
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
         verifyNewSystemCallAudioState(initState, expectedMidState);
         // clear out the handler state before resetting mocks in order to avoid introducing a
         // CallAudioState that has a null list of supported BT devices
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
         resetMocks();
 
         // Now, switch back to BT explicitly
@@ -403,9 +534,9 @@
                 CallAudioState.ROUTE_BLUETOOTH,
                 CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH,
                 bluetoothDevice1, availableDevices);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
         // second wait needed for the BT_AUDIO_CONNECTED message
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
         verifyNewSystemCallAudioState(expectedMidState, expectedEndState);
 
         stateMachine.sendMessageWithSessionInfo(
@@ -415,9 +546,9 @@
         stateMachine.sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.BT_ACTIVE_DEVICE_PRESENT);
 
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
         // second wait needed for the BT_AUDIO_CONNECTED message
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
         // Verify that we're still on bluetooth.
         assertEquals(expectedEndState, stateMachine.getCurrentCallAudioState());
     }
@@ -434,7 +565,9 @@
                 mAudioServiceFactory,
                 CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
                 mThreadHandler.getLooper(),
-                Runnable::run /** do async stuff sync for test purposes */);
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
         stateMachine.setCallAudioManager(mockCallAudioManager);
 
         when(mockBluetoothRouteManager.isBluetoothAudioConnectedOrPending()).thenReturn(false);
@@ -449,13 +582,13 @@
 
         stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_FOCUS,
                 CallAudioRouteStateMachine.RINGING_FOCUS);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
 
         verify(mockBluetoothRouteManager, never()).connectBluetoothAudio(nullable(String.class));
 
         stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_FOCUS,
                 CallAudioRouteStateMachine.ACTIVE_FOCUS);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
         verify(mockBluetoothRouteManager, times(1)).connectBluetoothAudio(nullable(String.class));
     }
 
@@ -471,7 +604,9 @@
                 mAudioServiceFactory,
                 CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
                 mThreadHandler.getLooper(),
-                Runnable::run /** do async stuff sync for test purposes */);
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
         stateMachine.setCallAudioManager(mockCallAudioManager);
         setInBandRing(false);
         when(mockBluetoothRouteManager.isBluetoothAudioConnectedOrPending()).thenReturn(false);
@@ -485,7 +620,7 @@
                 CallAudioRouteStateMachine.RINGING_FOCUS);
         // Wait for the state machine to finish transiting to ActiveEarpiece before hooking up
         // bluetooth mocks
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
 
         when(mockBluetoothRouteManager.isBluetoothAvailable()).thenReturn(true);
         when(mockBluetoothRouteManager.getConnectedDevices())
@@ -494,7 +629,7 @@
                 CallAudioRouteStateMachine.BLUETOOTH_DEVICE_LIST_CHANGED);
         stateMachine.sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.BT_ACTIVE_DEVICE_PRESENT);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
 
         verify(mockBluetoothRouteManager, never()).connectBluetoothAudio(null);
         CallAudioState expectedEndState = new CallAudioState(false,
@@ -505,14 +640,17 @@
 
         stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_FOCUS,
                 CallAudioRouteStateMachine.ACTIVE_FOCUS);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
         verify(mockBluetoothRouteManager, times(1)).connectBluetoothAudio(null);
 
         when(mockBluetoothRouteManager.getBluetoothAudioConnectedDevice())
                 .thenReturn(bluetoothDevice1);
         stateMachine.sendMessage(CallAudioRouteStateMachine.BT_AUDIO_CONNECTED);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
-        verify(mockCallAudioManager, times(1)).onRingerModeChange();
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+        // It is possible that this will be called twice from ActiveBluetoothRoute#enter. The extra
+        // call to setBluetoothOn will trigger BT_AUDIO_CONNECTED, which also ends up invoking
+        // CallAudioManager#onRingerModeChange.
+        verify(mockCallAudioManager, atLeastOnce()).onRingerModeChange();
     }
 
     @SmallTest
@@ -527,7 +665,9 @@
                 mAudioServiceFactory,
                 CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
                 mThreadHandler.getLooper(),
-                Runnable::run /** do async stuff sync for test purposes */);
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
         stateMachine.setCallAudioManager(mockCallAudioManager);
         List<BluetoothDevice> availableDevices =
                 Arrays.asList(bluetoothDevice1, bluetoothDevice2, bluetoothDevice3);
@@ -553,17 +693,80 @@
 
         stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.USER_SWITCH_BLUETOOTH,
                 0, bluetoothDevice2.getAddress());
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
 
         verify(mockBluetoothRouteManager).connectBluetoothAudio(bluetoothDevice2.getAddress());
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
         CallAudioState expectedEndState = new CallAudioState(false,
                 CallAudioState.ROUTE_BLUETOOTH,
                 CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH,
                 bluetoothDevice2,
                 availableDevices);
 
-        verifyNewSystemCallAudioState(initState, expectedEndState);
+        assertEquals(expectedEndState, stateMachine.getCurrentCallAudioState());
+    }
+
+    @SmallTest
+    @Test
+    public void testCallDisconnectedWhenAudioRoutedToBluetooth() {
+        when(mFeatureFlags.callAudioCommunicationDeviceRefactor()).thenReturn(true);
+        CallAudioRouteStateMachine stateMachine = new CallAudioRouteStateMachine(
+                mContext,
+                mockCallsManager,
+                mockBluetoothRouteManager,
+                mockWiredHeadsetManager,
+                mockStatusBarNotifier,
+                mAudioServiceFactory,
+                CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
+                mThreadHandler.getLooper(),
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
+        stateMachine.setCallAudioManager(mockCallAudioManager);
+        List<BluetoothDevice> availableDevices = Arrays.asList(bluetoothDevice1);
+
+        when(mockAudioManager.isSpeakerphoneOn()).thenReturn(false);
+        when(mockBluetoothRouteManager.isBluetoothAudioConnectedOrPending()).thenReturn(false);
+        when(mockBluetoothRouteManager.isBluetoothAvailable()).thenReturn(true);
+        when(mockBluetoothRouteManager.getConnectedDevices()).thenReturn(availableDevices);
+        when(mockBluetoothRouteManager.isInbandRingingEnabled()).thenReturn(true);
+        when(mFeatureFlags.transitRouteBeforeAudioDisconnectBt()).thenReturn(true);
+        doAnswer(invocation -> {
+            when(mockBluetoothRouteManager.getBluetoothAudioConnectedDevice())
+                    .thenReturn(bluetoothDevice1);
+            stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.BT_AUDIO_CONNECTED);
+            return null;
+        }).when(mockBluetoothRouteManager).connectBluetoothAudio(bluetoothDevice1.getAddress());
+        doAnswer(invocation -> {
+            when(mockBluetoothRouteManager.getBluetoothAudioConnectedDevice())
+                    .thenReturn(bluetoothDevice1);
+            stateMachine.sendMessageWithSessionInfo(
+                    CallAudioRouteStateMachine.BT_AUDIO_DISCONNECTED);
+            return null;
+        }).when(mockBluetoothRouteManager).disconnectAudio();
+
+        CallAudioState initState = new CallAudioState(false, CallAudioState.ROUTE_BLUETOOTH,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH, null,
+                availableDevices);
+        stateMachine.initialize(initState);
+
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_FOCUS,
+                CallAudioRouteStateMachine.ACTIVE_FOCUS);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_FOCUS,
+                CallAudioRouteStateMachine.NO_FOCUS, bluetoothDevice1.getAddress());
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+
+        verify(mockBluetoothRouteManager).disconnectAudio();
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+        CallAudioState expectedEndState = new CallAudioState(false,
+                CallAudioState.ROUTE_BLUETOOTH,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH,
+                bluetoothDevice1,
+                availableDevices);
+
+        assertEquals(expectedEndState, stateMachine.getCurrentCallAudioState());
     }
 
     @SmallTest
@@ -578,7 +781,9 @@
                 mAudioServiceFactory,
                 CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
                 mThreadHandler.getLooper(),
-                Runnable::run /** do async stuff sync for test purposes */);
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
         stateMachine.setCallAudioManager(mockCallAudioManager);
         when(mockAudioManager.isSpeakerphoneOn()).thenReturn(false);
         CallAudioState initState = new CallAudioState(false, CallAudioState.ROUTE_SPEAKER,
@@ -587,13 +792,13 @@
 
         // Raise a dock connect event.
         stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.CONNECT_DOCK);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
         assertTrue(!stateMachine.isInActiveState());
         verify(mockAudioManager, never()).setSpeakerphoneOn(eq(true));
 
         // Raise a dock disconnect event.
         stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.DISCONNECT_DOCK);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
         assertTrue(!stateMachine.isInActiveState());
         verify(mockAudioManager, never()).setSpeakerphoneOn(eq(false));
     }
@@ -610,7 +815,9 @@
                 mAudioServiceFactory,
                 CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
                 mThreadHandler.getLooper(),
-                Runnable::run /** do async stuff sync for test purposes */);
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
         stateMachine.setCallAudioManager(mockCallAudioManager);
 
         when(mockAudioManager.isSpeakerphoneOn()).thenReturn(false);
@@ -622,7 +829,7 @@
         // Switch to active, pretending that a call came in.
         stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_FOCUS,
                 CallAudioRouteStateMachine.ACTIVE_FOCUS);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
 
         // Make sure that we've successfully switched to the active speaker route and that we've
         // called setSpeakerOn
@@ -645,7 +852,9 @@
                 mAudioServiceFactory,
                 CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
                 mThreadHandler.getLooper(),
-                Runnable::run /** do async stuff sync for test purposes */);
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
         stateMachine.setCallAudioManager(mockCallAudioManager);
         List<BluetoothDevice> availableDevices =
                 Arrays.asList(bluetoothDevice1, bluetoothDevice2);
@@ -667,7 +876,7 @@
         // Switch to active, pretending that a call came in.
         stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_FOCUS,
                 CallAudioRouteStateMachine.ACTIVE_FOCUS);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
 
         // Make sure that we've successfully switched to the active BT route and that we've
         // called connectAudio on the right device.
@@ -678,6 +887,112 @@
 
     @SmallTest
     @Test
+    public void testSetAndClearEarpieceCommunicationDevice() {
+        when(mFeatureFlags.callAudioCommunicationDeviceRefactor()).thenReturn(true);
+        CallAudioRouteStateMachine stateMachine = new CallAudioRouteStateMachine(
+                mContext,
+                mockCallsManager,
+                mockBluetoothRouteManager,
+                mockWiredHeadsetManager,
+                mockStatusBarNotifier,
+                mAudioServiceFactory,
+                CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
+                mThreadHandler.getLooper(),
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
+        stateMachine.setCallAudioManager(mockCallAudioManager);
+
+        AudioDeviceInfo earpiece = mock(AudioDeviceInfo.class);
+        when(earpiece.getType()).thenReturn(AudioDeviceInfo.TYPE_BUILTIN_EARPIECE);
+        when(earpiece.getAddress()).thenReturn("");
+        List<AudioDeviceInfo> devices = new ArrayList<>();
+        devices.add(earpiece);
+
+        when(mockAudioManager.getAvailableCommunicationDevices())
+                .thenReturn(devices);
+        when(mockAudioManager.setCommunicationDevice(eq(earpiece)))
+                .thenReturn(true);
+        when(mockAudioManager.getCommunicationDevice()).thenReturn(earpiece);
+
+        CallAudioState initState = new CallAudioState(false, CallAudioState.ROUTE_EARPIECE,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_SPEAKER |
+                        CallAudioState.ROUTE_WIRED_HEADSET);
+        stateMachine.initialize(initState);
+
+        // Switch to active
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_FOCUS,
+                CallAudioRouteStateMachine.ACTIVE_FOCUS);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+
+        // Make sure that we've successfully switched to the active earpiece and that we set the
+        // communication device.
+        assertTrue(stateMachine.isInActiveState());
+        ArgumentCaptor<AudioDeviceInfo> infoArgumentCaptor = ArgumentCaptor.forClass(
+                AudioDeviceInfo.class);
+        verify(mockAudioManager).setCommunicationDevice(infoArgumentCaptor.capture());
+        assertEquals(AudioDeviceInfo.TYPE_BUILTIN_EARPIECE,
+                infoArgumentCaptor.getValue().getType());
+
+        // Route earpiece to speaker
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_SPEAKER,
+                CallAudioRouteStateMachine.SPEAKER_ON);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+
+        // Assert that communication device was cleared
+        verify(mockAudioManager).clearCommunicationDevice();
+    }
+
+    @SmallTest
+    @Test
+    public void testSetAndClearWiredHeadsetCommunicationDevice() {
+        when(mFeatureFlags.callAudioCommunicationDeviceRefactor()).thenReturn(true);
+        verifySetAndClearHeadsetCommunicationDevice(AudioDeviceInfo.TYPE_WIRED_HEADSET);
+    }
+
+    @SmallTest
+    @Test
+    public void testSetAndClearUsbHeadsetCommunicationDevice() {
+        when(mFeatureFlags.callAudioCommunicationDeviceRefactor()).thenReturn(true);
+        verifySetAndClearHeadsetCommunicationDevice(AudioDeviceInfo.TYPE_USB_HEADSET);
+    }
+
+    @SmallTest
+    @Test
+    public void testActiveFocusRouteSwitchFromQuiescentBluetooth() {
+        when(mFeatureFlags.callAudioCommunicationDeviceRefactor()).thenReturn(true);
+        CallAudioRouteStateMachine stateMachine = new CallAudioRouteStateMachine(
+                mContext,
+                mockCallsManager,
+                mockBluetoothRouteManager,
+                mockWiredHeadsetManager,
+                mockStatusBarNotifier,
+                mAudioServiceFactory,
+                CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
+                mThreadHandler.getLooper(),
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
+        stateMachine.setCallAudioManager(mockCallAudioManager);
+
+        // Start the route in quiescent and ensure that a switch to ACTIVE_FOCUS transitions to
+        // the corresponding active route even when there aren't any active BT devices available.
+        CallAudioState initState = new CallAudioState(false,
+                CallAudioState.ROUTE_BLUETOOTH,
+                CallAudioState.ROUTE_BLUETOOTH | CallAudioState.ROUTE_EARPIECE);
+        stateMachine.initialize(initState);
+
+        // Switch to active
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_FOCUS,
+                CallAudioRouteStateMachine.ACTIVE_FOCUS);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+
+        // Make sure that we've successfully switched to the active route on BT
+        assertTrue(stateMachine.isInActiveState());
+    }
+
+    @SmallTest
+    @Test
     public void testInitializationWithEarpieceNoHeadsetNoBluetooth() {
         CallAudioState expectedState = new CallAudioState(false, CallAudioState.ROUTE_EARPIECE,
                 CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_SPEAKER);
@@ -761,7 +1076,9 @@
                 mAudioServiceFactory,
                 CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
                 mThreadHandler.getLooper(),
-                Runnable::run /** do async stuff sync for test purposes */);
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
         stateMachine.initialize();
         assertEquals(expectedState, stateMachine.getCurrentCallAudioState());
     }
@@ -778,7 +1095,9 @@
                 mAudioServiceFactory,
                 CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
                 mThreadHandler.getLooper(),
-                Runnable::run /** do async stuff sync for test purposes */);
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
         stateMachine.setCallAudioManager(mockCallAudioManager);
 
         CallAudioState initState = new CallAudioState(false, CallAudioState.ROUTE_EARPIECE,
@@ -789,15 +1108,206 @@
         CallAudioState expectedEndState = new CallAudioState(false,
                 CallAudioState.ROUTE_STREAMING, CallAudioState.ROUTE_STREAMING);
 
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
         verifyNewSystemCallAudioState(initState, expectedEndState);
         resetMocks();
         stateMachine.sendMessageWithSessionInfo(
                 CallAudioRouteStateMachine.STREAMING_FORCE_DISABLED);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
         assertEquals(initState, stateMachine.getCurrentCallAudioState());
     }
 
+    @SmallTest
+    @Test
+    public void testIgnoreSpeakerOffMessage() {
+        when(mockBluetoothRouteManager.isInbandRingingEnabled()).thenReturn(true);
+        when(mockBluetoothRouteManager.getBluetoothAudioConnectedDevice())
+                .thenReturn(bluetoothDevice1);
+        when(mockBluetoothRouteManager.isBluetoothAudioConnectedOrPending()).thenReturn(true);
+        CallAudioRouteStateMachine stateMachine = new CallAudioRouteStateMachine(
+                mContext,
+                mockCallsManager,
+                mockBluetoothRouteManager,
+                mockWiredHeadsetManager,
+                mockStatusBarNotifier,
+                mAudioServiceFactory,
+                CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
+                mThreadHandler.getLooper(),
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
+        stateMachine.setCallAudioManager(mockCallAudioManager);
+
+        CallAudioState initState = new CallAudioState(false, CallAudioState.ROUTE_SPEAKER,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_SPEAKER
+                        | CallAudioState.ROUTE_BLUETOOTH);
+        stateMachine.initialize(initState);
+
+        doAnswer(
+                (address) -> {
+                    stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SPEAKER_OFF);
+                    stateMachine.sendMessageDelayed(CallAudioRouteStateMachine.BT_AUDIO_CONNECTED,
+                            5000L);
+                    return null;
+        }).when(mockBluetoothRouteManager).connectBluetoothAudio(anyString());
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_FOCUS,
+                CallAudioRouteStateMachine.ACTIVE_FOCUS);
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.USER_SWITCH_BLUETOOTH);
+
+        CallAudioState expectedState = new CallAudioState(false, CallAudioState.ROUTE_SPEAKER,
+                CallAudioState.ROUTE_SPEAKER | CallAudioState.ROUTE_BLUETOOTH
+                        | CallAudioState.ROUTE_EARPIECE);
+        assertEquals(expectedState, stateMachine.getCurrentCallAudioState());
+    }
+
+    @MediumTest
+    @Test
+    public void testIgnoreImplicitBTSwitchWhenDeviceIsWatch() {
+        when(mFeatureFlags.ignoreAutoRouteToWatchDevice()).thenReturn(true);
+        when(mFeatureFlags.callAudioCommunicationDeviceRefactor()).thenReturn(true);
+        CallAudioRouteStateMachine stateMachine = new CallAudioRouteStateMachine(
+                mContext,
+                mockCallsManager,
+                mockBluetoothRouteManager,
+                mockWiredHeadsetManager,
+                mockStatusBarNotifier,
+                mAudioServiceFactory,
+                CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
+                mThreadHandler.getLooper(),
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
+        stateMachine.setCallAudioManager(mockCallAudioManager);
+
+        AudioDeviceInfo headset = mock(AudioDeviceInfo.class);
+        when(headset.getType()).thenReturn(AudioDeviceInfo.TYPE_WIRED_HEADSET);
+        when(headset.getAddress()).thenReturn("");
+        List<AudioDeviceInfo> devices = new ArrayList<>();
+        devices.add(headset);
+
+        when(mockAudioManager.getAvailableCommunicationDevices())
+                .thenReturn(devices);
+        when(mockAudioManager.setCommunicationDevice(eq(headset)))
+                .thenReturn(true);
+        when(mockAudioManager.getCommunicationDevice()).thenReturn(headset);
+
+        CallAudioState initState = new CallAudioState(false,
+                CallAudioState.ROUTE_WIRED_HEADSET, CallAudioState.ROUTE_WIRED_HEADSET
+                | CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH);
+        stateMachine.initialize(initState);
+
+        // Switch to active
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_FOCUS,
+                CallAudioRouteStateMachine.ACTIVE_FOCUS);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+
+        // Make sure that we've successfully switched to the active headset.
+        assertTrue(stateMachine.isInActiveState());
+        ArgumentCaptor<AudioDeviceInfo> infoArgumentCaptor = ArgumentCaptor.forClass(
+                AudioDeviceInfo.class);
+        verify(mockAudioManager).setCommunicationDevice(infoArgumentCaptor.capture());
+        assertEquals(AudioDeviceInfo.TYPE_WIRED_HEADSET, infoArgumentCaptor.getValue().getType());
+
+        // Set up watch device as only available BT device.
+        Collection<BluetoothDevice> availableDevices = Collections.singleton(mockWatchDevice);
+
+        when(mockBluetoothRouteManager.isBluetoothAudioConnectedOrPending()).thenReturn(false);
+        when(mockBluetoothRouteManager.isBluetoothAvailable()).thenReturn(true);
+        when(mockBluetoothRouteManager.getConnectedDevices()).thenReturn(availableDevices);
+        when(mockBluetoothRouteManager.isWatch(any(BluetoothDevice.class))).thenReturn(true);
+
+        // Disconnect wired headset to force switch to BT (verify that we ignore the implicit switch
+        // to BT when the watch is the only connected device and that we move into the next
+        // available route.
+        stateMachine.sendMessageWithSessionInfo(
+                CallAudioRouteStateMachine.DISCONNECT_WIRED_HEADSET);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+        CallAudioState expectedState = new CallAudioState(false, CallAudioState.ROUTE_EARPIECE,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH,
+                null, availableDevices);
+        assertEquals(expectedState, stateMachine.getCurrentCallAudioState());
+    }
+
+    @SmallTest
+    @Test
+    public void testQuiescentBluetoothRouteResetMute() {
+        when(mFeatureFlags.resetMuteWhenEnteringQuiescentBtRoute()).thenReturn(true);
+        CallAudioRouteStateMachine stateMachine = new CallAudioRouteStateMachine(
+                mContext,
+                mockCallsManager,
+                mockBluetoothRouteManager,
+                mockWiredHeadsetManager,
+                mockStatusBarNotifier,
+                mAudioServiceFactory,
+                CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
+                mThreadHandler.getLooper(),
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
+        stateMachine.setCallAudioManager(mockCallAudioManager);
+
+        CallAudioState initState = new CallAudioState(false,
+                CallAudioState.ROUTE_BLUETOOTH, CallAudioState.ROUTE_SPEAKER
+                | CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH);
+        stateMachine.initialize(initState);
+
+        // Switch to active and mute
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_FOCUS,
+                CallAudioRouteStateMachine.ACTIVE_FOCUS);
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.BT_AUDIO_CONNECTED);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+        assertTrue(stateMachine.isInActiveState());
+
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.MUTE_ON);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+        CallAudioState expectedState = new CallAudioState(true,
+                CallAudioState.ROUTE_BLUETOOTH, CallAudioState.ROUTE_SPEAKER
+                | CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH);
+        assertEquals(expectedState, stateMachine.getCurrentCallAudioState());
+
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_FOCUS,
+                CallAudioRouteStateMachine.NO_FOCUS);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+
+        expectedState = new CallAudioState(false,
+                CallAudioState.ROUTE_BLUETOOTH, CallAudioState.ROUTE_SPEAKER
+                | CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH);
+        // TODO: Re-enable this part of the test; this is now failing because we have to
+        // revert ag/23783145.
+        // assertEquals(expectedState, stateMachine.getCurrentCallAudioState());
+    }
+
+    @SmallTest
+    @Test
+    public void testSupportRouteMaskUpdateWhenBtAudioConnected() {
+        when(mFeatureFlags.updateRouteMaskWhenBtConnected()).thenReturn(true);
+        CallAudioRouteStateMachine stateMachine = new CallAudioRouteStateMachine(
+                mContext,
+                mockCallsManager,
+                mockBluetoothRouteManager,
+                mockWiredHeadsetManager,
+                mockStatusBarNotifier,
+                mAudioServiceFactory,
+                CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
+                mThreadHandler.getLooper(),
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
+        stateMachine.setCallAudioManager(mockCallAudioManager);
+
+        CallAudioState initState = new CallAudioState(false,
+                CallAudioState.ROUTE_EARPIECE,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_SPEAKER);
+        stateMachine.initialize(initState);
+
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.BT_AUDIO_CONNECTED);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+        CallAudioState expectedState = new CallAudioState(false, CallAudioState.ROUTE_BLUETOOTH,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_SPEAKER
+                        | CallAudioState.ROUTE_BLUETOOTH);
+        assertEquals(expectedState, stateMachine.getCurrentCallAudioState());
+    }
+
     private void initializationTestHelper(CallAudioState expectedState,
             int earpieceControl) {
         when(mockWiredHeadsetManager.isPluggedIn()).thenReturn(
@@ -816,7 +1326,9 @@
                 mAudioServiceFactory,
                 earpieceControl,
                 mThreadHandler.getLooper(),
-                Runnable::run /** do async stuff sync for test purposes */);
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
         stateMachine.initialize();
         assertEquals(expectedState, stateMachine.getCurrentCallAudioState());
     }
@@ -856,4 +1368,59 @@
         doNothing().when(mockConnectionServiceWrapper).onCallAudioStateChanged(any(Call.class),
                 any(CallAudioState.class));
     }
+
+    private void verifySetAndClearHeadsetCommunicationDevice(int audioType) {
+        CallAudioRouteStateMachine stateMachine = new CallAudioRouteStateMachine(
+                mContext,
+                mockCallsManager,
+                mockBluetoothRouteManager,
+                mockWiredHeadsetManager,
+                mockStatusBarNotifier,
+                mAudioServiceFactory,
+                CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
+                mThreadHandler.getLooper(),
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
+        stateMachine.setCallAudioManager(mockCallAudioManager);
+
+        AudioDeviceInfo headset = mock(AudioDeviceInfo.class);
+        when(headset.getType()).thenReturn(audioType);
+        when(headset.getAddress()).thenReturn("");
+        List<AudioDeviceInfo> devices = new ArrayList<>();
+        devices.add(headset);
+
+        when(mockAudioManager.getAvailableCommunicationDevices())
+                .thenReturn(devices);
+        when(mockAudioManager.setCommunicationDevice(eq(headset)))
+                .thenReturn(true);
+        when(mockAudioManager.getCommunicationDevice()).thenReturn(headset);
+
+        CallAudioState initState = new CallAudioState(false,
+                CallAudioState.ROUTE_WIRED_HEADSET,
+                CallAudioState.ROUTE_WIRED_HEADSET | CallAudioState.ROUTE_EARPIECE);
+        stateMachine.initialize(initState);
+
+        // Switch to active
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_FOCUS,
+                CallAudioRouteStateMachine.ACTIVE_FOCUS);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+
+        // Make sure that we've successfully switched to the active headset and that we set the
+        // communication device.
+        assertTrue(stateMachine.isInActiveState());
+        ArgumentCaptor<AudioDeviceInfo> infoArgumentCaptor = ArgumentCaptor.forClass(
+                AudioDeviceInfo.class);
+        verify(mockAudioManager).setCommunicationDevice(infoArgumentCaptor.capture());
+        assertEquals(audioType, infoArgumentCaptor.getValue().getType());
+
+        // Route out of headset route
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.SWITCH_FOCUS,
+                CallAudioRouteStateMachine.ACTIVE_FOCUS);
+        stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.USER_SWITCH_EARPIECE);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+
+        // Assert that communication device was cleared
+        verify(mockAudioManager).clearCommunicationDevice();
+    }
 }
diff --git a/tests/src/com/android/server/telecom/tests/CallAudioRouteTransitionTests.java b/tests/src/com/android/server/telecom/tests/CallAudioRouteTransitionTests.java
index cf684de..6b9b5c8 100644
--- a/tests/src/com/android/server/telecom/tests/CallAudioRouteTransitionTests.java
+++ b/tests/src/com/android/server/telecom/tests/CallAudioRouteTransitionTests.java
@@ -20,10 +20,10 @@
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.nullable;
 import static org.mockito.ArgumentMatchers.same;
+import static org.mockito.Mockito.atLeastOnce;
 import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.doNothing;
 import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.timeout;
 import static org.mockito.Mockito.verify;
@@ -37,9 +37,11 @@
 import android.os.Handler;
 import android.os.HandlerThread;
 import android.telecom.CallAudioState;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.Call;
+import com.android.server.telecom.CallAudioCommunicationDeviceTracker;
 import com.android.server.telecom.CallAudioManager;
 import com.android.server.telecom.CallAudioRouteStateMachine;
 import com.android.server.telecom.CallsManager;
@@ -155,6 +157,7 @@
     @Mock StatusBarNotifier mockStatusBarNotifier;
     @Mock Call fakeCall;
     @Mock CallAudioManager mockCallAudioManager;
+    private CallAudioCommunicationDeviceTracker mCommunicationDeviceTracker;
     private CallAudioManager.AudioServiceFactory mAudioServiceFactory;
     private static final int TEST_TIMEOUT = 500;
     private AudioManager mockAudioManager;
@@ -174,6 +177,8 @@
         mHandlerThread.start();
         mContext = mComponentContextFixture.getTestDouble().getApplicationContext();
         mockAudioManager = (AudioManager) mContext.getSystemService(Context.AUDIO_SERVICE);
+        mCommunicationDeviceTracker = new CallAudioCommunicationDeviceTracker(mContext);
+        mCommunicationDeviceTracker.setBluetoothRouteManager(mockBluetoothRouteManager);
 
         mAudioServiceFactory = new CallAudioManager.AudioServiceFactory() {
             @Override
@@ -270,7 +275,9 @@
                 mAudioServiceFactory,
                 mParams.earpieceControl,
                 mHandlerThread.getLooper(),
-                Runnable::run /** do async stuff sync for test purposes */);
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
         stateMachine.setCallAudioManager(mockCallAudioManager);
 
         setupMocksForParams(stateMachine, mParams);
@@ -288,17 +295,17 @@
         if (mParams.initialRoute == CallAudioState.ROUTE_BLUETOOTH) {
             stateMachine.sendMessageWithSessionInfo(CallAudioRouteStateMachine.BT_AUDIO_CONNECTED);
         }
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
 
         // Clear invocations on mocks to discard stuff from initialization
         clearInvocations();
 
         sendActionToStateMachine(stateMachine);
 
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
 
-        Handler h = stateMachine.getHandler();
+        Handler h = stateMachine.getAdapterHandler();
         waitForHandlerAction(h, TEST_TIMEOUT);
         stateMachine.quitStateMachine();
 
@@ -311,7 +318,7 @@
                 break;
             case ON:
                 if (mParams.expectedBluetoothDevice == null) {
-                    verify(mockBluetoothRouteManager).connectBluetoothAudio(null);
+                    verify(mockBluetoothRouteManager, atLeastOnce()).connectBluetoothAudio(null);
                 } else {
                     verify(mockBluetoothRouteManager).connectBluetoothAudio(
                             mParams.expectedBluetoothDevice.getAddress());
@@ -367,7 +374,9 @@
                 mAudioServiceFactory,
                 mParams.earpieceControl,
                 mHandlerThread.getLooper(),
-                Runnable::run /** do async stuff sync for test purposes */);
+                Runnable::run /** do async stuff sync for test purposes */,
+                mCommunicationDeviceTracker,
+                mFeatureFlags);
         stateMachine.setCallAudioManager(mockCallAudioManager);
 
         // Set up bluetooth and speakerphone state
@@ -388,8 +397,8 @@
         // Omit the focus-getting statement
         sendActionToStateMachine(stateMachine);
 
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
-        waitForHandlerAction(stateMachine.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(stateMachine.getAdapterHandler(), TEST_TIMEOUT);
 
         stateMachine.quitStateMachine();
 
diff --git a/tests/src/com/android/server/telecom/tests/CallControlTest.java b/tests/src/com/android/server/telecom/tests/CallControlTest.java
index 2613206..c69521a 100644
--- a/tests/src/com/android/server/telecom/tests/CallControlTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallControlTest.java
@@ -39,14 +39,7 @@
 import java.util.UUID;
 
 public class CallControlTest extends TelecomTestCase {
-
-    private static final PhoneAccountHandle mHandle = new PhoneAccountHandle(
-            new ComponentName("foo", "bar"), "1");
-
-    @Mock
-    private ICallControl mICallControl;
-    @Mock
-    private ClientTransactionalServiceRepository mRepository;
+    @Mock private ICallControl mICallControl;
     private static final String CALL_ID_1 = UUID.randomUUID().toString();
 
     @Override
@@ -64,15 +57,7 @@
 
     @Test
     public void testGetCallId() {
-        CallControl control = new CallControl(CALL_ID_1, mICallControl, mRepository, mHandle);
+        CallControl control = new CallControl(CALL_ID_1, mICallControl);
         assertEquals(CALL_ID_1, control.getCallId().toString());
     }
-
-    @Test
-    public void testCallControlHitsIllegalStateException() {
-        CallControl control = new CallControl(CALL_ID_1, null, mRepository, mHandle);
-        assertThrows(IllegalStateException.class, () ->
-                control.setInactive(Runnable::run, result -> {
-                }));
-    }
 }
diff --git a/tests/src/com/android/server/telecom/tests/CallEndpointControllerTest.java b/tests/src/com/android/server/telecom/tests/CallEndpointControllerTest.java
index f4008aa..9101a19 100644
--- a/tests/src/com/android/server/telecom/tests/CallEndpointControllerTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallEndpointControllerTest.java
@@ -17,6 +17,7 @@
 package com.android.server.telecom.tests;
 
 import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotEquals;
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
@@ -50,7 +51,9 @@
 import java.util.Arrays;
 import java.util.Collection;
 import java.util.HashSet;
+import java.util.List;
 import java.util.Set;
+import java.util.stream.Collectors;
 
 @RunWith(JUnit4.class)
 public class CallEndpointControllerTest extends TelecomTestCase {
@@ -81,6 +84,9 @@
             availableBluetooth1);
     private static final CallAudioState audioState7 = new CallAudioState(false,
             CallAudioState.ROUTE_STREAMING, CallAudioState.ROUTE_ALL, null, availableBluetooth1);
+    private static final CallAudioState audioState8 = new CallAudioState(false,
+            CallAudioState.ROUTE_EARPIECE, CallAudioState.ROUTE_ALL, bluetoothDevice1,
+            availableBluetooth2);
 
     private CallEndpointController mCallEndpointController;
 
@@ -177,6 +183,74 @@
         verify(mConnectionService, never()).onMuteStateChanged(any(), anyBoolean());
     }
 
+    /**
+     * Ensure that {@link CallAudioManager#setAudioRoute(int, String)} is invoked when the user
+     * requests to switch to a bluetooth CallEndpoint.  This is an edge case where bluetooth is not
+     * the current CallEndpoint but the CallAudioState shows the bluetooth device is
+     * active/available.
+     */
+    @Test
+    public void testSwitchFromEarpieceToBluetooth() {
+        // simulate an audio state where the EARPIECE is active but a bluetooth device is active.
+        mCallEndpointController.onCallAudioStateChanged(null, audioState8 /* Ear but BT active */);
+        CallEndpoint btEndpoint = mCallEndpointController.getAvailableEndpoints().stream()
+                .filter(e -> e.getEndpointType() == CallEndpoint.TYPE_BLUETOOTH)
+                .toList().get(0); // get the only available BT endpoint
+
+        // verify the CallEndpointController shows EARPIECE active + BT endpoint is active device
+        assertEquals(CallEndpoint.TYPE_EARPIECE,
+                mCallEndpointController.getCurrentCallEndpoint().getEndpointType());
+        assertNotNull(btEndpoint);
+
+        // request an endpoint change from earpiece to the bluetooth
+        doReturn(audioState8).when(mCallAudioManager).getCallAudioState();
+        mCallEndpointController.requestCallEndpointChange(btEndpoint, mResultReceiver);
+
+        // verify the transaction was successful and CallAudioManager#setAudioRoute was called
+        verify(mResultReceiver, never()).send(eq(CallEndpoint.ENDPOINT_OPERATION_FAILED), any());
+        verify(mCallAudioManager, times(1)).setAudioRoute(eq(CallAudioState.ROUTE_BLUETOOTH),
+                eq(bluetoothDevice1.getAddress()));
+    }
+
+
+    /**
+     * Ensure that {@link CallAudioManager#setAudioRoute(int, String)} is invoked when the user
+     * requests to switch to from one bluetooth device to another.
+     */
+    @Test
+    public void testBtDeviceSwitch() {
+        // bluetoothDevice1 should start as active and bluetoothDevice2 is available
+        mCallEndpointController.onCallAudioStateChanged(null, audioState2 /* BT active D1 */);
+        CallEndpoint currentEndpoint = mCallEndpointController.getCurrentCallEndpoint();
+        List<CallEndpoint> btEndpoints = mCallEndpointController.getAvailableEndpoints().stream()
+                .filter(e -> e.getEndpointType() == CallEndpoint.TYPE_BLUETOOTH)
+                .toList(); // get the only available BT endpoint
+
+        // verify the initial state of the test
+        assertEquals(2, btEndpoints.size());
+        assertEquals(CallEndpoint.TYPE_BLUETOOTH, currentEndpoint.getEndpointType());
+
+        CallEndpoint otherBluetoothEndpoint = null;
+        for (CallEndpoint e : btEndpoints) {
+            if (!e.equals(currentEndpoint)) {
+                otherBluetoothEndpoint = e;
+            }
+        }
+
+        assertNotNull(otherBluetoothEndpoint);
+        assertNotEquals(currentEndpoint, otherBluetoothEndpoint);
+
+        // request an endpoint change from BT D1 --> BT D2
+        doReturn(audioState2).when(mCallAudioManager).getCallAudioState();
+        mCallEndpointController.requestCallEndpointChange(otherBluetoothEndpoint, mResultReceiver);
+
+        // verify the transaction was successful and CallAudioManager#setAudioRoute was called
+        verify(mResultReceiver, never()).send(eq(CallEndpoint.ENDPOINT_OPERATION_FAILED), any());
+        verify(mCallAudioManager, times(1))
+                .setAudioRoute(eq(CallAudioState.ROUTE_BLUETOOTH),
+                        eq(bluetoothDevice2.getAddress()));
+    }
+
     @Test
     public void testAvailableEndpointChanged() throws Exception {
         mCallEndpointController.onCallAudioStateChanged(audioState1, audioState6);
diff --git a/tests/src/com/android/server/telecom/tests/CallExtrasTest.java b/tests/src/com/android/server/telecom/tests/CallExtrasTest.java
index cf44cfe..be8e6fb 100644
--- a/tests/src/com/android/server/telecom/tests/CallExtrasTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallExtrasTest.java
@@ -27,10 +27,10 @@
 import android.telecom.Connection;
 import android.telecom.InCallService;
 import android.telecom.ParcelableCall;
-import android.test.suitebuilder.annotation.LargeTest;
-import android.test.suitebuilder.annotation.MediumTest;
 
 import androidx.test.filters.FlakyTest;
+import androidx.test.filters.LargeTest;
+import androidx.test.filters.MediumTest;
 
 import org.junit.After;
 import org.junit.Before;
diff --git a/tests/src/com/android/server/telecom/tests/CallLogManagerTest.java b/tests/src/com/android/server/telecom/tests/CallLogManagerTest.java
index 9466220..fa35f25 100644
--- a/tests/src/com/android/server/telecom/tests/CallLogManagerTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallLogManagerTest.java
@@ -16,6 +16,8 @@
 
 package com.android.server.telecom.tests;
 
+import static com.android.server.telecom.tests.TelecomSystemTest.TEST_TIMEOUT;
+
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertNotNull;
@@ -36,6 +38,7 @@
 import android.content.ContentResolver;
 import android.content.ContentValues;
 import android.content.Context;
+import android.content.pm.PackageManager;
 import android.content.pm.UserInfo;
 import android.content.res.Resources;
 import android.location.Country;
@@ -44,6 +47,7 @@
 import android.location.Location;
 import android.net.Uri;
 import android.os.Bundle;
+import android.os.Handler;
 import android.os.Looper;
 import android.os.PersistableBundle;
 import android.os.SystemClock;
@@ -59,12 +63,13 @@
 import android.telecom.VideoProfile;
 import android.telephony.CarrierConfigManager;
 import android.telephony.PhoneNumberUtils;
-import android.test.suitebuilder.annotation.MediumTest;
-import android.test.suitebuilder.annotation.SmallTest;
 
 import androidx.test.filters.FlakyTest;
+import androidx.test.filters.MediumTest;
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.Analytics;
+import com.android.server.telecom.AnomalyReporterAdapter;
 import com.android.server.telecom.Call;
 import com.android.server.telecom.CallLogManager;
 import com.android.server.telecom.CallState;
@@ -72,6 +77,7 @@
 import com.android.server.telecom.MissedCallNotifier;
 import com.android.server.telecom.PhoneAccountRegistrar;
 import com.android.server.telecom.TelephonyUtil;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import org.junit.After;
 import org.junit.Before;
@@ -85,6 +91,9 @@
 import org.mockito.stubbing.Answer;
 
 import java.util.Arrays;
+import java.util.Locale;
+import java.util.concurrent.Executor;
+import java.util.function.Consumer;
 
 @RunWith(JUnit4.class)
 public class CallLogManagerTest extends TelecomTestCase {
@@ -123,6 +132,11 @@
     PhoneAccountRegistrar mMockPhoneAccountRegistrar;
     @Mock
     MissedCallNotifier mMissedCallNotifier;
+    @Mock
+    AnomalyReporterAdapter mAnomalyReporterAdapter;
+
+    @Mock
+    FeatureFlags mFeatureFlags;
 
     @Override
     @Before
@@ -130,7 +144,7 @@
         super.setUp();
         mContext = mComponentContextFixture.getTestDouble().getApplicationContext();
         mCallLogManager = new CallLogManager(mContext, mMockPhoneAccountRegistrar,
-                mMissedCallNotifier);
+                mMissedCallNotifier, mAnomalyReporterAdapter, mFeatureFlags);
         mDefaultAccountHandle = new PhoneAccountHandle(
                 new ComponentName("com.android.server.telecom.tests", "CallLogManagerTest"),
                 TEST_PHONE_ACCOUNT_ID,
@@ -181,6 +195,9 @@
         when(userManager.getUserInfo(eq(CURRENT_USER_ID))).thenReturn(userInfo);
         when(userManager.getUserInfo(eq(OTHER_USER_ID))).thenReturn(otherUserInfo);
         when(userManager.getUserInfo(eq(MANAGED_USER_ID))).thenReturn(managedProfileUserInfo);
+        PackageManager packageManager = mContext.getPackageManager();
+        when(packageManager.hasSystemFeature(PackageManager.FEATURE_WATCH)).thenReturn(false);
+        when(mFeatureFlags.telecomLogExternalWearableCalls()).thenReturn(false);
     }
 
     @Override
@@ -357,6 +374,7 @@
                 VIA_NUMBER_STRING, // viaNumber
                 null
         );
+        when(mFeatureFlags.addCallUriForMissedCalls()).thenReturn(true);
         mCallLogManager.onCallStateChanged(fakeIncomingCall, CallState.ACTIVE,
                 CallState.DISCONNECTED);
         ContentValues insertedValues = verifyInsertionWithCapture(CURRENT_USER_ID);
@@ -366,7 +384,7 @@
 
     @MediumTest
     @Test
-    public void testLogCallDirectionMissed() {
+    public void testLogCallDirectionMissedAddCallUriForMissedCallsFlagOff() {
         when(mMockPhoneAccountRegistrar.getPhoneAccountUnchecked(any(PhoneAccountHandle.class)))
                 .thenReturn(makeFakePhoneAccount(mDefaultAccountHandle, CURRENT_USER_ID));
         Call fakeMissedCall = makeFakeCall(
@@ -382,6 +400,7 @@
                 VIA_NUMBER_STRING, // viaNumber
                 null
         );
+        when(mFeatureFlags.addCallUriForMissedCalls()).thenReturn(false);
 
         mCallLogManager.onCallStateChanged(fakeMissedCall, CallState.ACTIVE,
                 CallState.DISCONNECTED);
@@ -390,7 +409,39 @@
                 Integer.valueOf(CallLog.Calls.MISSED_TYPE));
         // Timeout needed because showMissedCallNotification is called from onPostExecute.
         verify(mMissedCallNotifier, timeout(TEST_TIMEOUT_MILLIS))
-                .showMissedCallNotification(any(MissedCallNotifier.CallInfo.class));
+                .showMissedCallNotification(any(MissedCallNotifier.CallInfo.class),
+                        /* uri= */ eq(null));
+    }
+
+    @MediumTest
+    @Test
+    public void testLogCallDirectionMissedAddCallUriForMissedCallsFlagOn() {
+        when(mMockPhoneAccountRegistrar.getPhoneAccountUnchecked(any(PhoneAccountHandle.class)))
+                .thenReturn(makeFakePhoneAccount(mDefaultAccountHandle, CURRENT_USER_ID));
+        Call fakeMissedCall = makeFakeCall(
+                DisconnectCause.MISSED, // disconnectCauseCode
+                false, // isConference
+                true, // isIncoming
+                1L, // creationTimeMillis
+                1000L, // ageMillis
+                TEL_PHONEHANDLE, // callHandle
+                mDefaultAccountHandle, // phoneAccountHandle
+                NO_VIDEO_STATE, // callVideoState
+                POST_DIAL_STRING, // postDialDigits
+                VIA_NUMBER_STRING, // viaNumber
+                null
+        );
+        when(mFeatureFlags.addCallUriForMissedCalls()).thenReturn(true);
+
+        mCallLogManager.onCallStateChanged(fakeMissedCall, CallState.ACTIVE,
+                CallState.DISCONNECTED);
+        ContentValues insertedValues = verifyInsertionWithCapture(CURRENT_USER_ID);
+        assertEquals(insertedValues.getAsInteger(CallLog.Calls.TYPE),
+                Integer.valueOf(CallLog.Calls.MISSED_TYPE));
+        // Timeout needed because showMissedCallNotification is called from onPostExecute.
+        verify(mMissedCallNotifier, timeout(TEST_TIMEOUT_MILLIS))
+                .showMissedCallNotification(any(MissedCallNotifier.CallInfo.class),
+                        /* uri= */ any(Uri.class));
     }
 
     @MediumTest
@@ -788,19 +839,34 @@
         assertEquals(1, insertedValues.getAsInteger(Calls.IS_READ).intValue());
     }
 
-    @SmallTest
     @Test
-    public void testCountryIso_setCache() {
-        Country testCountry = new Country(TEST_ISO, Country.COUNTRY_SOURCE_LOCALE);
-        CountryDetector mockDetector = (CountryDetector) mContext.getSystemService(
-                Context.COUNTRY_DETECTOR);
-        when(mockDetector.detectCountry()).thenReturn(testCountry);
+    public void testLogCallWhenExternalCallOnWatch() {
+        when(mMockPhoneAccountRegistrar.getPhoneAccountUnchecked(any(PhoneAccountHandle.class)))
+                .thenReturn(makeFakePhoneAccount(mDefaultAccountHandle, CURRENT_USER_ID));
+        PackageManager packageManager = mContext.getPackageManager();
+        when(packageManager.hasSystemFeature(PackageManager.FEATURE_WATCH)).thenReturn(true);
+        when(mFeatureFlags.telecomLogExternalWearableCalls()).thenReturn(true);
+        Call fakeMissedCall = makeFakeCall(
+                DisconnectCause.REJECTED, // disconnectCauseCode
+                false, // isConference
+                true, // isIncoming
+                1L, // creationTimeMillis
+                1000L, // ageMillis
+                TEL_PHONEHANDLE, // callHandle
+                mDefaultAccountHandle, // phoneAccountHandle
+                NO_VIDEO_STATE, // callVideoState
+                POST_DIAL_STRING, // postDialDigits
+                VIA_NUMBER_STRING, // viaNumber
+                null
+        );
+        when(fakeMissedCall.isExternalCall()).thenReturn(true);
 
-        String resultIso = mCallLogManager.getCountryIso();
-
-        verifyCountryIso(mockDetector, resultIso);
+        mCallLogManager.onCallStateChanged(fakeMissedCall, CallState.ACTIVE,
+                CallState.DISCONNECTED);
+        verifyInsertionWithCapture(CURRENT_USER_ID);
     }
 
+
     @SmallTest
     @Test
     public void testCountryIso_newCountryDetected() {
@@ -808,17 +874,28 @@
         Country testCountry2 = new Country(TEST_ISO_2, Country.COUNTRY_SOURCE_LOCALE);
         CountryDetector mockDetector = (CountryDetector) mContext.getSystemService(
                 Context.COUNTRY_DETECTOR);
-        when(mockDetector.detectCountry()).thenReturn(testCountry);
-        // Put TEST_ISO in the Cache
+        Handler handler = new Handler(Looper.getMainLooper());
+
+        String initialIso = mCallLogManager.getCountryIso();
+        assertEquals(Locale.getDefault().getCountry(), initialIso);
+
+        ArgumentCaptor<Consumer<Country>> capture = ArgumentCaptor.forClass(Consumer.class);
+        verify(mockDetector).registerCountryDetectorCallback(
+                any(Executor.class), capture.capture());
+        Consumer<Country> countryConsumer = capture.getValue();
+
+        countryConsumer.accept(testCountry);
+        waitForHandlerAction(handler, TEST_TIMEOUT);
         String resultIso = mCallLogManager.getCountryIso();
-        ArgumentCaptor<CountryListener> captor = verifyCountryIso(mockDetector, resultIso);
+        assertEquals(TEST_ISO, resultIso);
 
-        // Change ISO to TEST_ISO_2
-        CountryListener listener = captor.getValue();
-        listener.onCountryDetected(testCountry2);
-
-        String resultIso2 = mCallLogManager.getCountryIso();
-        assertEquals(TEST_ISO_2, resultIso2);
+        // If default locale is equal to TEST_ISO, test another ISO to assure working functionality.
+        if (initialIso.equals(TEST_ISO)) {
+            countryConsumer.accept(testCountry2);
+            waitForHandlerAction(handler, TEST_TIMEOUT);
+            resultIso = mCallLogManager.getCountryIso();
+            assertEquals(TEST_ISO_2, resultIso);
+        }
     }
 
     @SmallTest
@@ -893,6 +970,56 @@
 
     @SmallTest
     @Test
+    public void testDoNotLogCallExtra() {
+        when(mFeatureFlags.telecomSkipLogBasedOnExtra()).thenReturn(true);
+        Call fakeCall = makeFakeCall(
+                DisconnectCause.LOCAL, // disconnectCauseCode
+                false, // isConference
+                true, // isIncoming
+                1L, // creationTimeMillis
+                1000L, // ageMillis
+                TEL_PHONEHANDLE, // callHandle
+                mDefaultAccountHandle, // phoneAccountHandle
+                NO_VIDEO_STATE, // callVideoState
+                POST_DIAL_STRING, // postDialDigits
+                VIA_NUMBER_STRING, // viaNumber
+                UserHandle.of(CURRENT_USER_ID)
+        );
+        Bundle extras = new Bundle();
+        extras.putBoolean(TelecomManager.EXTRA_DO_NOT_LOG_CALL, true);
+        when(fakeCall.getExtras()).thenReturn(extras);
+
+        assertFalse(mCallLogManager.shouldLogDisconnectedCall(fakeCall, CallState.DISCONNECTED,
+                false /* isCanceled */));
+    }
+
+    @SmallTest
+    @Test
+    public void testIgnoresDoNotLogCallExtra_whenFlagDisabled() {
+        when(mFeatureFlags.telecomSkipLogBasedOnExtra()).thenReturn(false);
+        Call fakeCall = makeFakeCall(
+                DisconnectCause.LOCAL, // disconnectCauseCode
+                false, // isConference
+                true, // isIncoming
+                1L, // creationTimeMillis
+                1000L, // ageMillis
+                TEL_PHONEHANDLE, // callHandle
+                mDefaultAccountHandle, // phoneAccountHandle
+                NO_VIDEO_STATE, // callVideoState
+                POST_DIAL_STRING, // postDialDigits
+                VIA_NUMBER_STRING, // viaNumber
+                UserHandle.of(CURRENT_USER_ID)
+        );
+        Bundle extras = new Bundle();
+        extras.putBoolean(TelecomManager.EXTRA_DO_NOT_LOG_CALL, true);
+        when(fakeCall.getExtras()).thenReturn(extras);
+
+        assertTrue(mCallLogManager.shouldLogDisconnectedCall(fakeCall, CallState.DISCONNECTED,
+                false /* isCanceled */));
+    }
+
+    @SmallTest
+    @Test
     public void testDoNotLogConferenceWithChildren() {
         Call fakeCall = makeFakeCall(
                 DisconnectCause.LOCAL, // disconnectCauseCode
diff --git a/tests/src/com/android/server/telecom/tests/CallRecordingTonePlayerTest.java b/tests/src/com/android/server/telecom/tests/CallRecordingTonePlayerTest.java
index b5c6468..60952d3 100644
--- a/tests/src/com/android/server/telecom/tests/CallRecordingTonePlayerTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallRecordingTonePlayerTest.java
@@ -28,7 +28,6 @@
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.reset;
-import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
@@ -41,11 +40,11 @@
 import android.media.AudioRecordingConfiguration;
 import android.media.MediaPlayer;
 import android.media.MediaRecorder;
-import android.net.Uri;
 import android.os.Handler;
 import android.os.Looper;
 import android.telecom.PhoneAccountHandle;
-import android.test.suitebuilder.annotation.MediumTest;
+
+import androidx.test.filters.MediumTest;
 
 import com.android.dx.mockito.inline.extended.ExtendedMockito;
 import com.android.server.telecom.Call;
diff --git a/tests/src/com/android/server/telecom/tests/CallRedirectionProcessorTest.java b/tests/src/com/android/server/telecom/tests/CallRedirectionProcessorTest.java
index 01446d1..8210686 100644
--- a/tests/src/com/android/server/telecom/tests/CallRedirectionProcessorTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallRedirectionProcessorTest.java
@@ -55,10 +55,10 @@
 
 import static org.mockito.ArgumentMatchers.anyBoolean;
 import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.anyInt;
-import static org.mockito.Matchers.anyString;
-import static org.mockito.Matchers.eq;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.times;
diff --git a/tests/src/com/android/server/telecom/tests/CallScreeningServiceFilterTest.java b/tests/src/com/android/server/telecom/tests/CallScreeningServiceFilterTest.java
index 4d8d497..d1427db 100644
--- a/tests/src/com/android/server/telecom/tests/CallScreeningServiceFilterTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallScreeningServiceFilterTest.java
@@ -43,7 +43,8 @@
 import android.telecom.ParcelableCall;
 import android.telecom.PhoneAccountHandle;
 import android.telecom.TelecomManager;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.internal.telecom.ICallScreeningAdapter;
 import com.android.internal.telecom.ICallScreeningService;
diff --git a/tests/src/com/android/server/telecom/tests/CallTest.java b/tests/src/com/android/server/telecom/tests/CallTest.java
index 997e7dd..e06938d 100644
--- a/tests/src/com/android/server/telecom/tests/CallTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallTest.java
@@ -21,7 +21,6 @@
 import static org.junit.Assert.assertNotNull;
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.argThat;
@@ -34,10 +33,12 @@
 
 import android.content.ComponentName;
 import android.content.Intent;
+import android.content.pm.PackageManager;
 import android.graphics.Bitmap;
 import android.graphics.drawable.ColorDrawable;
 import android.net.Uri;
 import android.os.Bundle;
+import android.os.UserHandle;
 import android.telecom.CallAttributes;
 import android.telecom.CallerInfo;
 import android.telecom.Connection;
@@ -50,10 +51,10 @@
 import android.telecom.TelecomManager;
 import android.telecom.VideoProfile;
 import android.telephony.CallQuality;
-import android.test.suitebuilder.annotation.SmallTest;
 import android.widget.Toast;
 
 import androidx.test.ext.junit.runners.AndroidJUnit4;
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.Call;
 import com.android.server.telecom.CallIdMapper;
@@ -117,6 +118,7 @@
         doReturn(new ComponentName(mContext, CallTest.class))
                 .when(mMockConnectionService).getComponentName();
         doReturn(mMockToast).when(mMockToastProxy).makeText(any(), anyInt(), anyInt());
+        doReturn(UserHandle.CURRENT).when(mMockCallsManager).getCurrentUserHandle();
     }
 
     @After
@@ -200,7 +202,8 @@
                 false /* shouldAttachToExistingConnection*/,
                 false /* isConference */,
                 mMockClockProxy,
-                mMockToastProxy);
+                mMockToastProxy,
+                mFeatureFlags);
 
         // To start with connection creation isn't complete.
         assertFalse(call.isCreateConnectionComplete());
@@ -338,7 +341,8 @@
                 false /* shouldAttachToExistingConnection*/,
                 true /* isConference */,
                 mMockClockProxy,
-                mMockToastProxy);
+                mMockToastProxy,
+                mFeatureFlags);
 
         assertFalse(call.wasDndCheckComputedForCall());
         assertFalse(call.isCallSuppressedByDoNotDisturb());
@@ -364,7 +368,8 @@
                 false /* shouldAttachToExistingConnection*/,
                 true /* isConference */,
                 mMockClockProxy,
-                mMockToastProxy);
+                mMockToastProxy,
+                mFeatureFlags);
 
         assertNull(call.getConnectionServiceWrapper());
         assertFalse(call.isTransactionalCall());
@@ -394,7 +399,8 @@
                 false /* shouldAttachToExistingConnection*/,
                 true /* isConference */,
                 mMockClockProxy,
-                mMockToastProxy);
+                mMockToastProxy,
+                mFeatureFlags);
 
         // setup
         call.setIsTransactionalCall(true);
@@ -728,6 +734,52 @@
                 }));
     }
 
+    @Test
+    @SmallTest
+    public void testExcludesInCallServiceFromDoNotLogCallExtra() {
+        Call call = createCall("any");
+        Bundle extra = new Bundle();
+        extra.putBoolean(TelecomManager.EXTRA_DO_NOT_LOG_CALL, true);
+
+        call.putInCallServiceExtras(extra, "packageName");
+
+        assertFalse(call.getExtras().containsKey(TelecomManager.EXTRA_DO_NOT_LOG_CALL));
+    }
+
+    @Test
+    @SmallTest
+    public void testExcludesConnectionServiceWithoutModifyStatePermissionFromDoNotLogCallExtra() {
+        PackageManager packageManager = mContext.getPackageManager();
+        Bundle extra = new Bundle();
+        extra.putBoolean(TelecomManager.EXTRA_DO_NOT_LOG_CALL, true);
+        String packageName = SIM_1_HANDLE.getComponentName().getPackageName();
+        doReturn(PackageManager.PERMISSION_DENIED)
+                .when(packageManager)
+                .checkPermission(android.Manifest.permission.MODIFY_PHONE_STATE, packageName);
+        Call call = createCall("any");
+
+        call.putConnectionServiceExtras(extra);
+
+        assertFalse(call.getExtras().containsKey(TelecomManager.EXTRA_DO_NOT_LOG_CALL));
+    }
+
+    @Test
+    @SmallTest
+    public void testDoesNotExcludeConnectionServiceWithModifyStatePermissionFromDoNotLogCallExtra() {
+        String packageName = SIM_1_HANDLE.getComponentName().getPackageName();
+        Bundle extra = new Bundle();
+        extra.putBoolean(TelecomManager.EXTRA_DO_NOT_LOG_CALL, true);
+        PackageManager packageManager = mContext.getPackageManager();
+        doReturn(PackageManager.PERMISSION_GRANTED)
+                .when(packageManager)
+                .checkPermission(android.Manifest.permission.MODIFY_PHONE_STATE, packageName);
+        Call call = createCall("any");
+
+        call.putConnectionServiceExtras(extra);
+
+        assertTrue(call.getExtras().containsKey(TelecomManager.EXTRA_DO_NOT_LOG_CALL));
+    }
+
     private Call createCall(String id) {
         return createCall(id, Call.CALL_DIRECTION_UNDEFINED);
     }
@@ -748,6 +800,7 @@
                 false,
                 false,
                 mMockClockProxy,
-                mMockToastProxy);
+                mMockToastProxy,
+                mFeatureFlags);
     }
 }
diff --git a/tests/src/com/android/server/telecom/tests/CallerInfoLookupHelperTest.java b/tests/src/com/android/server/telecom/tests/CallerInfoLookupHelperTest.java
index 7c001c0..614ef71 100644
--- a/tests/src/com/android/server/telecom/tests/CallerInfoLookupHelperTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallerInfoLookupHelperTest.java
@@ -17,11 +17,11 @@
 package com.android.server.telecom.tests;
 
 import static org.junit.Assert.assertEquals;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.anyInt;
-import static org.mockito.Matchers.anyString;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Matchers.isNull;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.ArgumentMatchers.isNull;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
@@ -32,13 +32,13 @@
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
-import android.telecom.Logging.Session;
-import android.test.suitebuilder.annotation.SmallTest;
-
-import androidx.test.InstrumentationRegistry;
-
 import android.telecom.CallerInfo;
 import android.telecom.CallerInfoAsyncQuery;
+import android.telecom.Logging.Session;
+
+import androidx.test.InstrumentationRegistry;
+import androidx.test.filters.SmallTest;
+
 import com.android.server.telecom.CallerInfoAsyncQueryFactory;
 import com.android.server.telecom.CallerInfoLookupHelper;
 import com.android.server.telecom.ContactsAsyncHelper;
diff --git a/tests/src/com/android/server/telecom/tests/CallsManagerTest.java b/tests/src/com/android/server/telecom/tests/CallsManagerTest.java
index 9f46336..be00125 100644
--- a/tests/src/com/android/server/telecom/tests/CallsManagerTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallsManagerTest.java
@@ -44,6 +44,8 @@
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
+import static java.lang.Thread.sleep;
+
 import android.Manifest;
 import android.content.ComponentName;
 import android.content.ContentResolver;
@@ -75,15 +77,18 @@
 import android.telephony.CarrierConfigManager;
 import android.telephony.PhoneCapability;
 import android.telephony.TelephonyManager;
-import android.test.suitebuilder.annotation.MediumTest;
-import android.test.suitebuilder.annotation.SmallTest;
 import android.util.Pair;
 import android.widget.Toast;
 
+import androidx.test.filters.MediumTest;
+import androidx.test.filters.SmallTest;
+
+import com.android.internal.telecom.IConnectionService;
 import com.android.server.telecom.AnomalyReporterAdapter;
 import com.android.server.telecom.AsyncRingtonePlayer;
 import com.android.server.telecom.Call;
 import com.android.server.telecom.CallAnomalyWatchdog;
+import com.android.server.telecom.CallAudioCommunicationDeviceTracker;
 import com.android.server.telecom.CallAudioManager;
 import com.android.server.telecom.CallAudioModeStateMachine;
 import com.android.server.telecom.CallAudioRouteStateMachine;
@@ -123,6 +128,8 @@
 import com.android.server.telecom.bluetooth.BluetoothStateReceiver;
 import com.android.server.telecom.callfiltering.BlockedNumbersAdapter;
 import com.android.server.telecom.callfiltering.CallFilteringResult;
+import com.android.server.telecom.flags.FeatureFlags;
+import com.android.server.telecom.callfiltering.IncomingCallFilterGraph;
 import com.android.server.telecom.ui.AudioProcessingNotification;
 import com.android.server.telecom.ui.CallStreamingNotification;
 import com.android.server.telecom.ui.DisconnectedCallNotifier;
@@ -135,7 +142,7 @@
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
 import org.mockito.ArgumentCaptor;
-import org.mockito.Matchers;
+import org.mockito.ArgumentMatchers;
 import org.mockito.Mock;
 import org.mockito.Mockito;
 import org.mockito.MockitoAnnotations;
@@ -276,8 +283,10 @@
     @Mock private Ringer.AccessibilityManagerAdapter mAccessibilityManagerAdapter;
     @Mock private BlockedNumbersAdapter mBlockedNumbersAdapter;
     @Mock private PhoneCapability mPhoneCapability;
+    @Mock private CallAudioCommunicationDeviceTracker mCommunicationDeviceTracker;
     @Mock private CallStreamingNotification mCallStreamingNotification;
-
+    @Mock private FeatureFlags mFeatureFlags;
+    @Mock private IncomingCallFilterGraph mIncomingCallFilterGraph;
     private CallsManager mCallsManager;
 
     @Override
@@ -296,8 +305,8 @@
         when(mCallEndpointControllerFactory.create(any(), any(), any())).thenReturn(
                 mCallEndpointController);
         when(mCallAudioRouteStateMachineFactory.create(any(), any(), any(), any(), any(), any(),
-                anyInt(), any())).thenReturn(mCallAudioRouteStateMachine);
-        when(mCallAudioModeStateMachineFactory.create(any(), any()))
+                anyInt(), any(), any(), any())).thenReturn(mCallAudioRouteStateMachine);
+        when(mCallAudioModeStateMachineFactory.create(any(), any(), any(), any()))
                 .thenReturn(mCallAudioModeStateMachine);
         when(mClockProxy.currentTimeMillis()).thenReturn(System.currentTimeMillis());
         when(mClockProxy.elapsedRealtime()).thenReturn(SystemClock.elapsedRealtime());
@@ -345,10 +354,15 @@
                 mAccessibilityManagerAdapter,
                 // Just do async tasks synchronously to support testing.
                 command -> command.run(),
+                // For call audio tasks
+                command -> command.run(),
                 mBlockedNumbersAdapter,
                 TransactionManager.getTestInstance(),
                 mEmergencyCallDiagnosticLogger,
-                mCallStreamingNotification);
+                mCommunicationDeviceTracker,
+                mCallStreamingNotification,
+                mFeatureFlags,
+                (call, listener, context, timeoutsAdapter, lock) -> mIncomingCallFilterGraph);
 
         when(mPhoneAccountRegistrar.getPhoneAccount(
                 eq(SELF_MANAGED_HANDLE), any())).thenReturn(SELF_MANAGED_ACCOUNT);
@@ -391,7 +405,8 @@
                 false /* shouldAttachToExistingConnection*/,
                 false /* isConference */,
                 mClockProxy,
-                mToastFactory);
+                mToastFactory,
+                mFeatureFlags);
         ongoingCall.setState(CallState.ACTIVE, "just cuz");
         return ongoingCall;
     }
@@ -1318,8 +1333,9 @@
 
     @SmallTest
     @Test
-    public void testNoFilteringOfCallsWhenPhoneAccountRequestsSkipped() {
+    public void testDndFilterAppliesOfCallsWhenPhoneAccountRequestsSkipped() {
         // GIVEN an incoming call which is from a PhoneAccount that requested to skip filtering.
+        when(mFeatureFlags.skipFilterPhoneAccountPerformDndFilter()).thenReturn(true);
         Call incomingCall = addSpyCall(SIM_1_HANDLE, CallState.NEW);
         Bundle extras = new Bundle();
         extras.putBoolean(PhoneAccount.EXTRA_SKIP_CALL_FILTERING, true);
@@ -1339,7 +1355,35 @@
         // WHEN the incoming call is successfully added.
         mCallsManager.onSuccessfulIncomingCall(incomingCall);
 
-        // THEN the incoming call is not using call filtering
+        // THEN the incoming call is still applying Dnd filter.
+        verify(incomingCall).setIsUsingCallFiltering(eq(true));
+    }
+
+    @SmallTest
+    @Test
+    public void testNoFilterAppliesOfCallsWhenFlagNotEnabled() {
+        // Flag is not enabled.
+        when(mFeatureFlags.skipFilterPhoneAccountPerformDndFilter()).thenReturn(false);
+        Call incomingCall = addSpyCall(SIM_1_HANDLE, CallState.NEW);
+        Bundle extras = new Bundle();
+        extras.putBoolean(PhoneAccount.EXTRA_SKIP_CALL_FILTERING, true);
+        PhoneAccount skipRequestedAccount = new PhoneAccount.Builder(SIM_2_HANDLE, "Skipper")
+                .setCapabilities(PhoneAccount.CAPABILITY_SIM_SUBSCRIPTION
+                        | PhoneAccount.CAPABILITY_CALL_PROVIDER)
+                .setExtras(extras)
+                .setIsEnabled(true)
+                .build();
+        when(mPhoneAccountRegistrar.getPhoneAccountUnchecked(SIM_1_HANDLE))
+                .thenReturn(skipRequestedAccount);
+        doReturn(false).when(incomingCall).can(Connection.CAPABILITY_HOLD);
+        doReturn(false).when(incomingCall).can(Connection.CAPABILITY_SUPPORT_HOLD);
+        doReturn(false).when(incomingCall).isSelfManaged();
+        doReturn(true).when(incomingCall).setState(anyInt(), any());
+
+        // WHEN the incoming call is successfully added.
+        mCallsManager.onSuccessfulIncomingCall(incomingCall);
+
+        // THEN the incoming call is not applying filter.
         verify(incomingCall).setIsUsingCallFiltering(eq(false));
     }
 
@@ -2396,7 +2440,7 @@
 
         mCallsManager.onCallFilteringComplete(callSpy, result, false /* timeout */);
         verify(mMissedCallNotifier).showMissedCallNotification(
-                any(MissedCallNotifier.CallInfo.class));
+                any(MissedCallNotifier.CallInfo.class), /* uri= */ eq(null));
     }
 
     @Test
@@ -2500,6 +2544,32 @@
         assertEquals(DEFAULT_CALL_SCREENING_APP, outgoingCall.getPostCallPackageName());
     }
 
+    /**
+     * Verify the only call state set from calling onSuccessfulOutgoingCall is CallState.DIALING.
+     */
+    @SmallTest
+    @Test
+    public void testOutgoingCallStateIsSetToAPreviousStateAndIgnored() {
+        when(mFeatureFlags.fixAudioFlickerForOutgoingCalls()).thenReturn(true);
+        Call outgoingCall = addSpyCall(CallState.CONNECTING);
+        mCallsManager.onSuccessfulOutgoingCall(outgoingCall, CallState.NEW);
+        verify(outgoingCall, never()).setState(eq(CallState.NEW), any());
+        verify(outgoingCall, times(1)).setState(eq(CallState.DIALING), any());
+    }
+
+    /**
+     * Verify a ConnectionService can start the call in the active state and avoid the dialing state
+     */
+    @SmallTest
+    @Test
+    public void testOutgoingCallStateCanAvoidDialingAndGoStraightToActive() {
+        when(mFeatureFlags.fixAudioFlickerForOutgoingCalls()).thenReturn(true);
+        Call outgoingCall = addSpyCall(CallState.CONNECTING);
+        mCallsManager.onSuccessfulOutgoingCall(outgoingCall, CallState.ACTIVE);
+        verify(outgoingCall, never()).setState(eq(CallState.DIALING), any());
+        verify(outgoingCall, times(1)).setState(eq(CallState.ACTIVE), any());
+    }
+
     @SmallTest
     @Test
     public void testRejectIncomingCallOnPAHInactive_SecondaryUser() throws Exception {
@@ -2509,9 +2579,7 @@
                 WORK_HANDLE.getUserHandle(), service);
 
         UserManager um = mContext.getSystemService(UserManager.class);
-        UserHandle newUser = new UserHandle(11);
-        when(mCallsManager.getCurrentUserHandle()).thenReturn(newUser);
-        when(um.isUserAdmin(eq(newUser.getIdentifier()))).thenReturn(false);
+        when(um.isUserAdmin(anyInt())).thenReturn(false);
         when(um.isQuietModeEnabled(eq(WORK_HANDLE.getUserHandle()))).thenReturn(false);
         when(mPhoneAccountRegistrar.getPhoneAccountUnchecked(eq(WORK_HANDLE)))
                 .thenReturn(WORK_ACCOUNT);
@@ -2527,14 +2595,17 @@
     @Test
     public void testRejectIncomingCallOnPAHInactive_ProfilePaused() throws Exception {
         ConnectionServiceWrapper service = mock(ConnectionServiceWrapper.class);
-        doReturn(SIM_2_HANDLE.getComponentName()).when(service).getComponentName();
-        mCallsManager.addConnectionServiceRepositoryCache(SIM_2_HANDLE.getComponentName(),
-                SIM_2_HANDLE.getUserHandle(), service);
+        doReturn(WORK_HANDLE.getComponentName()).when(service).getComponentName();
+        mCallsManager.addConnectionServiceRepositoryCache(WORK_HANDLE.getComponentName(),
+                WORK_HANDLE.getUserHandle(), service);
 
         UserManager um = mContext.getSystemService(UserManager.class);
-        when(um.isQuietModeEnabled(eq(SIM_2_HANDLE.getUserHandle()))).thenReturn(true);
+        when(um.isUserAdmin(anyInt())).thenReturn(true);
+        when(um.isQuietModeEnabled(eq(WORK_HANDLE.getUserHandle()))).thenReturn(true);
+        when(mPhoneAccountRegistrar.getPhoneAccountUnchecked(eq(WORK_HANDLE)))
+                .thenReturn(WORK_ACCOUNT);
         Call newCall = mCallsManager.processIncomingCallIntent(
-                SIM_2_HANDLE, new Bundle(), false);
+                WORK_HANDLE, new Bundle(), false);
 
         verify(service, timeout(TEST_TIMEOUT)).createConnectionFailed(any());
         assertFalse(newCall.isInECBM());
@@ -2571,9 +2642,7 @@
         when(mEmergencyCallHelper.isLastOutgoingEmergencyCallPAH(eq(WORK_HANDLE)))
                 .thenReturn(true);
         UserManager um = mContext.getSystemService(UserManager.class);
-        UserHandle newUser = new UserHandle(11);
-        when(mCallsManager.getCurrentUserHandle()).thenReturn(newUser);
-        when(um.isUserAdmin(eq(newUser.getIdentifier()))).thenReturn(false);
+        when(um.isUserAdmin(anyInt())).thenReturn(false);
         when(um.isQuietModeEnabled(eq(WORK_HANDLE.getUserHandle()))).thenReturn(false);
         when(mPhoneAccountRegistrar.getPhoneAccountUnchecked(eq(WORK_HANDLE)))
                 .thenReturn(WORK_ACCOUNT);
@@ -2736,8 +2805,9 @@
     public void testQueryCurrentLocationCheckOnReceiveResult() throws Exception {
         ConnectionServiceWrapper service = new ConnectionServiceWrapper(
                 new ComponentName(mContext.getPackageName(),
-                        mContext.getPackageName().getClass().getName()),
-                null, mPhoneAccountRegistrar, mCallsManager, mContext, mLock, null);
+                        mContext.getPackageName().getClass().getName()), null,
+                        mPhoneAccountRegistrar, mCallsManager, mContext, mLock, null,
+                        mFeatureFlags);
 
         CompletableFuture<String> resultFuture = new CompletableFuture<>();
         try {
@@ -2966,11 +3036,9 @@
         mCallsManager.createActionSetCallStateAndPerformAction(
                 call, CallState.DISCONNECTED, "");
 
-        verify(sourceCall).onConnectionEvent(eq(Connection.EVENT_HANDOVER_FAILED), any());
         verify(sourceCall).onHandoverFailed(
                     android.telecom.Call.Callback.HANDOVER_FAILURE_USER_REJECTED);
 
-        verify(call).sendCallEvent(eq(android.telecom.Call.EVENT_HANDOVER_FAILED), any());
         verify(call).markFinishedHandoverStateAndCleanup(HandoverState.HANDOVER_FAILED);
     }
 
@@ -2981,12 +3049,8 @@
         Call call = addSpyCall(CONNECTION_MGR_1_HANDLE, CallState.NEW);
         when(call.getHandoverDestinationCall()).thenReturn(destinationCall);
         when(call.getHandoverState()).thenReturn(HandoverState.HANDOVER_FROM_STARTED);
-
         mCallsManager.createActionSetCallStateAndPerformAction(
                 call, CallState.DISCONNECTED, "");
-
-        verify(destinationCall).sendCallEvent(
-                eq(android.telecom.Call.EVENT_HANDOVER_SOURCE_DISCONNECTED), any());
     }
 
     @SmallTest
@@ -3000,11 +3064,8 @@
         mCallsManager.createActionSetCallStateAndPerformAction(
                 call, CallState.DISCONNECTED, "");
 
-        verify(call).onConnectionEvent(eq(Connection.EVENT_HANDOVER_COMPLETE), any());
         verify(call).onHandoverComplete();
         verify(call).markFinishedHandoverStateAndCleanup(HandoverState.HANDOVER_COMPLETE);
-        verify(destinationCall).sendCallEvent(
-                eq(android.telecom.Call.EVENT_HANDOVER_COMPLETE), any());
         verify(destinationCall).onHandoverComplete();
     }
 
@@ -3021,11 +3082,8 @@
         mCallsManager.createActionSetCallStateAndPerformAction(
                 call, CallState.DISCONNECTED, "");
 
-        verify(call).onConnectionEvent(eq(Connection.EVENT_HANDOVER_COMPLETE), any());
         verify(call).onHandoverComplete();
         verify(call).markFinishedHandoverStateAndCleanup(HandoverState.HANDOVER_COMPLETE);
-        verify(destinationCall).sendCallEvent(
-                eq(android.telecom.Call.EVENT_HANDOVER_COMPLETE), any());
         verify(destinationCall).onHandoverComplete();
         verify(otherCall).disconnect();
     }
@@ -3280,8 +3338,8 @@
         // Mocks some methods to not call the real method.
         doNothing().when(callSpy).unhold();
         doNothing().when(callSpy).hold();
-        doNothing().when(callSpy).answer(Matchers.anyInt());
-        doNothing().when(callSpy).setStartWithSpeakerphoneOn(Matchers.anyBoolean());
+        doNothing().when(callSpy).answer(ArgumentMatchers.anyInt());
+        doNothing().when(callSpy).setStartWithSpeakerphoneOn(ArgumentMatchers.anyBoolean());
 
         mCallsManager.addCall(callSpy);
         return callSpy;
@@ -3295,8 +3353,8 @@
         doNothing().when(callSpy).unhold();
         doNothing().when(callSpy).hold();
         doNothing().when(callSpy).disconnect();
-        doNothing().when(callSpy).answer(Matchers.anyInt());
-        doNothing().when(callSpy).setStartWithSpeakerphoneOn(Matchers.anyBoolean());
+        doNothing().when(callSpy).answer(ArgumentMatchers.anyInt());
+        doNothing().when(callSpy).setStartWithSpeakerphoneOn(ArgumentMatchers.anyBoolean());
 
         return callSpy;
     }
@@ -3321,7 +3379,8 @@
                 false /* shouldAttachToExistingConnection*/,
                 false /* isConference */,
                 mClockProxy,
-                mToastFactory);
+                mToastFactory,
+                mFeatureFlags);
         ongoingCall.setState(initialState, "just cuz");
         if (targetPhoneAccount == SELF_MANAGED_HANDLE
                 || targetPhoneAccount == SELF_MANAGED_2_HANDLE) {
diff --git a/tests/src/com/android/server/telecom/tests/ComponentContextFixture.java b/tests/src/com/android/server/telecom/tests/ComponentContextFixture.java
index cc22de2..54aaa4c 100644
--- a/tests/src/com/android/server/telecom/tests/ComponentContextFixture.java
+++ b/tests/src/com/android/server/telecom/tests/ComponentContextFixture.java
@@ -16,6 +16,7 @@
 
 package com.android.server.telecom.tests;
 
+import com.android.server.telecom.flags.FeatureFlags;
 import com.google.common.collect.ArrayListMultimap;
 import com.google.common.collect.Multimap;
 
@@ -27,6 +28,8 @@
 import org.mockito.stubbing.Answer;
 
 import android.Manifest;
+import android.annotation.Nullable;
+import android.annotation.RequiresPermission;
 import android.app.AppOpsManager;
 import android.app.NotificationManager;
 import android.app.StatusBarManager;
@@ -55,6 +58,7 @@
 import android.location.LocationManager;
 import android.media.AudioDeviceInfo;
 import android.media.AudioManager;
+import android.net.Uri;
 import android.os.BugreportManager;
 import android.os.Bundle;
 import android.os.DropBoxManager;
@@ -81,8 +85,10 @@
 import android.util.DisplayMetrics;
 import android.view.accessibility.AccessibilityManager;
 
+import java.io.ByteArrayInputStream;
 import java.io.File;
 import java.io.IOException;
+import java.nio.charset.StandardCharsets;
 import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashMap;
@@ -96,7 +102,7 @@
 import static org.mockito.ArgumentMatchers.anyBoolean;
 import static org.mockito.ArgumentMatchers.matches;
 import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Matchers.anyString;
+import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.any;
 import static org.mockito.Mockito.anyInt;
 import static org.mockito.Mockito.doAnswer;
@@ -284,6 +290,8 @@
                 return Context.DROPBOX_SERVICE;
             } else if (svcClass == BugreportManager.class) {
                 return Context.BUGREPORT_SERVICE;
+            } else if (svcClass == TelecomManager.class) {
+                return Context.TELECOM_SERVICE;
             }
             throw new UnsupportedOperationException(svcClass.getName());
         }
@@ -409,12 +417,23 @@
         }
 
         @Override
+        public void sendBroadcastAsUser(Intent intent, UserHandle user, String receiverPermission) {
+            // Override so that this can be verified via spy.
+        }
+
+        @Override
         public void sendBroadcastAsUser(Intent intent, UserHandle user, String receiverPermission,
                 Bundle options) {
             // Override so that this can be verified via spy.
         }
 
         @Override
+        public void sendBroadcastAsUser(Intent intent, UserHandle user, String receiverPermission,
+                int appOp) {
+            // Override so that this can be verified via spy.
+        }
+
+        @Override
         public void sendOrderedBroadcastAsUser(Intent intent, UserHandle user,
                 String receiverPermission, BroadcastReceiver resultReceiver, Handler scheduler,
                 int initialCode, String initialData, Bundle initialExtras) {
@@ -617,8 +636,9 @@
 
     private TelecomManager mTelecomManager = mock(TelecomManager.class);
 
-    public ComponentContextFixture() {
+    public ComponentContextFixture(FeatureFlags featureFlags) {
         MockitoAnnotations.initMocks(this);
+        when(featureFlags.telecomResolveHiddenDependencies()).thenReturn(true);
         when(mResources.getConfiguration()).thenReturn(mResourceConfiguration);
         when(mResources.getString(anyInt())).thenReturn("");
         when(mResources.getStringArray(anyInt())).thenReturn(new String[0]);
@@ -701,7 +721,7 @@
             }
         }).when(mAppOpsManager).checkPackage(anyInt(), anyString());
 
-        when(mNotificationManager.matchesCallFilter(any(Bundle.class))).thenReturn(true);
+        when(mNotificationManager.matchesCallFilter(any(Uri.class))).thenReturn(true);
 
         when(mCarrierConfigManager.getConfig()).thenReturn(new PersistableBundle());
         when(mCarrierConfigManager.getConfigForSubId(anyInt())).thenReturn(new PersistableBundle());
@@ -735,6 +755,14 @@
         mServiceInfoByComponentName.put(componentName, serviceInfo);
     }
 
+    public void removeConnectionService(
+            ComponentName componentName,
+            IConnectionService service)
+            throws Exception {
+        removeService(ConnectionService.SERVICE_INTERFACE, componentName, service);
+        mServiceInfoByComponentName.remove(componentName);
+    }
+
     public void addInCallService(
             ComponentName componentName,
             IInCallService service,
@@ -756,6 +784,8 @@
                 componentName.getPackageName() });
         when(mPackageManager.checkPermission(eq(Manifest.permission.CONTROL_INCALL_EXPERIENCE),
                 eq(componentName.getPackageName()))).thenReturn(PackageManager.PERMISSION_GRANTED);
+        when(mPackageManager.checkPermission(eq(Manifest.permission.INTERACT_ACROSS_USERS),
+                eq(componentName.getPackageName()))).thenReturn(PackageManager.PERMISSION_GRANTED);
         when(mPermissionCheckerManager.checkPermission(
                 eq(Manifest.permission.CONTROL_INCALL_EXPERIENCE),
                 any(AttributionSourceState.class), anyString(), anyBoolean(), anyBoolean(),
@@ -794,6 +824,11 @@
         when(mResources.getStringArray(eq(id))).thenReturn(value);
     }
 
+    public void putRawResource(int id, String content) {
+        when(mResources.openRawResource(id))
+                .thenReturn(new ByteArrayInputStream(content.getBytes(StandardCharsets.UTF_8)));
+    }
+
     public void setTelecomManager(TelecomManager telecomManager) {
         mTelecomManager = telecomManager;
     }
@@ -828,6 +863,12 @@
         mComponentNameByService.put(service, name);
     }
 
+    private void removeService(String action, ComponentName name, IInterface service) {
+        mComponentNamesByAction.remove(action, name);
+        mServiceByComponentName.remove(name);
+        mComponentNameByService.remove(service);
+    }
+
     private List<ResolveInfo> doQueryIntentServices(Intent intent, int flags) {
         List<ResolveInfo> result = new ArrayList<>();
         for (ComponentName componentName : mComponentNamesByAction.get(intent.getAction())) {
diff --git a/tests/src/com/android/server/telecom/tests/ConnectionServiceFocusManagerTest.java b/tests/src/com/android/server/telecom/tests/ConnectionServiceFocusManagerTest.java
index 0d6ceba..ab2c679 100644
--- a/tests/src/com/android/server/telecom/tests/ConnectionServiceFocusManagerTest.java
+++ b/tests/src/com/android/server/telecom/tests/ConnectionServiceFocusManagerTest.java
@@ -16,7 +16,19 @@
 
 package com.android.server.telecom.tests;
 
-import android.test.suitebuilder.annotation.SmallTest;
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.reset;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import androidx.test.filters.SmallTest;
+
 import com.android.server.telecom.Call;
 import com.android.server.telecom.CallState;
 import com.android.server.telecom.CallsManager;
@@ -32,17 +44,6 @@
 import org.mockito.Mock;
 import org.mockito.Mockito;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertTrue;
-import static org.mockito.Matchers.any;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.reset;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
 @RunWith(JUnit4.class)
 public class ConnectionServiceFocusManagerTest extends TelecomTestCase {
 
diff --git a/tests/src/com/android/server/telecom/tests/ContactsAsyncHelperTest.java b/tests/src/com/android/server/telecom/tests/ContactsAsyncHelperTest.java
index 10cac93..7adb32c 100644
--- a/tests/src/com/android/server/telecom/tests/ContactsAsyncHelperTest.java
+++ b/tests/src/com/android/server/telecom/tests/ContactsAsyncHelperTest.java
@@ -17,11 +17,11 @@
 package com.android.server.telecom.tests;
 
 import static org.junit.Assert.assertTrue;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.anyInt;
-import static org.mockito.Matchers.anyObject;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Matchers.isNull;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyObject;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.ArgumentMatchers.isNull;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.timeout;
@@ -32,11 +32,10 @@
 import android.graphics.drawable.BitmapDrawable;
 import android.graphics.drawable.Drawable;
 import android.net.Uri;
-import android.os.Handler;
 import android.os.Looper;
-import android.test.suitebuilder.annotation.SmallTest;
 
 import androidx.test.InstrumentationRegistry;
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.ContactsAsyncHelper;
 
@@ -49,7 +48,6 @@
 
 import java.io.FileNotFoundException;
 import java.io.InputStream;
-import java.util.concurrent.Executor;
 
 @RunWith(JUnit4.class)
 public class ContactsAsyncHelperTest extends TelecomTestCase {
diff --git a/tests/src/com/android/server/telecom/tests/CreateConnectionProcessorTest.java b/tests/src/com/android/server/telecom/tests/CreateConnectionProcessorTest.java
index 8a85a87..e973992 100644
--- a/tests/src/com/android/server/telecom/tests/CreateConnectionProcessorTest.java
+++ b/tests/src/com/android/server/telecom/tests/CreateConnectionProcessorTest.java
@@ -16,10 +16,21 @@
 
 package com.android.server.telecom.tests;
 
-import android.Manifest;
+import static org.junit.Assert.fail;
+import static org.mockito.ArgumentMatchers.anyBoolean;
+import static org.mockito.ArgumentMatchers.anyList;
+import static org.mockito.ArgumentMatchers.nullable;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.reset;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 import android.content.ComponentName;
 import android.content.Context;
-import android.content.pm.PackageManager;
 import android.graphics.drawable.Icon;
 import android.net.Uri;
 import android.os.Binder;
@@ -28,7 +39,8 @@
 import android.telecom.PhoneAccount;
 import android.telecom.PhoneAccountHandle;
 import android.telephony.SubscriptionManager;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.Call;
 import com.android.server.telecom.CallIdMapper;
@@ -38,13 +50,13 @@
 import com.android.server.telecom.CreateConnectionProcessor;
 import com.android.server.telecom.CreateConnectionResponse;
 import com.android.server.telecom.PhoneAccountRegistrar;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
-import org.mockito.ArgumentCaptor;
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 import org.mockito.invocation.InvocationOnMock;
@@ -56,20 +68,6 @@
 import java.util.Random;
 import java.util.UUID;
 
-import static org.junit.Assert.fail;
-import static org.mockito.ArgumentMatchers.anyBoolean;
-import static org.mockito.ArgumentMatchers.anyInt;
-import static org.mockito.ArgumentMatchers.anyList;
-import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Mockito.doAnswer;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.reset;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
 /**
  * Unit testing for CreateConnectionProcessor as well as CreateConnectionTimeout classes.
  */
@@ -123,7 +121,7 @@
 
         mTestCreateConnectionProcessor = new CreateConnectionProcessor(mMockCall,
                 mMockConnectionServiceRepository, mMockCreateConnectionResponse,
-                mMockAccountRegistrar, mContext);
+                mMockAccountRegistrar, mContext, mFeatureFlags);
 
         mAccountToSub = new HashMap<>();
         phoneAccounts = new ArrayList<>();
@@ -842,7 +840,7 @@
         ConnectionServiceWrapper wrapper = mock(ConnectionServiceWrapper.class);
         when(mMockConnectionServiceRepository.getService(
                 eq(makeQuickConnectionServiceComponentName()),
-                any(UserHandle.class))).thenReturn(wrapper);
+                any(UserHandle.class), any(FeatureFlags.class))).thenReturn(wrapper);
         return wrapper;
     }
 
diff --git a/tests/src/com/android/server/telecom/tests/DefaultDialerCacheTest.java b/tests/src/com/android/server/telecom/tests/DefaultDialerCacheTest.java
index e733465..18f2eb0 100644
--- a/tests/src/com/android/server/telecom/tests/DefaultDialerCacheTest.java
+++ b/tests/src/com/android/server/telecom/tests/DefaultDialerCacheTest.java
@@ -16,6 +16,14 @@
 
 package com.android.server.telecom.tests;
 
+import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.ArgumentMatchers.isNull;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
@@ -24,7 +32,8 @@
 import android.net.Uri;
 import android.os.Handler;
 import android.os.UserHandle;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.DefaultDialerCache;
 import com.android.server.telecom.RoleManagerAdapter;
@@ -38,14 +47,6 @@
 import org.mockito.ArgumentCaptor;
 import org.mockito.Mock;
 
-import static org.junit.Assert.assertEquals;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Matchers.isNull;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
 @RunWith(JUnit4.class)
 public class DefaultDialerCacheTest extends TelecomTestCase {
 
diff --git a/tests/src/com/android/server/telecom/tests/DirectToVoicemailFilterTest.java b/tests/src/com/android/server/telecom/tests/DirectToVoicemailFilterTest.java
index 2ab4e78..097061b 100644
--- a/tests/src/com/android/server/telecom/tests/DirectToVoicemailFilterTest.java
+++ b/tests/src/com/android/server/telecom/tests/DirectToVoicemailFilterTest.java
@@ -26,11 +26,11 @@
 import android.net.Uri;
 import android.provider.CallLog;
 import android.telecom.CallerInfo;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.Call;
 import com.android.server.telecom.CallerInfoLookupHelper;
-import com.android.server.telecom.callfiltering.CallFilter;
 import com.android.server.telecom.callfiltering.CallFilteringResult;
 import com.android.server.telecom.callfiltering.DirectToVoicemailFilter;
 
@@ -44,7 +44,6 @@
 import java.util.concurrent.CompletionStage;
 import java.util.concurrent.TimeUnit;
 
-
 @RunWith(JUnit4.class)
 public class DirectToVoicemailFilterTest extends TelecomTestCase {
     @Mock private CallerInfoLookupHelper mCallerInfoLookupHelper;
diff --git a/tests/src/com/android/server/telecom/tests/DtmfLocalTonePlayerTest.java b/tests/src/com/android/server/telecom/tests/DtmfLocalTonePlayerTest.java
index 85a5278..5ccfc38 100644
--- a/tests/src/com/android/server/telecom/tests/DtmfLocalTonePlayerTest.java
+++ b/tests/src/com/android/server/telecom/tests/DtmfLocalTonePlayerTest.java
@@ -15,8 +15,15 @@
 
 package com.android.server.telecom.tests;
 
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 import android.media.ToneGenerator;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.Call;
 import com.android.server.telecom.DtmfLocalTonePlayer;
@@ -29,12 +36,6 @@
 import org.junit.runners.JUnit4;
 import org.mockito.Mock;
 
-import static org.mockito.Matchers.anyInt;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
 @RunWith(JUnit4.class)
 public class DtmfLocalTonePlayerTest extends TelecomTestCase {
     private static final int TIMEOUT = 2000;
diff --git a/tests/src/com/android/server/telecom/tests/EmergencyCallDiagnosticLoggerTest.java b/tests/src/com/android/server/telecom/tests/EmergencyCallDiagnosticLoggerTest.java
index 3cb8196..c63a3d5 100644
--- a/tests/src/com/android/server/telecom/tests/EmergencyCallDiagnosticLoggerTest.java
+++ b/tests/src/com/android/server/telecom/tests/EmergencyCallDiagnosticLoggerTest.java
@@ -35,6 +35,7 @@
 import android.net.Uri;
 import android.os.BugreportManager;
 import android.os.DropBoxManager;
+import android.os.UserHandle;
 import android.telecom.DisconnectCause;
 import android.telecom.PhoneAccount;
 import android.telecom.PhoneAccountHandle;
@@ -128,6 +129,7 @@
         when(mTimeouts.getDaysBackToSearchEmergencyDiagnosticEntries()).
                 thenReturn(DAYS_BACK_TO_SEARCH_EMERGENCY_DIAGNOSTIC_ENTRIES);
         when(mClockProxy.currentTimeMillis()).thenReturn(System.currentTimeMillis());
+        when(mMockCallsManager.getCurrentUserHandle()).thenReturn(UserHandle.CURRENT);
 
         mEmergencyCallDiagnosticLogger = new EmergencyCallDiagnosticLogger(mTm, mBrm,
                 mTimeouts, mDbm, Runnable::run, mClockProxy);
@@ -171,7 +173,8 @@
                 false /* shouldAttachToExistingConnection*/,
                 false /* isConference */,
                 mMockClockProxy,
-                mMockToastProxy);
+                mMockToastProxy,
+                mFeatureFlags);
     }
 
     /**
diff --git a/tests/src/com/android/server/telecom/tests/EmergencyCallHelperTest.java b/tests/src/com/android/server/telecom/tests/EmergencyCallHelperTest.java
index 692d720..f2ad2f7 100644
--- a/tests/src/com/android/server/telecom/tests/EmergencyCallHelperTest.java
+++ b/tests/src/com/android/server/telecom/tests/EmergencyCallHelperTest.java
@@ -19,12 +19,24 @@
 import static android.Manifest.permission.ACCESS_BACKGROUND_LOCATION;
 import static android.Manifest.permission.ACCESS_FINE_LOCATION;
 
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.mockito.ArgumentMatchers.nullable;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.any;
+import static org.mockito.Mockito.doThrow;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 import android.content.ComponentName;
 import android.content.ContentResolver;
 import android.content.pm.PackageManager;
 import android.os.UserHandle;
 import android.telecom.PhoneAccountHandle;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.Call;
 import com.android.server.telecom.DefaultDialerCache;
@@ -39,18 +51,6 @@
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.assertFalse;
-
-import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Mockito.doThrow;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-import static org.mockito.Mockito.any;
-
 @RunWith(JUnit4.class)
 public class EmergencyCallHelperTest extends TelecomTestCase {
   private static final String SYSTEM_DIALER_PACKAGE = "abc.xyz";
diff --git a/tests/src/com/android/server/telecom/tests/EventManagerTest.java b/tests/src/com/android/server/telecom/tests/EventManagerTest.java
index c7d3541..cee0f39 100644
--- a/tests/src/com/android/server/telecom/tests/EventManagerTest.java
+++ b/tests/src/com/android/server/telecom/tests/EventManagerTest.java
@@ -16,11 +16,17 @@
 
 package com.android.server.telecom.tests;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertTrue;
+
 import android.net.Uri;
 import android.os.Build;
 import android.telecom.Log;
 import android.telecom.Logging.EventManager;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import org.junit.After;
 import org.junit.Before;
@@ -32,11 +38,6 @@
 import java.util.concurrent.LinkedBlockingQueue;
 import java.util.stream.Collectors;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertTrue;
-
 /**
  * Unit tests for android.telecom.Logging.EventManager.
  */
diff --git a/tests/src/com/android/server/telecom/tests/HeadsetMediaButtonTest.java b/tests/src/com/android/server/telecom/tests/HeadsetMediaButtonTest.java
index 0bfa987..b7e5921 100644
--- a/tests/src/com/android/server/telecom/tests/HeadsetMediaButtonTest.java
+++ b/tests/src/com/android/server/telecom/tests/HeadsetMediaButtonTest.java
@@ -16,17 +16,26 @@
 
 package com.android.server.telecom.tests;
 
+import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.Mockito.eq;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 import android.content.Intent;
 import android.media.session.MediaSession;
-import android.test.suitebuilder.annotation.MediumTest;
-import android.test.suitebuilder.annotation.SmallTest;
 import android.view.KeyEvent;
 
+import androidx.test.filters.MediumTest;
+import androidx.test.filters.SmallTest;
+
 import com.android.server.telecom.Call;
 import com.android.server.telecom.CallsManager;
 import com.android.server.telecom.HeadsetMediaButton;
-import com.android.server.telecom.TelecomSystem;
 import com.android.server.telecom.HeadsetMediaButton.MediaSessionWrapper;
+import com.android.server.telecom.TelecomSystem;
 
 import org.junit.After;
 import org.junit.Before;
@@ -37,15 +46,6 @@
 import org.mockito.Mock;
 import org.mockito.Mockito;
 
-import static org.junit.Assert.assertEquals;
-import static org.mockito.ArgumentMatchers.anyInt;
-import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.Mockito.eq;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
 @RunWith(JUnit4.class)
 public class HeadsetMediaButtonTest extends TelecomTestCase {
     private static final int TEST_TIMEOUT_MILLIS = 1000;
diff --git a/tests/src/com/android/server/telecom/tests/InCallControllerTests.java b/tests/src/com/android/server/telecom/tests/InCallControllerTests.java
index 683a5e2..bd0e97f 100644
--- a/tests/src/com/android/server/telecom/tests/InCallControllerTests.java
+++ b/tests/src/com/android/server/telecom/tests/InCallControllerTests.java
@@ -28,15 +28,13 @@
 import static org.junit.Assert.fail;
 import static org.mockito.ArgumentMatchers.anyBoolean;
 import static org.mockito.ArgumentMatchers.anyLong;
-import static org.mockito.ArgumentMatchers.anyObject;
 import static org.mockito.ArgumentMatchers.argThat;
 import static org.mockito.ArgumentMatchers.matches;
 import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.anyInt;
-import static org.mockito.Matchers.anyString;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Mockito.atLeastOnce;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
@@ -53,6 +51,7 @@
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.UiModeManager;
+import android.compat.testing.PlatformCompatChangeRule;
 import android.content.AttributionSource;
 import android.content.AttributionSourceState;
 import android.content.BroadcastReceiver;
@@ -70,7 +69,6 @@
 import android.content.pm.ServiceInfo;
 import android.content.pm.UserInfo;
 import android.content.res.Resources;
-import android.compat.testing.PlatformCompatChangeRule;
 import android.net.Uri;
 import android.os.Build;
 import android.os.Bundle;
@@ -87,10 +85,11 @@
 import android.telecom.PhoneAccountHandle;
 import android.telecom.TelecomManager;
 import android.test.mock.MockContext;
-import android.test.suitebuilder.annotation.MediumTest;
-import android.test.suitebuilder.annotation.SmallTest;
 import android.text.TextUtils;
 
+import androidx.test.filters.MediumTest;
+import androidx.test.filters.SmallTest;
+
 import com.android.dx.mockito.inline.extended.ExtendedMockito;
 import com.android.internal.telecom.IInCallAdapter;
 import com.android.internal.telecom.IInCallService;
@@ -143,6 +142,8 @@
     @Mock PackageManager mMockPackageManager;
     @Mock PermissionCheckerManager mMockPermissionCheckerManager;
     @Mock Call mMockCall;
+    @Mock Call mMockSystemCall1;
+    @Mock Call mMockSystemCall2;
     @Mock Resources mMockResources;
     @Mock AppOpsManager mMockAppOpsManager;
     @Mock MockContext mMockContext;
@@ -205,6 +206,7 @@
     private UserHandle mChildUserHandle = UserHandle.of(10);
     private @Mock Call mMockChildUserCall;
     private UserHandle mParentUserHandle = UserHandle.of(1);
+    private @Mock com.android.internal.telephony.flags.FeatureFlags mTelephonyFeatureFlags;
 
     @Override
     @Before
@@ -234,9 +236,11 @@
                 mMockPermissionInfo);
         when(mMockContext.getAttributionSource()).thenReturn(new AttributionSource(Process.myUid(),
                 "com.android.server.telecom.tests", null));
+        when(mTelephonyFeatureFlags.workProfileApiSplit()).thenReturn(false);
         mInCallController = new InCallController(mMockContext, mLock, mMockCallsManager,
                 mMockSystemStateHelper, mDefaultDialerCache, mTimeoutsAdapter,
-                mEmergencyCallHelper, mCarModeTracker, mClockProxy);
+                mEmergencyCallHelper, mCarModeTracker, mClockProxy, mFeatureFlags,
+                mTelephonyFeatureFlags);
         // Capture the broadcast receiver registered.
         doAnswer(invocation -> {
             mRegisteredReceiver = invocation.getArgument(0);
@@ -588,6 +592,7 @@
         when(mMockCall.isEmergencyCall()).thenReturn(true);
         when(mMockCall.isIncoming()).thenReturn(true);
         when(mMockCall.getAssociatedUser()).thenReturn(DUMMY_USER_HANDLE);
+        when(mMockCall.getTargetPhoneAccount()).thenReturn(PA_HANDLE);
         when(mMockContext.getSystemService(eq(UserManager.class)))
             .thenReturn(mMockUserManager);
         when(mMockUserManager.isQuietModeEnabled(any(UserHandle.class))).thenReturn(true);
@@ -617,6 +622,7 @@
         when(mMockCall.isInECBM()).thenReturn(true);
         when(mMockCall.isIncoming()).thenReturn(true);
         when(mMockCall.getAssociatedUser()).thenReturn(DUMMY_USER_HANDLE);
+        when(mMockCall.getTargetPhoneAccount()).thenReturn(PA_HANDLE);
         when(mMockContext.getSystemService(eq(UserManager.class)))
                 .thenReturn(mMockUserManager);
         when(mMockUserManager.isQuietModeEnabled(any(UserHandle.class))).thenReturn(true);
@@ -647,6 +653,7 @@
         when(mMockCall.isInECBM()).thenReturn(true);
         when(mMockCall.isIncoming()).thenReturn(true);
         when(mMockCall.getAssociatedUser()).thenReturn(DUMMY_USER_HANDLE);
+        when(mMockCall.getTargetPhoneAccount()).thenReturn(PA_HANDLE);
         when(mMockContext.getSystemService(eq(UserManager.class)))
                 .thenReturn(mMockUserManager);
         when(mMockUserManager.isQuietModeEnabled(any(UserHandle.class))).thenReturn(false);
@@ -1839,7 +1846,68 @@
         assertNull(mInCallController.getInCallServiceConnections().get(testUser));
     }
 
-    private void setupMocksForWorkProfileTest() {
+    @Test
+    public void testRemoveAllServiceConnections_MultiUser() throws Exception {
+        when(mFeatureFlags.associatedUserRefactorForWorkProfile()).thenReturn(true);
+        setupMocks(false /* isExternalCall */);
+        setupMockPackageManager(true /* default */, true /* system */, false /* external calls */);
+        UserHandle workUser = new UserHandle(12);
+        UserManager um = mContext.getSystemService(UserManager.class);
+        when(um.getUserInfo(anyInt())).thenReturn(mMockUserInfo);
+        when(mMockUserInfo.isManagedProfile()).thenReturn(false);
+        when(mMockCall.getAssociatedUser()).thenReturn(workUser);
+        setupFakeSystemCall(mMockSystemCall1, 1);
+        setupFakeSystemCall(mMockSystemCall2, 2);
+
+        // Add "work" call to service. The mapping should've been inserted
+        // with the workUser as the key.
+        mInCallController.onCallAdded(mMockCall);
+        // Add system call to service. The mapping should've been
+        // inserted with the system user as the key.
+        mInCallController.onCallAdded(mMockSystemCall1);
+
+        ArgumentCaptor<Intent> bindIntentCaptor = ArgumentCaptor.forClass(Intent.class);
+        // Make sure we bound to the system call as well as the work call.
+        verify(mMockContext, times(2)).bindServiceAsUser(
+                bindIntentCaptor.capture(),
+                any(ServiceConnection.class),
+                eq(serviceBindingFlags),
+                eq(UserHandle.CURRENT));
+        assertTrue(mInCallController.getInCallServiceConnections().containsKey(workUser));
+        assertTrue(mInCallController.getInCallServiceConnections().containsKey(UserHandle.SYSTEM));
+
+        // Remove the work call. This leverages getUserFromCall to remove the ICS mapping.
+        when(mMockCallsManager.getCalls()).thenReturn(Collections.singletonList(mMockSystemCall1));
+        mInCallController.onCallRemoved(mMockCall);
+        waitForHandlerAction(new Handler(Looper.getMainLooper()), TEST_TIMEOUT);
+        // Verify that the mapping was properly removed.
+        assertNull(mInCallController.getInCallServiceConnections().get(workUser));
+        // Verify mapping for system user is still present.
+        assertNotNull(mInCallController.getInCallServiceConnections().get(UserHandle.SYSTEM));
+
+        // Add another system call
+        mInCallController.onCallAdded(mMockSystemCall2);
+        when(mMockCallsManager.getCalls()).thenReturn(Collections.singletonList(mMockSystemCall2));
+        // Remove first system call and verify that mapping is present
+        mInCallController.onCallRemoved(mMockSystemCall1);
+        waitForHandlerAction(new Handler(Looper.getMainLooper()), TEST_TIMEOUT);
+        // Verify mapping for system user is still present.
+        assertNotNull(mInCallController.getInCallServiceConnections().get(UserHandle.SYSTEM));
+        // Remove last system call and verify that connection isn't present in ICS mapping.
+        when(mMockCallsManager.getCalls()).thenReturn(Collections.emptyList());
+        mInCallController.onCallRemoved(mMockSystemCall2);
+        waitForHandlerAction(new Handler(Looper.getMainLooper()), TEST_TIMEOUT);
+        assertNull(mInCallController.getInCallServiceConnections().get(UserHandle.SYSTEM));
+    }
+
+    private void setupFakeSystemCall(@Mock Call call, int id) {
+        when(call.getAssociatedUser()).thenReturn(UserHandle.SYSTEM);
+        when(call.getTargetPhoneAccount()).thenReturn(PA_HANDLE);
+        when(call.getAnalytics()).thenReturn(new Analytics.CallInfo());
+        when(call.getId()).thenReturn("TC@" + id);
+    }
+
+    private void setupMocksForProfileTest() {
         when(mMockContext.getPackageManager()).thenReturn(mMockPackageManager);
         when(mMockCallsManager.isInEmergencyCall()).thenReturn(false);
         when(mMockChildUserCall.isIncoming()).thenReturn(false);
@@ -1855,9 +1923,9 @@
         when(mMockUserInfo.getUserHandle()).thenReturn(mParentUserHandle);
         when(mMockChildUserInfo.getUserHandle()).thenReturn(mChildUserHandle);
         when(mMockUserInfo.isManagedProfile()).thenReturn(false);
-        when(mMockChildUserInfo.isManagedProfile()).thenReturn(true);
+        when(mMockChildUserInfo.isManagedProfile()).thenReturn(false);
         when(mMockChildUserCall.getAssociatedUser()).thenReturn(mChildUserHandle);
-        when(mMockCallsManager.getCurrentUserHandle()).thenReturn(mChildUserHandle);
+        when(mMockCallsManager.getCurrentUserHandle()).thenReturn(mParentUserHandle);
         when(mMockUserManager.getProfileParent(mChildUserHandle.getIdentifier())).thenReturn(
                 mMockUserInfo);
         when(mMockUserManager.getProfileParent(mChildUserHandle)).thenReturn(mParentUserHandle);
@@ -1865,14 +1933,14 @@
                 mMockUserInfo);
         when(mMockUserManager.getUserInfo(eq(mChildUserHandle.getIdentifier()))).thenReturn(
                 mMockChildUserInfo);
-        when(mMockUserManager.isManagedProfile(mChildUserHandle.getIdentifier())).thenReturn(true);
         when(mMockUserManager.isManagedProfile(mParentUserHandle.getIdentifier())).thenReturn(
                 false);
+        when(mTelephonyFeatureFlags.workProfileApiSplit()).thenReturn(true);
     }
 
     @Test
-    public void testManagedProfileCallQueriesIcsUsingParentUserToo() throws Exception {
-        setupMocksForWorkProfileTest();
+    public void testProfileCallQueriesIcsUsingParentUserToo() throws Exception {
+        setupMocksForProfileTest();
         setupMockPackageManager(true /* default */, true /* system */, false /* external calls */);
         setupMockPackageManager(true /* default */,
                 true /*useNonUiInCalls*/, true /*useAppOpNonUiInCalls*/,
@@ -1881,7 +1949,7 @@
                 true /*includeSelfManagedCallsInCarModeDialer*/,
                 true /*includeSelfManagedCallsInNonUi*/);
 
-        //pass in call by child/work-profileuser
+        //pass in call by child/profile user
         mInCallController.bindToServices(mMockChildUserCall);
 
         // Verify that queryIntentServicesAsUser is also called with parent handle
diff --git a/tests/src/com/android/server/telecom/tests/InCallServiceFixture.java b/tests/src/com/android/server/telecom/tests/InCallServiceFixture.java
index 88b5bb5..39381e6 100644
--- a/tests/src/com/android/server/telecom/tests/InCallServiceFixture.java
+++ b/tests/src/com/android/server/telecom/tests/InCallServiceFixture.java
@@ -16,6 +16,7 @@
 
 package com.android.server.telecom.tests;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.telecom.IInCallAdapter;
 import com.android.internal.telecom.IInCallService;
 
@@ -39,7 +40,7 @@
  * Controls a test {@link IInCallService} as would be provided by an InCall UI on a system.
  */
 public class InCallServiceFixture implements TestFixture<IInCallService> {
-
+    public static boolean sIgnoreOverrideAdapterFlag = false;
     public String mLatestCallId;
     public IInCallAdapter mInCallAdapter;
     public CallAudioState mCallAudioState;
@@ -53,10 +54,17 @@
     public CountDownLatch mUpdateCallLock = new CountDownLatch(1);
     public CountDownLatch mAddCallLock = new CountDownLatch(1);
 
+    @VisibleForTesting
+    public static void setIgnoreOverrideAdapterFlag(boolean flag) {
+        sIgnoreOverrideAdapterFlag = flag;
+    }
+
     public class FakeInCallService extends IInCallService.Stub {
         @Override
         public void setInCallAdapter(IInCallAdapter inCallAdapter) throws RemoteException {
-            if (mInCallAdapter != null && inCallAdapter != null) {
+            // sIgnoreOverrideAdapterFlag is being used to verify a scenario where the InCallAdapter
+            // gets set twice (secondary user places MO/MT call).
+            if (mInCallAdapter != null && inCallAdapter != null && !sIgnoreOverrideAdapterFlag) {
                 throw new RuntimeException("Adapter is already set");
             }
             if (mInCallAdapter == null && inCallAdapter == null) {
diff --git a/tests/src/com/android/server/telecom/tests/InCallTonePlayerTest.java b/tests/src/com/android/server/telecom/tests/InCallTonePlayerTest.java
index f11afc1..c9faa52 100644
--- a/tests/src/com/android/server/telecom/tests/InCallTonePlayerTest.java
+++ b/tests/src/com/android/server/telecom/tests/InCallTonePlayerTest.java
@@ -23,7 +23,6 @@
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.doNothing;
-import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.timeout;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
@@ -33,8 +32,11 @@
 import android.media.AudioManager;
 import android.media.MediaPlayer;
 import android.media.ToneGenerator;
-import android.test.suitebuilder.annotation.SmallTest;
 
+import androidx.test.filters.SmallTest;
+
+import com.android.server.telecom.AsyncRingtonePlayer;
+import com.android.server.telecom.Call;
 import com.android.server.telecom.CallAudioManager;
 import com.android.server.telecom.CallAudioRoutePeripheralAdapter;
 import com.android.server.telecom.CallAudioRouteStateMachine;
@@ -69,6 +71,7 @@
     @Mock private InCallTonePlayer.ToneGeneratorFactory mToneGeneratorFactory;
     @Mock private WiredHeadsetManager mWiredHeadsetManager;
     @Mock private DockManager mDockManager;
+    @Mock private AsyncRingtonePlayer mRingtonePlayer;
     @Mock private BluetoothDevice mDevice;
     @Mock private BluetoothAdapter mBluetoothAdapter;
 
@@ -110,6 +113,8 @@
 
     @Mock
     private CallAudioManager mCallAudioManager;
+    @Mock
+    private Call mCall;
 
     private InCallTonePlayer mInCallTonePlayer;
 
@@ -120,15 +125,15 @@
 
         when(mToneGeneratorFactory.get(anyInt(), anyInt())).thenReturn(mToneGenerator);
         when(mMediaPlayerFactory.get(anyInt(), any())).thenReturn(mMediaPlayerAdapter);
-        doNothing().when(mCallAudioManager).setIsTonePlaying(anyBoolean());
+        doNothing().when(mCallAudioManager).setIsTonePlaying(any(Call.class), anyBoolean());
 
         mCallAudioRoutePeripheralAdapter = new CallAudioRoutePeripheralAdapter(
                 mCallAudioRouteStateMachine, mBluetoothRouteManager, mWiredHeadsetManager,
-                mDockManager);
+                mDockManager, mRingtonePlayer);
         mFactory = new InCallTonePlayer.Factory(mCallAudioRoutePeripheralAdapter, mLock,
                 mToneGeneratorFactory, mMediaPlayerFactory, mAudioManagerAdapter);
         mFactory.setCallAudioManager(mCallAudioManager);
-        mInCallTonePlayer = mFactory.createPlayer(InCallTonePlayer.TONE_CALL_ENDED);
+        mInCallTonePlayer = mFactory.createPlayer(mCall, InCallTonePlayer.TONE_CALL_ENDED);
     }
 
     @Override
@@ -145,11 +150,12 @@
         assertTrue(mInCallTonePlayer.startTone());
         // Verify we did play a tone.
         verify(mMediaPlayerFactory, timeout(TEST_TIMEOUT)).get(anyInt(), any());
-        verify(mCallAudioManager).setIsTonePlaying(eq(true));
+        verify(mCallAudioManager).setIsTonePlaying(any(Call.class), eq(true));
 
         mInCallTonePlayer.stopTone();
         // Timeouts due to threads!
-        verify(mCallAudioManager, timeout(TEST_TIMEOUT)).setIsTonePlaying(eq(false));
+        verify(mCallAudioManager, timeout(TEST_TIMEOUT)).setIsTonePlaying(any(Call.class),
+                eq(false));
     }
 
     @SmallTest
@@ -159,11 +165,12 @@
         assertTrue(mInCallTonePlayer.startTone());
         // Verify we did play a tone.
         verify(mMediaPlayerFactory, timeout(TEST_TIMEOUT)).get(anyInt(), any());
-        verify(mCallAudioManager).setIsTonePlaying(eq(true));
+        verify(mCallAudioManager).setIsTonePlaying(any(Call.class), eq(true));
 
         mInCallTonePlayer.stopTone();
         // Timeouts due to threads!
-        verify(mCallAudioManager, timeout(TEST_TIMEOUT)).setIsTonePlaying(eq(false));
+        verify(mCallAudioManager, timeout(TEST_TIMEOUT)).setIsTonePlaying(any(Call.class),
+                eq(false));
 
         // Correctness check: ensure we can't start the tone again.
         assertFalse(mInCallTonePlayer.startTone());
@@ -172,15 +179,16 @@
     @SmallTest
     @Test
     public void testInterruptToneGenerator() {
-        mInCallTonePlayer = mFactory.createPlayer(InCallTonePlayer.TONE_RING_BACK);
+        mInCallTonePlayer = mFactory.createPlayer(mCall, InCallTonePlayer.TONE_RING_BACK);
         when(mAudioManagerAdapter.isVolumeOverZero()).thenReturn(true);
         assertTrue(mInCallTonePlayer.startTone());
         verify(mToneGenerator, timeout(TEST_TIMEOUT)).startTone(anyInt());
-        verify(mCallAudioManager).setIsTonePlaying(eq(true));
+        verify(mCallAudioManager).setIsTonePlaying(any(Call.class), eq(true));
 
         mInCallTonePlayer.stopTone();
         // Timeouts due to threads!
-        verify(mCallAudioManager, timeout(TEST_TIMEOUT)).setIsTonePlaying(eq(false));
+        verify(mCallAudioManager, timeout(TEST_TIMEOUT)).setIsTonePlaying(any(Call.class),
+                eq(false));
         // Ideally it would be nice to verify this, however release is a native method so appears to
         // cause flakiness when testing on Cuttlefish.
         // verify(mToneGenerator, timeout(TEST_TIMEOUT)).release();
@@ -197,7 +205,8 @@
 
         // Verify we did play a tone.
         verify(mMediaPlayerFactory, timeout(TEST_TIMEOUT)).get(anyInt(), any());
-        verify(mCallAudioManager, timeout(TEST_TIMEOUT)).setIsTonePlaying(eq(true));
+        verify(mCallAudioManager, timeout(TEST_TIMEOUT)).setIsTonePlaying(any(Call.class),
+                eq(true));
     }
 
     @SmallTest
@@ -211,11 +220,11 @@
         when(mBluetoothRouteManager.isCachedLeAudioDevice(mDevice)).thenReturn(false);
         when(mBluetoothRouteManager.isCachedHearingAidDevice(mDevice)).thenReturn(false);
 
-        mInCallTonePlayer = mFactory.createPlayer(InCallTonePlayer.TONE_RING_BACK);
+        mInCallTonePlayer = mFactory.createPlayer(mCall, InCallTonePlayer.TONE_RING_BACK);
         assertTrue(mInCallTonePlayer.startTone());
         verify(mToneGeneratorFactory, timeout(TEST_TIMEOUT))
                 .get(eq(AudioManager.STREAM_BLUETOOTH_SCO), anyInt());
-        verify(mCallAudioManager).setIsTonePlaying(eq(true));
+        verify(mCallAudioManager).setIsTonePlaying(any(Call.class), eq(true));
     }
 
     @SmallTest
@@ -229,11 +238,11 @@
         when(mBluetoothRouteManager.isCachedLeAudioDevice(mDevice)).thenReturn(false);
         when(mBluetoothRouteManager.isCachedHearingAidDevice(mDevice)).thenReturn(false);
 
-        mInCallTonePlayer = mFactory.createPlayer(InCallTonePlayer.TONE_CALL_WAITING);
+        mInCallTonePlayer = mFactory.createPlayer(mCall, InCallTonePlayer.TONE_CALL_WAITING);
         assertTrue(mInCallTonePlayer.startTone());
         verify(mToneGeneratorFactory, timeout(TEST_TIMEOUT))
                 .get(eq(AudioManager.STREAM_BLUETOOTH_SCO), anyInt());
-        verify(mCallAudioManager).setIsTonePlaying(eq(true));
+        verify(mCallAudioManager).setIsTonePlaying(any(Call.class), eq(true));
     }
 
     @SmallTest
@@ -247,11 +256,11 @@
         when(mBluetoothRouteManager.isCachedLeAudioDevice(mDevice)).thenReturn(false);
         when(mBluetoothRouteManager.isCachedHearingAidDevice(mDevice)).thenReturn(true);
 
-        mInCallTonePlayer = mFactory.createPlayer(InCallTonePlayer.TONE_RING_BACK);
+        mInCallTonePlayer = mFactory.createPlayer(mCall, InCallTonePlayer.TONE_RING_BACK);
         assertTrue(mInCallTonePlayer.startTone());
         verify(mToneGeneratorFactory, timeout(TEST_TIMEOUT))
                 .get(eq(AudioManager.STREAM_VOICE_CALL), anyInt());
-        verify(mCallAudioManager).setIsTonePlaying(eq(true));
+        verify(mCallAudioManager).setIsTonePlaying(any(Call.class), eq(true));
     }
 
     @SmallTest
@@ -265,10 +274,10 @@
         when(mBluetoothRouteManager.isCachedLeAudioDevice(mDevice)).thenReturn(false);
         when(mBluetoothRouteManager.isCachedHearingAidDevice(mDevice)).thenReturn(true);
 
-        mInCallTonePlayer = mFactory.createPlayer(InCallTonePlayer.TONE_CALL_WAITING);
+        mInCallTonePlayer = mFactory.createPlayer(mCall, InCallTonePlayer.TONE_CALL_WAITING);
         assertTrue(mInCallTonePlayer.startTone());
         verify(mToneGeneratorFactory, timeout(TEST_TIMEOUT))
                 .get(eq(AudioManager.STREAM_VOICE_CALL), anyInt());
-        verify(mCallAudioManager).setIsTonePlaying(eq(true));
+        verify(mCallAudioManager).setIsTonePlaying(any(Call.class), eq(true));
     }
 }
diff --git a/tests/src/com/android/server/telecom/tests/InCallWakeLockControllerTest.java b/tests/src/com/android/server/telecom/tests/InCallWakeLockControllerTest.java
index f935908..cdf2542 100644
--- a/tests/src/com/android/server/telecom/tests/InCallWakeLockControllerTest.java
+++ b/tests/src/com/android/server/telecom/tests/InCallWakeLockControllerTest.java
@@ -17,13 +17,14 @@
 package com.android.server.telecom.tests;
 
 import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.reset;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
-import static org.mockito.Mockito.never;
 
 import android.os.PowerManager;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.Call;
 import com.android.server.telecom.CallState;
diff --git a/tests/src/com/android/server/telecom/tests/IncomingCallFilterGraphTest.java b/tests/src/com/android/server/telecom/tests/IncomingCallFilterGraphTest.java
index 9269836..66ac553 100644
--- a/tests/src/com/android/server/telecom/tests/IncomingCallFilterGraphTest.java
+++ b/tests/src/com/android/server/telecom/tests/IncomingCallFilterGraphTest.java
@@ -16,11 +16,16 @@
 
 package com.android.server.telecom.tests;
 
+import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.nullable;
+import static org.mockito.Mockito.when;
+
 import android.content.ContentResolver;
 import android.content.Context;
 import android.os.Handler;
 import android.os.HandlerThread;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.Call;
 import com.android.server.telecom.TelecomSystem;
@@ -30,15 +35,11 @@
 import com.android.server.telecom.callfiltering.CallFilteringResult;
 import com.android.server.telecom.callfiltering.IncomingCallFilterGraph;
 
-import static org.junit.Assert.assertEquals;
-import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Mockito.when;
-
 import org.junit.Before;
+import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
 import org.mockito.Mock;
-import org.junit.Test;
 
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.CompletionStage;
diff --git a/tests/src/com/android/server/telecom/tests/IncomingCallNotifierTest.java b/tests/src/com/android/server/telecom/tests/IncomingCallNotifierTest.java
index 914fdc5..2d81bb3 100644
--- a/tests/src/com/android/server/telecom/tests/IncomingCallNotifierTest.java
+++ b/tests/src/com/android/server/telecom/tests/IncomingCallNotifierTest.java
@@ -16,15 +16,21 @@
 
 package com.android.server.telecom.tests;
 
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 import android.app.NotificationManager;
-import android.content.ComponentName;
 import android.content.Context;
 import android.content.pm.ApplicationInfo;
 import android.os.Build;
 import android.os.UserHandle;
-import android.telecom.PhoneAccountHandle;
 import android.telecom.VideoProfile;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.Call;
 import com.android.server.telecom.CallState;
@@ -38,14 +44,6 @@
 import org.junit.runners.JUnit4;
 import org.mockito.Mock;
 
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Matchers.isNull;
-import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
 /**
  * Tests for the {@link com.android.server.telecom.ui.IncomingCallNotifier} class.
  */
diff --git a/tests/src/com/android/server/telecom/tests/LogUtilsTest.java b/tests/src/com/android/server/telecom/tests/LogUtilsTest.java
index 637dfbc..4393d90 100644
--- a/tests/src/com/android/server/telecom/tests/LogUtilsTest.java
+++ b/tests/src/com/android/server/telecom/tests/LogUtilsTest.java
@@ -18,7 +18,7 @@
 
 import static org.junit.Assert.assertTrue;
 
-import android.test.suitebuilder.annotation.SmallTest;
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.LogUtils;
 
diff --git a/tests/src/com/android/server/telecom/tests/MissedCallNotifierImplTest.java b/tests/src/com/android/server/telecom/tests/MissedCallNotifierImplTest.java
index 2b05430..61e8347 100644
--- a/tests/src/com/android/server/telecom/tests/MissedCallNotifierImplTest.java
+++ b/tests/src/com/android/server/telecom/tests/MissedCallNotifierImplTest.java
@@ -16,9 +16,30 @@
 
 package com.android.server.telecom.tests;
 
+import static com.android.server.telecom.ui.MissedCallNotifierImpl.CALL_LOG_COLUMN_ID;
+
 import static junit.framework.Assert.assertEquals;
 import static junit.framework.Assert.assertTrue;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyLong;
+import static org.mockito.ArgumentMatchers.nullable;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.ArgumentMatchers.isNull;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.timeout;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 import android.app.BroadcastOptions;
 import android.app.Notification;
 import android.app.NotificationManager;
@@ -29,8 +50,6 @@
 import android.content.IContentProvider;
 import android.content.Intent;
 import android.content.pm.ApplicationInfo;
-import android.content.pm.PackageManager;
-import android.content.pm.ResolveInfo;
 import android.database.Cursor;
 import android.net.Uri;
 import android.os.Bundle;
@@ -39,13 +58,14 @@
 import android.os.Looper;
 import android.os.UserHandle;
 import android.provider.CallLog;
+import android.telecom.CallerInfo;
 import android.telecom.PhoneAccount;
 import android.telecom.PhoneAccountHandle;
 import android.telecom.TelecomManager;
 import android.telephony.TelephonyManager;
-import android.test.suitebuilder.annotation.SmallTest;
 
-import android.telecom.CallerInfo;
+import androidx.test.filters.SmallTest;
+
 import com.android.server.telecom.CallerInfoLookupHelper;
 import com.android.server.telecom.Constants;
 import com.android.server.telecom.DefaultDialerCache;
@@ -67,32 +87,11 @@
 import org.mockito.Mock;
 import org.mockito.MockitoAnnotations;
 
-import java.util.ArrayList;
 import java.util.Arrays;
 import java.util.HashSet;
 import java.util.LinkedList;
 import java.util.List;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNotNull;
-import static org.junit.Assert.assertNull;
-import static org.mockito.ArgumentMatchers.anyInt;
-import static org.mockito.ArgumentMatchers.anyLong;
-import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.anyString;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Matchers.isNull;
-import static org.mockito.Mockito.doNothing;
-import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.spy;
-import static org.mockito.Mockito.timeout;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
 @RunWith(JUnit4.class)
 public class MissedCallNotifierImplTest extends TelecomTestCase {
 
@@ -241,7 +240,7 @@
         MissedCallNotifier.CallInfo fakeCall = makeFakeCallInfo(TEL_CALL_HANDLE, CALLER_NAME,
                 CALL_TIMESTAMP, phoneAccount.getAccountHandle());
 
-        missedCallNotifier.showMissedCallNotification(fakeCall);
+        missedCallNotifier.showMissedCallNotification(fakeCall, /* uri= */ null);
         ArgumentCaptor<Intent> intentArgumentCaptor = ArgumentCaptor.forClass(Intent.class);
         verify(mContext).sendBroadcastAsUser(intentArgumentCaptor.capture(), any(),
                 anyString(), any());
@@ -250,6 +249,31 @@
         assertEquals(1, sentIntent.getIntExtra(TelecomManager.EXTRA_NOTIFICATION_COUNT, -1));
     }
 
+    @SmallTest
+    @Test
+    public void testCallLogUriSentToNotifier(){
+        MissedCallNotifier missedCallNotifier = setupMissedCallNotificationThroughDefaultDialer();
+        PhoneAccount phoneAccount = makePhoneAccount(PRIMARY_USER, NO_CAPABILITY);
+        Cursor mockMissedCallsCursor = new MockMissedCallCursorBuilder()
+                .addEntry(TEL_CALL_HANDLE.getSchemeSpecificPart(),
+                        CallLog.Calls.PRESENTATION_ALLOWED, CALL_TIMESTAMP)
+                .build();
+        MissedCallNotifier.CallInfo fakeCall = makeFakeCallInfo(TEL_CALL_HANDLE, CALLER_NAME,
+                CALL_TIMESTAMP, phoneAccount.getAccountHandle());
+        when(mFeatureFlags.addCallUriForMissedCalls()).thenReturn(true);
+
+        missedCallNotifier.showMissedCallNotification(fakeCall,
+                CallLog.Calls.CONTENT_URI.buildUpon().appendPath(Long.toString(
+                        mockMissedCallsCursor.getInt(CALL_LOG_COLUMN_ID))).build());
+        ArgumentCaptor<Intent> intentArgumentCaptor = ArgumentCaptor.forClass(Intent.class);
+        verify(mContext).sendBroadcastAsUser(intentArgumentCaptor.capture(), any(),
+                anyString(), any());
+
+        Intent sentIntent = intentArgumentCaptor.getValue();
+        Uri actualCallUri = sentIntent.getParcelableExtra(TelecomManager.EXTRA_CALL_LOG_URI);
+        assertTrue(actualCallUri.isPathPrefixMatch(CallLog.Calls.CONTENT_URI));
+    }
+
     private MissedCallNotifier setupMissedCallNotificationThroughDefaultDialer() {
         mComponentContextFixture.addIntentReceiver(
                 TelecomManager.ACTION_SHOW_MISSED_CALLS_NOTIFICATION, COMPONENT_NAME);
@@ -275,9 +299,9 @@
         MissedCallNotifier.CallInfo fakeCall = makeFakeCallInfo(TEL_CALL_HANDLE, CALLER_NAME,
                 CALL_TIMESTAMP, phoneAccount.getAccountHandle());
 
-        missedCallNotifier.showMissedCallNotification(fakeCall);
+        missedCallNotifier.showMissedCallNotification(fakeCall, /* uri= */null);
         missedCallNotifier.clearMissedCalls(userHandle);
-        missedCallNotifier.showMissedCallNotification(fakeCall);
+        missedCallNotifier.showMissedCallNotification(fakeCall, /* uri= */null);
 
         ArgumentCaptor<Integer> requestIdCaptor = ArgumentCaptor.forClass(
                 Integer.class);
@@ -308,10 +332,10 @@
 
         MissedCallNotifier missedCallNotifier = new MissedCallNotifierImpl(mContext,
                 mPhoneAccountRegistrar, mDefaultDialerCache, fakeBuilderFactory,
-                mDeviceIdleControllerAdapter);
+                mDeviceIdleControllerAdapter, mFeatureFlags);
 
-        missedCallNotifier.showMissedCallNotification(fakeCall);
-        missedCallNotifier.showMissedCallNotification(fakeCall);
+        missedCallNotifier.showMissedCallNotification(fakeCall, /* uri= */ null);
+        missedCallNotifier.showMissedCallNotification(fakeCall, /* uri= */ null);
 
         // The following captor is to capture the two notifications that got passed into
         // notifyAsUser. This distinguishes between the builders used for the full notification
@@ -402,7 +426,7 @@
 
         MissedCallNotifier.CallInfo fakeCall = makeFakeCallInfo(TEL_CALL_HANDLE, CALLER_NAME,
                 CALL_TIMESTAMP, phoneAccount.getAccountHandle());
-        missedCallNotifier.showMissedCallNotification(fakeCall);
+        missedCallNotifier.showMissedCallNotification(fakeCall, /* uri= */ null);
 
         ArgumentCaptor<Notification> notificationArgumentCaptor = ArgumentCaptor.forClass(
                 Notification.class);
@@ -464,13 +488,13 @@
 
         MissedCallNotifier missedCallNotifier = new MissedCallNotifierImpl(mContext,
                 mPhoneAccountRegistrar, mDefaultDialerCache, fakeBuilderFactory,
-                mDeviceIdleControllerAdapter);
+                mDeviceIdleControllerAdapter, mFeatureFlags);
         PhoneAccount phoneAccount = makePhoneAccount(PRIMARY_USER, NO_CAPABILITY);
 
         MissedCallNotifier.CallInfo fakeCall =
                 makeFakeCallInfo(SIP_CALL_HANDLE, CALLER_NAME, CALL_TIMESTAMP,
                 phoneAccount.getAccountHandle());
-        missedCallNotifier.showMissedCallNotification(fakeCall);
+        missedCallNotifier.showMissedCallNotification(fakeCall, /* uri= */ null);
 
         // Create two intents that correspond to call-back and respond back with SMS, and assert
         // that in the case of a SIP call, no SMS intent is generated.
@@ -525,7 +549,7 @@
 
         MissedCallNotifier missedCallNotifier = new MissedCallNotifierImpl(mContext,
                 mPhoneAccountRegistrar, mDefaultDialerCache, fakeBuilderFactory,
-                mDeviceIdleControllerAdapter);
+                mDeviceIdleControllerAdapter, mFeatureFlags);
 
         // AsyncQueryHandler used in reloadFromDatabase interacts poorly with the below
         // timeout-verify, so run this in a new handler to mitigate that.
@@ -595,7 +619,7 @@
 
         MissedCallNotifier missedCallNotifier = new MissedCallNotifierImpl(mContext,
                 mPhoneAccountRegistrar, mDefaultDialerCache, fakeBuilderFactory,
-                mDeviceIdleControllerAdapter);
+                mDeviceIdleControllerAdapter, mFeatureFlags);
 
         // AsyncQueryHandler used in reloadFromDatabase interacts poorly with the below
         // timeout-verify, so run this in a new handler to mitigate that.
@@ -637,13 +661,13 @@
 
         MissedCallNotifier missedCallNotifier = new MissedCallNotifierImpl(mContext,
                 mPhoneAccountRegistrar, mDefaultDialerCache, fakeBuilderFactory,
-                mDeviceIdleControllerAdapter);
+                mDeviceIdleControllerAdapter, mFeatureFlags);
         PhoneAccount phoneAccount = makePhoneAccount(PRIMARY_USER, NO_CAPABILITY);
 
         MissedCallNotifier.CallInfo fakeCall =
                 makeFakeCallInfo(SIP_CALL_HANDLE, CALLER_NAME, CALL_TIMESTAMP,
                         phoneAccount.getAccountHandle());
-        missedCallNotifier.showMissedCallNotification(fakeCall);
+        missedCallNotifier.showMissedCallNotification(fakeCall, /* uri= */ null);
 
         ArgumentCaptor<Intent> intentCaptor = ArgumentCaptor.forClass(Intent.class);
         ArgumentCaptor<Bundle> bundleCaptor =
@@ -701,7 +725,7 @@
             NotificationBuilderFactory fakeBuilderFactory, UserHandle currentUser) {
         MissedCallNotifier missedCallNotifier = new MissedCallNotifierImpl(mContext,
                 mPhoneAccountRegistrar, mDefaultDialerCache, fakeBuilderFactory,
-                mDeviceIdleControllerAdapter);
+                mDeviceIdleControllerAdapter, mFeatureFlags);
         missedCallNotifier.setCurrentUserHandle(currentUser);
         return missedCallNotifier;
     }
diff --git a/tests/src/com/android/server/telecom/tests/MissedCallNotifierTest.java b/tests/src/com/android/server/telecom/tests/MissedCallNotifierTest.java
index e441835..c0e3435 100644
--- a/tests/src/com/android/server/telecom/tests/MissedCallNotifierTest.java
+++ b/tests/src/com/android/server/telecom/tests/MissedCallNotifierTest.java
@@ -16,14 +16,17 @@
 
 package com.android.server.telecom.tests;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertNull;
+
 import android.content.ComponentName;
 import android.net.Uri;
-import android.telecom.PhoneAccountHandle;
-import android.test.suitebuilder.annotation.SmallTest;
 import android.telecom.CallerInfo;
+import android.telecom.PhoneAccountHandle;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.MissedCallNotifier;
-import com.android.server.telecom.MissedCallNotifier.CallInfo;
 
 import org.junit.After;
 import org.junit.Before;
@@ -31,9 +34,6 @@
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertNull;
-
 @RunWith(JUnit4.class)
 public class MissedCallNotifierTest extends TelecomTestCase {
     private static final ComponentName COMPONENT_NAME =
diff --git a/tests/src/com/android/server/telecom/tests/MissedInformationTest.java b/tests/src/com/android/server/telecom/tests/MissedInformationTest.java
index 4af3de3..0c3588e 100644
--- a/tests/src/com/android/server/telecom/tests/MissedInformationTest.java
+++ b/tests/src/com/android/server/telecom/tests/MissedInformationTest.java
@@ -32,9 +32,9 @@
 import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.Matchers.anyInt;
-import static org.mockito.Matchers.anyString;
-import static org.mockito.Matchers.eq;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.spy;
@@ -109,6 +109,7 @@
         mAdapter = new CallIntentProcessor.AdapterImpl(mCallsManager.getDefaultDialerCache());
         mNotificationManager = spy((NotificationManager) mContext.getSystemService(
                 Context.NOTIFICATION_SERVICE));
+        when(mFeatureFlags.telecomResolveHiddenDependencies()).thenReturn(true);
         when(mContentResolver.getPackageName()).thenReturn(PACKAGE_NAME);
         when(mContentResolver.acquireProvider(any(String.class))).thenReturn(mContentProvider);
         when(mContentProvider.call(any(String.class), any(String.class),
@@ -152,6 +153,8 @@
         setUpEmergencyCall();
         when(mEmergencyCall.getAssociatedUser()).
                 thenReturn(mPhoneAccountA0.getAccountHandle().getUserHandle());
+        when(mEmergencyCall.getTargetPhoneAccount())
+                .thenReturn(mPhoneAccountA0.getAccountHandle());
         mCallsManager.addCall(mEmergencyCall);
         assertTrue(mCallsManager.isInEmergencyCall());
 
@@ -417,7 +420,7 @@
                 null, mCallsManager.getPhoneNumberUtilsAdapter(), null,
                 null, null, mPhoneAccountA0.getAccountHandle(),
                 Call.CALL_DIRECTION_INCOMING, false, false,
-                mClockProxy, null));
+                mClockProxy, null, mFeatureFlags));
         doReturn(1L).when(mIncomingCall).getStartRingTime();
         doAnswer((x) -> {
             mCountDownLatch.countDown();
diff --git a/tests/src/com/android/server/telecom/tests/MmiUtilsTest.java b/tests/src/com/android/server/telecom/tests/MmiUtilsTest.java
index ed74637..3f4b5f6 100644
--- a/tests/src/com/android/server/telecom/tests/MmiUtilsTest.java
+++ b/tests/src/com/android/server/telecom/tests/MmiUtilsTest.java
@@ -20,7 +20,8 @@
 import static org.junit.Assert.assertTrue;
 
 import android.net.Uri;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.MmiUtils;
 
diff --git a/tests/src/com/android/server/telecom/tests/NewOutgoingCallIntentBroadcasterTest.java b/tests/src/com/android/server/telecom/tests/NewOutgoingCallIntentBroadcasterTest.java
index 33acd98..e75ad97 100644
--- a/tests/src/com/android/server/telecom/tests/NewOutgoingCallIntentBroadcasterTest.java
+++ b/tests/src/com/android/server/telecom/tests/NewOutgoingCallIntentBroadcasterTest.java
@@ -20,17 +20,16 @@
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.anyBoolean;
-import static org.mockito.Matchers.anyInt;
-import static org.mockito.Matchers.anyString;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Matchers.isNotNull;
-import static org.mockito.Matchers.isNull;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyBoolean;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.ArgumentMatchers.isNotNull;
+import static org.mockito.ArgumentMatchers.isNull;
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.doThrow;
 import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
@@ -51,7 +50,8 @@
 import android.telecom.VideoProfile;
 import android.telephony.DisconnectCause;
 import android.telephony.TelephonyManager;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.Call;
 import com.android.server.telecom.CallsManager;
@@ -64,6 +64,7 @@
 import com.android.server.telecom.RoleManagerAdapter;
 import com.android.server.telecom.SystemStateHelper;
 import com.android.server.telecom.TelecomSystem;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import org.junit.After;
 import org.junit.Before;
@@ -75,6 +76,8 @@
 
 @RunWith(JUnit4.class)
 public class NewOutgoingCallIntentBroadcasterTest extends TelecomTestCase {
+    private static final Uri TEST_URI = Uri.parse("tel:16505551212");
+
     private static class ReceiverIntentPair {
         public BroadcastReceiver receiver;
         public Intent intent;
@@ -93,6 +96,7 @@
     @Mock private PhoneAccountRegistrar mPhoneAccountRegistrar;
     @Mock private RoleManagerAdapter mRoleManagerAdapter;
     @Mock private DefaultDialerCache mDefaultDialerCache;
+    @Mock private FeatureFlags mFeatureFlags;
 
     @Mock private MmiUtils mMmiUtils;
     private PhoneNumberUtilsAdapter mPhoneNumberUtilsAdapter = new PhoneNumberUtilsAdapterImpl();
@@ -113,6 +117,7 @@
             any(PhoneAccountHandle.class))).thenReturn(mPhoneAccount);
         when(mPhoneAccount.isSelfManaged()).thenReturn(true);
         when(mSystemStateHelper.isCarModeOrProjectionActive()).thenReturn(false);
+        when(mFeatureFlags.isNewOutgoingCallBroadcastUnblocking()).thenReturn(false);
     }
 
     @Override
@@ -510,6 +515,84 @@
         testUnmodifiedRegularCall();
     }
 
+    /**
+     * Where the flag `isNewOutgoingCallBroadcastUnblocking` is off, verify that we sent an ordered
+     * broadcast and did not try to start the call immediately (legacy behavior).
+     */
+    @SmallTest
+    @Test
+    public void testSendBroadcastBlocking() {
+        when(mFeatureFlags.isNewOutgoingCallBroadcastUnblocking()).thenReturn(false);
+        Intent intent = new Intent(Intent.ACTION_CALL, TEST_URI);
+        NewOutgoingCallIntentBroadcaster nocib = new NewOutgoingCallIntentBroadcaster(
+                mContext, mCallsManager, intent, mPhoneNumberUtilsAdapter,
+                true /* isDefaultPhoneApp */, mDefaultDialerCache, mMmiUtils, mFeatureFlags);
+
+        NewOutgoingCallIntentBroadcaster.CallDisposition disposition = nocib.evaluateCall();
+        nocib.processCall(mCall, disposition);
+
+        // We should not have not short-circuited to place the outgoing call directly.
+        verify(mCall, never()).setNewOutgoingCallIntentBroadcastIsDone();
+        verify(mCallsManager, never()).placeOutgoingCall(any(Call.class), any(Uri.class),
+                any(GatewayInfo.class), anyBoolean(), anyInt());
+
+        // Ensure we did send the broadcast ordered
+        verifyBroadcastSent(TEST_URI.getSchemeSpecificPart(),
+                createNumberExtras(TEST_URI.getSchemeSpecificPart()));
+
+        // Ensure we did not try to directly send the broadcast unordered.
+        verify(mContext, never()).sendBroadcastAsUser(
+                any(Intent.class),
+                eq(UserHandle.CURRENT),
+                eq(android.Manifest.permission.PROCESS_OUTGOING_CALLS));
+    }
+
+    /**
+     * Where the flag `isNewOutgoingCallBroadcastUnblocking` is off, verify that we sent an ordered
+     * broadcast and did not try to start the call immediately.  Also ensure that the broadcast
+     * flags are correct.
+     */
+    @SmallTest
+    @Test
+    public void testSendBroadcastNonBlocking() {
+        when(mFeatureFlags.isNewOutgoingCallBroadcastUnblocking()).thenReturn(true);
+        Intent intent = new Intent(Intent.ACTION_CALL, TEST_URI);
+        NewOutgoingCallIntentBroadcaster nocib = new NewOutgoingCallIntentBroadcaster(
+                mContext, mCallsManager, intent, mPhoneNumberUtilsAdapter,
+                true /* isDefaultPhoneApp */, mDefaultDialerCache, mMmiUtils, mFeatureFlags);
+
+        NewOutgoingCallIntentBroadcaster.CallDisposition disposition = nocib.evaluateCall();
+        nocib.processCall(mCall, disposition);
+
+        // We should have started the outgoing call flow immediately.
+        verify(mCall).setNewOutgoingCallIntentBroadcastIsDone();
+        verify(mCallsManager).placeOutgoingCall(any(Call.class), any(Uri.class),
+                nullable(GatewayInfo.class), anyBoolean(), anyInt());
+
+        // Ensure we didn't send an ordered broadcast.
+        verify(mContext, never()).sendOrderedBroadcastAsUser(
+                any(Intent.class),
+                any(UserHandle.class),
+                anyString(),
+                anyInt(),
+                any(Bundle.class),
+                any(BroadcastReceiver.class),
+                any(Handler.class),
+                eq(Activity.RESULT_OK),
+                anyString(),
+                any(Bundle.class));
+
+        // But that we did send a regular broadcast.
+        ArgumentCaptor<Intent> intentArgumentCaptor = ArgumentCaptor.forClass(Intent.class);
+        verify(mContext).sendBroadcastAsUser(
+                intentArgumentCaptor.capture(),
+                eq(UserHandle.CURRENT),
+                eq(android.Manifest.permission.PROCESS_OUTGOING_CALLS),
+                eq(AppOpsManager.OP_PROCESS_OUTGOING_CALLS));
+        Intent capturedIntent = intentArgumentCaptor.getValue();
+        assertEquals(Intent.FLAG_RECEIVER_INCLUDE_BACKGROUND, capturedIntent.getFlags());
+    }
+
     private ReceiverIntentPair regularCallTestHelper(Intent intent,
             Bundle expectedAdditionalExtras) {
         Uri handle = intent.getData();
@@ -542,7 +625,7 @@
             boolean isDefaultPhoneApp) {
         NewOutgoingCallIntentBroadcaster b = new NewOutgoingCallIntentBroadcaster(
                 mContext, mCallsManager, intent, mPhoneNumberUtilsAdapter,
-                isDefaultPhoneApp, mDefaultDialerCache, mMmiUtils);
+                isDefaultPhoneApp, mDefaultDialerCache, mMmiUtils, mFeatureFlags);
         NewOutgoingCallIntentBroadcaster.CallDisposition cd = b.evaluateCall();
         if (cd.disconnectCause == DisconnectCause.NOT_DISCONNECTED) {
             b.processCall(mCall, cd);
diff --git a/tests/src/com/android/server/telecom/tests/ParcelableCallUtilsTest.java b/tests/src/com/android/server/telecom/tests/ParcelableCallUtilsTest.java
index fed8084..8eefd96 100644
--- a/tests/src/com/android/server/telecom/tests/ParcelableCallUtilsTest.java
+++ b/tests/src/com/android/server/telecom/tests/ParcelableCallUtilsTest.java
@@ -13,11 +13,13 @@
 import android.net.Uri;
 import android.os.Bundle;
 import android.os.SystemClock;
+import android.os.UserHandle;
 import android.telecom.Connection;
 import android.telecom.ParcelableCall;
 import android.telecom.PhoneAccountHandle;
 import android.telephony.ims.ImsCallProfile;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.Call;
 import com.android.server.telecom.CallerInfoLookupHelper;
@@ -57,6 +59,7 @@
         when(mClockProxy.elapsedRealtime()).thenReturn(SystemClock.elapsedRealtime());
         when(mCallsManager.getCallerInfoLookupHelper()).thenReturn(mCallerInfoLookupHelper);
         when(mCallsManager.getPhoneAccountRegistrar()).thenReturn(mPhoneAccountRegistrar);
+        when(mCallsManager.getCurrentUserHandle()).thenReturn(UserHandle.CURRENT);
         when(mPhoneAccountRegistrar.getPhoneAccountUnchecked(any())).thenReturn(null);
         when(mComponentContextFixture.getTelephonyManager().isEmergencyNumber(any()))
                 .thenReturn(false);
@@ -75,7 +78,8 @@
                 false /* shouldAttachToExistingConnection */,
                 false /* isConference */,
                 mClockProxy /* ClockProxy */,
-                mToastProxy);
+                mToastProxy,
+                mFeatureFlags);
     }
 
     @Override
diff --git a/tests/src/com/android/server/telecom/tests/PhoneAccountRegistrarTest.java b/tests/src/com/android/server/telecom/tests/PhoneAccountRegistrarTest.java
index e573bb8..2d10f40 100644
--- a/tests/src/com/android/server/telecom/tests/PhoneAccountRegistrarTest.java
+++ b/tests/src/com/android/server/telecom/tests/PhoneAccountRegistrarTest.java
@@ -23,14 +23,12 @@
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 import static org.mockito.ArgumentMatchers.any;
-import static org.mockito.Matchers.anyBoolean;
-import static org.mockito.Matchers.anyInt;
-import static org.mockito.Matchers.anyString;
+import static org.mockito.ArgumentMatchers.anyBoolean;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.Mockito.clearInvocations;
-import static org.mockito.Mockito.doThrow;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.spy;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
@@ -57,11 +55,11 @@
 import android.telephony.CarrierConfigManager;
 import android.telephony.SubscriptionInfo;
 import android.telephony.SubscriptionManager;
-import android.test.suitebuilder.annotation.SmallTest;
-import android.test.suitebuilder.annotation.MediumTest;
 import android.util.Xml;
 
 import androidx.test.InstrumentationRegistry;
+import androidx.test.filters.MediumTest;
+import androidx.test.filters.SmallTest;
 
 import com.android.internal.telecom.IConnectionService;
 import com.android.internal.util.FastXmlSerializer;
@@ -117,6 +115,7 @@
     @Mock private TelecomManager mTelecomManager;
     @Mock private DefaultDialerCache mDefaultDialerCache;
     @Mock private AppLabelProxy mAppLabelProxy;
+    @Mock private com.android.internal.telephony.flags.FeatureFlags mTelephonyFeatureFlags;
 
     @Override
     @Before
@@ -134,8 +133,10 @@
         when(mAppLabelProxy.getAppLabel(anyString()))
                 .thenReturn(TEST_LABEL);
         mRegistrar = new PhoneAccountRegistrar(
-                mComponentContextFixture.getTestDouble().getApplicationContext(),
-                mLock, FILE_NAME, mDefaultDialerCache, mAppLabelProxy);
+                mComponentContextFixture.getTestDouble().getApplicationContext(), mLock, FILE_NAME,
+                mDefaultDialerCache, mAppLabelProxy, mTelephonyFeatureFlags);
+        when(mFeatureFlags.onlyUpdateTelephonyOnValidSubIds()).thenReturn(false);
+        when(mTelephonyFeatureFlags.workProfileApiSplit()).thenReturn(false);
     }
 
     @Override
@@ -1700,6 +1701,56 @@
         }
     }
 
+    @Test
+    public void testGetPhoneAccountAcrossUsers() throws Exception {
+        when(mTelephonyFeatureFlags.workProfileApiSplit()).thenReturn(true);
+        mComponentContextFixture.addConnectionService(makeQuickConnectionServiceComponentName(),
+                Mockito.mock(IConnectionService.class));
+
+        PhoneAccount accountForCurrent = makeQuickAccountBuilder("id_0", 0, UserHandle.CURRENT)
+                .setCapabilities(PhoneAccount.CAPABILITY_CONNECTION_MANAGER
+                        | PhoneAccount.CAPABILITY_CALL_PROVIDER).build();
+        PhoneAccount accountForAll = makeQuickAccountBuilder("id_0", 0, UserHandle.ALL)
+                .setCapabilities(PhoneAccount.CAPABILITY_CONNECTION_MANAGER
+                        | PhoneAccount.CAPABILITY_CALL_PROVIDER
+                        | PhoneAccount.CAPABILITY_MULTI_USER).build();
+        PhoneAccount accountForWorkProfile = makeQuickAccountBuilder("id_1", 1, USER_HANDLE_10)
+                .setCapabilities(PhoneAccount.CAPABILITY_CONNECTION_MANAGER
+                        | PhoneAccount.CAPABILITY_CALL_PROVIDER).build();
+
+        registerAndEnableAccount(accountForCurrent);
+        registerAndEnableAccount(accountForAll);
+        registerAndEnableAccount(accountForWorkProfile);
+
+        List<PhoneAccount> accountsForUser = mRegistrar.getPhoneAccounts(0, 0,
+                null, null, false, USER_HANDLE_10, false, false);
+        List<PhoneAccount> accountsVisibleUser = mRegistrar.getPhoneAccounts(0, 0,
+                null, null, false, USER_HANDLE_10, false, true);
+        List<PhoneAccount> accountsAcrossUser = mRegistrar.getPhoneAccounts(0, 0,
+                null, null, false, USER_HANDLE_10, true, false);
+
+        // Return the account exactly matching the user if it exists
+        assertEquals(1, accountsForUser.size());
+        assertTrue(accountsForUser.contains(accountForWorkProfile));
+        // The accounts visible to the user without across user permission
+        assertEquals(2, accountsVisibleUser.size());
+        assertTrue(accountsVisibleUser.containsAll(accountsForUser));
+        assertTrue(accountsVisibleUser.contains(accountForAll));
+        // The accounts visible to the user with across user permission
+        assertEquals(3, accountsAcrossUser.size());
+        assertTrue(accountsAcrossUser.containsAll(accountsVisibleUser));
+        assertTrue(accountsAcrossUser.contains(accountForCurrent));
+
+        mRegistrar.unregisterPhoneAccount(accountForWorkProfile.getAccountHandle());
+
+        accountsForUser = mRegistrar.getPhoneAccounts(0, 0,
+                null, null, false, USER_HANDLE_10, false, false);
+
+        // Return the account visible for the user if no account exactly matches the user
+        assertEquals(1, accountsForUser.size());
+        assertTrue(accountsForUser.contains(accountForAll));
+    }
+
     private static PhoneAccount.Builder makeBuilderWithBindCapabilities(PhoneAccountHandle handle) {
         return new PhoneAccount.Builder(handle, TEST_LABEL)
                 .setCapabilities(PhoneAccount.CAPABILITY_SUPPORTS_TRANSACTIONAL_OPERATIONS);
diff --git a/tests/src/com/android/server/telecom/tests/ProximitySensorManagerTest.java b/tests/src/com/android/server/telecom/tests/ProximitySensorManagerTest.java
index 807b7cf..310f4cb 100644
--- a/tests/src/com/android/server/telecom/tests/ProximitySensorManagerTest.java
+++ b/tests/src/com/android/server/telecom/tests/ProximitySensorManagerTest.java
@@ -16,8 +16,14 @@
 
 package com.android.server.telecom.tests;
 
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
 import android.os.PowerManager;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.Call;
 import com.android.server.telecom.CallsManager;
@@ -33,11 +39,6 @@
 
 import java.util.List;
 
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.when;
-
 @RunWith(JUnit4.class)
 public class ProximitySensorManagerTest extends TelecomTestCase{
 
diff --git a/tests/src/com/android/server/telecom/tests/RingbackPlayerTest.java b/tests/src/com/android/server/telecom/tests/RingbackPlayerTest.java
new file mode 100644
index 0000000..e8d39c8
--- /dev/null
+++ b/tests/src/com/android/server/telecom/tests/RingbackPlayerTest.java
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package com.android.server.telecom.tests;
+
+import static org.junit.Assert.assertFalse;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.when;
+
+import androidx.test.filters.SmallTest;
+
+import com.android.server.telecom.Call;
+import com.android.server.telecom.CallState;
+import com.android.server.telecom.InCallTonePlayer;
+import com.android.server.telecom.RingbackPlayer;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+import org.mockito.Mock;
+
+import java.util.concurrent.CountDownLatch;
+
+@RunWith(JUnit4.class)
+public class RingbackPlayerTest extends TelecomTestCase {
+    @Mock InCallTonePlayer.Factory mFactory;
+    @Mock Call mCall;
+    @Mock InCallTonePlayer mTonePlayer;
+
+    private RingbackPlayer mRingbackPlayer;
+
+    @Before
+    @Override
+    public void setUp() throws Exception {
+        super.setUp();
+        when(mFactory.createPlayer(any(Call.class), anyInt())).thenReturn(mTonePlayer);
+        mRingbackPlayer = new RingbackPlayer(mFactory);
+    }
+
+    @SmallTest
+    @Test
+    public void testPlayerSync() {
+        // make sure InCallTonePlayer try to start playing the tone after RingbackPlayer receives
+        // stop tone request.
+        CountDownLatch latch = new CountDownLatch(1);
+        doReturn(CallState.DIALING).when(mCall).getState();
+        doAnswer(x -> {
+            new Thread(() -> {
+                try {
+                    latch.await();
+                } catch (InterruptedException e) {
+                    // Ignore
+                }
+            }).start();
+            return true;
+        }).when(mTonePlayer).startTone();
+
+        mRingbackPlayer.startRingbackForCall(mCall);
+        mRingbackPlayer.stopRingbackForCall(mCall);
+        assertFalse(mRingbackPlayer.isRingbackPlaying());
+        latch.countDown();
+    }
+}
diff --git a/tests/src/com/android/server/telecom/tests/RingerTest.java b/tests/src/com/android/server/telecom/tests/RingerTest.java
index a4adf77..a0ec267 100644
--- a/tests/src/com/android/server/telecom/tests/RingerTest.java
+++ b/tests/src/com/android/server/telecom/tests/RingerTest.java
@@ -16,8 +16,10 @@
 
 package com.android.server.telecom.tests;
 
+import static android.os.VibrationEffect.EFFECT_CLICK;
 import static android.provider.Settings.Global.ZEN_MODE_IMPORTANT_INTERRUPTIONS;
 
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.assertFalse;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
@@ -30,6 +32,8 @@
 import static org.mockito.Mockito.doReturn;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.timeout;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.verifyNoMoreInteractions;
@@ -50,9 +54,13 @@
 import android.os.VibrationAttributes;
 import android.os.VibrationEffect;
 import android.os.Vibrator;
+import android.os.VibratorInfo;
+import android.platform.test.flag.junit.CheckFlagsRule;
+import android.platform.test.flag.junit.DeviceFlagsValueProvider;
 import android.telecom.PhoneAccountHandle;
 import android.telecom.TelecomManager;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.AsyncRingtonePlayer;
 import com.android.server.telecom.Call;
@@ -62,33 +70,47 @@
 import com.android.server.telecom.Ringer;
 import com.android.server.telecom.RingtoneFactory;
 import com.android.server.telecom.SystemSettingsUtil;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import org.junit.After;
 import org.junit.Before;
+import org.junit.Rule;
 import org.junit.Test;
 import org.junit.runner.RunWith;
 import org.junit.runners.JUnit4;
 import org.mockito.Mock;
 import org.mockito.Spy;
 
+import java.time.Duration;
 import java.util.concurrent.CompletableFuture;
 
 @RunWith(JUnit4.class)
 public class RingerTest extends TelecomTestCase {
+    @Rule
+    public final CheckFlagsRule mCheckFlagsRule = DeviceFlagsValueProvider.createCheckFlagsRule();
+
     private static final Uri FAKE_RINGTONE_URI = Uri.parse("content://media/fake/audio/1729");
     // Returned when the a URI-based VibrationEffect is attempted, to avoid depending on actual
     // device configuration for ringtone URIs. The actual Uri can be verified via the
     // VibrationEffectProxy mock invocation.
     private static final VibrationEffect URI_VIBRATION_EFFECT =
             VibrationEffect.createPredefined(VibrationEffect.EFFECT_CLICK);
+    private static final VibrationEffect EXPECTED_SIMPLE_VIBRATION_PATTERN =
+            VibrationEffect.createWaveform(
+                    new long[] {0, 1000, 1000}, new int[] {0, 255, 0}, 1);
+    private static final VibrationEffect EXPECTED_PULSE_VIBRATION_PATTERN =
+            VibrationEffect.createWaveform(
+                    Ringer.PULSE_PATTERN, Ringer.PULSE_AMPLITUDE, 5);
 
     @Mock InCallTonePlayer.Factory mockPlayerFactory;
     @Mock SystemSettingsUtil mockSystemSettingsUtil;
     @Mock RingtoneFactory mockRingtoneFactory;
     @Mock Vibrator mockVibrator;
+    @Mock VibratorInfo mockVibratorInfo;
     @Mock InCallController mockInCallController;
     @Mock NotificationManager mockNotificationManager;
     @Mock Ringer.AccessibilityManagerAdapter mockAccessibilityManagerAdapter;
+    @Mock private FeatureFlags mFeatureFlags;
 
     @Spy Ringer.VibrationEffectProxy spyVibrationEffectProxy;
 
@@ -110,21 +132,28 @@
     @Before
     public void setUp() throws Exception {
         super.setUp();
-        mContext = mComponentContextFixture.getTestDouble().getApplicationContext();
+        mContext = spy(mComponentContextFixture.getTestDouble().getApplicationContext());
+        when(mFeatureFlags.telecomResolveHiddenDependencies()).thenReturn(true);
         doReturn(URI_VIBRATION_EFFECT).when(spyVibrationEffectProxy).get(any(), any());
-        when(mockPlayerFactory.createPlayer(anyInt())).thenReturn(mockTonePlayer);
+        when(mockPlayerFactory.createPlayer(any(Call.class), anyInt())).thenReturn(mockTonePlayer);
         mockAudioManager = mContext.getSystemService(AudioManager.class);
         when(mockAudioManager.getRingerMode()).thenReturn(AudioManager.RINGER_MODE_NORMAL);
+        when(mockVibrator.getInfo()).thenReturn(mockVibratorInfo);
         when(mockSystemSettingsUtil.isHapticPlaybackSupported(any(Context.class)))
                 .thenAnswer((invocation) -> mIsHapticPlaybackSupported);
         mockNotificationManager =mContext.getSystemService(NotificationManager.class);
         when(mockTonePlayer.startTone()).thenReturn(true);
-        when(mockNotificationManager.matchesCallFilter(any(Bundle.class))).thenReturn(true);
+        when(mockNotificationManager.matchesCallFilter(any(Uri.class))).thenReturn(true);
         when(mockRingtoneFactory.hasHapticChannels(any(Ringtone.class))).thenReturn(false);
         when(mockCall1.getState()).thenReturn(CallState.RINGING);
         when(mockCall2.getState()).thenReturn(CallState.RINGING);
         when(mockCall1.getAssociatedUser()).thenReturn(PA_HANDLE.getUserHandle());
         when(mockCall2.getAssociatedUser()).thenReturn(PA_HANDLE.getUserHandle());
+        when(mockCall1.getTargetPhoneAccount()).thenReturn(PA_HANDLE);
+        when(mockCall2.getTargetPhoneAccount()).thenReturn(PA_HANDLE);
+        // Set BT active state in tests to ensure that we do not end up blocking tests for 1 sec
+        // waiting for BT to connect in unit tests by default.
+        asyncRingtonePlayer.updateBtActiveState(true);
 
         createRingerUnderTest();
     }
@@ -136,7 +165,8 @@
     private void createRingerUnderTest() {
         mRingerUnderTest = new Ringer(mockPlayerFactory, mContext, mockSystemSettingsUtil,
                 asyncRingtonePlayer, mockRingtoneFactory, mockVibrator, spyVibrationEffectProxy,
-                mockInCallController, mockNotificationManager, mockAccessibilityManagerAdapter);
+                mockInCallController, mockNotificationManager, mockAccessibilityManagerAdapter,
+                mFeatureFlags);
         // This future is used to wait for AsyncRingtonePlayer to finish its part.
         mRingerUnderTest.setBlockOnRingingFuture(mRingCompletionFuture);
     }
@@ -149,6 +179,151 @@
 
     @SmallTest
     @Test
+    public void testSimpleVibrationPrecedesValidSupportedDefaultRingVibrationOverride()
+            throws Exception {
+        when(mFeatureFlags.useDeviceProvidedSerializedRingerVibration()).thenReturn(true);
+        mockVibrationResourceValues(
+                """
+                    <vibration-effect>
+                        <predefined-effect name="click"/>
+                    </vibration-effect>
+                """,
+                /* useSimpleVibration= */ true);
+        when(mockVibratorInfo.areVibrationFeaturesSupported(any())).thenReturn(true);
+
+        createRingerUnderTest();
+
+        assertEquals(EXPECTED_SIMPLE_VIBRATION_PATTERN, mRingerUnderTest.mDefaultVibrationEffect);
+    }
+
+    @SmallTest
+    @Test
+    public void testDefaultRingVibrationOverrideNotUsedWhenFeatureIsDisabled()
+            throws Exception {
+        when(mFeatureFlags.useDeviceProvidedSerializedRingerVibration()).thenReturn(false);
+        mockVibrationResourceValues(
+                """
+                    <vibration-effect>
+                        <waveform-effect>
+                            <waveform-entry durationMs="100" amplitude="0"/>
+                            <repeating>
+                                <waveform-entry durationMs="500" amplitude="default"/>
+                                <waveform-entry durationMs="700" amplitude="0"/>
+                            </repeating>
+                        </waveform-effect>
+                    </vibration-effect>
+                """,
+                /* useSimpleVibration= */ false);
+        when(mockVibratorInfo.areVibrationFeaturesSupported(any())).thenReturn(true);
+
+        createRingerUnderTest();
+
+        assertEquals(EXPECTED_PULSE_VIBRATION_PATTERN, mRingerUnderTest.mDefaultVibrationEffect);
+    }
+
+    @SmallTest
+    @Test
+    public void testValidSupportedRepeatingDefaultRingVibrationOverride() throws Exception {
+        when(mFeatureFlags.useDeviceProvidedSerializedRingerVibration()).thenReturn(true);
+        mockVibrationResourceValues(
+                """
+                    <vibration-effect>
+                        <waveform-effect>
+                            <waveform-entry durationMs="100" amplitude="0"/>
+                            <repeating>
+                                <waveform-entry durationMs="500" amplitude="default"/>
+                                <waveform-entry durationMs="700" amplitude="0"/>
+                            </repeating>
+                        </waveform-effect>
+                    </vibration-effect>
+                """,
+                /* useSimpleVibration= */ false);
+        when(mockVibratorInfo.areVibrationFeaturesSupported(any())).thenReturn(true);
+
+        createRingerUnderTest();
+
+        assertEquals(
+                VibrationEffect.createWaveform(new long[]{100, 500, 700}, /* repeat= */ 1),
+                mRingerUnderTest.mDefaultVibrationEffect);
+    }
+
+    @SmallTest
+    @Test
+    public void testValidSupportedNonRepeatingDefaultRingVibrationOverride() throws Exception {
+        when(mFeatureFlags.useDeviceProvidedSerializedRingerVibration()).thenReturn(true);
+        mockVibrationResourceValues(
+                """
+                    <vibration-effect>
+                        <predefined-effect name="click"/>
+                    </vibration-effect>
+                """,
+                /* useSimpleVibration= */ false);
+        when(mockVibratorInfo.areVibrationFeaturesSupported(any())).thenReturn(true);
+
+        createRingerUnderTest();
+
+        assertEquals(
+                VibrationEffect
+                        .startComposition()
+                        .repeatEffectIndefinitely(
+                                VibrationEffect
+                                        .startComposition()
+                                        .addEffect(VibrationEffect.createPredefined(EFFECT_CLICK))
+                                        .addOffDuration(Duration.ofSeconds(1))
+                                        .compose()
+                        )
+                        .compose(),
+                mRingerUnderTest.mDefaultVibrationEffect);
+    }
+
+    @SmallTest
+    @Test
+    public void testValidButUnsupportedDefaultRingVibrationOverride() throws Exception {
+        when(mFeatureFlags.useDeviceProvidedSerializedRingerVibration()).thenReturn(true);
+        mockVibrationResourceValues(
+                """
+                    <vibration-effect>
+                        <predefined-effect name="click"/>
+                    </vibration-effect>
+                """,
+                /* useSimpleVibration= */ false);
+        when(mockVibratorInfo.areVibrationFeaturesSupported(
+                eq(VibrationEffect.createPredefined(EFFECT_CLICK)))).thenReturn(false);
+
+        createRingerUnderTest();
+
+        assertEquals(EXPECTED_SIMPLE_VIBRATION_PATTERN, mRingerUnderTest.mDefaultVibrationEffect);
+    }
+
+    @SmallTest
+    @Test
+    public void testInvalidDefaultRingVibrationOverride() throws Exception {
+        when(mFeatureFlags.useDeviceProvidedSerializedRingerVibration()).thenReturn(true);
+        mockVibrationResourceValues(
+                /* defaultVibrationContent= */ "bad serialization",
+                /* useSimpleVibration= */ false);
+        when(mockVibratorInfo.areVibrationFeaturesSupported(any())).thenReturn(true);
+
+        createRingerUnderTest();
+
+        assertEquals(EXPECTED_SIMPLE_VIBRATION_PATTERN, mRingerUnderTest.mDefaultVibrationEffect);
+    }
+
+    @SmallTest
+    @Test
+    public void testEmptyDefaultRingVibrationOverride() throws Exception {
+        when(mFeatureFlags.useDeviceProvidedSerializedRingerVibration()).thenReturn(true);
+        mockVibrationResourceValues(
+                /* defaultVibrationContent= */ "", /* useSimpleVibration= */ false);
+        when(mockVibratorInfo.areVibrationFeaturesSupported(any())).thenReturn(true);
+
+        createRingerUnderTest();
+
+        assertEquals(EXPECTED_SIMPLE_VIBRATION_PATTERN, mRingerUnderTest.mDefaultVibrationEffect);
+    }
+
+    @SmallTest
+    @Test
     public void testNoActionInTheaterMode() throws Exception {
         // Start call waiting to make sure that it doesn't stop when we start ringing
         mRingerUnderTest.startCallWaiting(mockCall1);
@@ -227,7 +402,7 @@
     @SmallTest
     @Test
     public void testCallWaitingButNoRingForSpecificContacts() throws Exception {
-        when(mockNotificationManager.matchesCallFilter(any(Bundle.class))).thenReturn(false);
+        when(mockNotificationManager.matchesCallFilter(any(Uri.class))).thenReturn(false);
         // Start call waiting to make sure that it does stop when we start ringing
         mRingerUnderTest.startCallWaiting(mockCall1);
         verify(mockTonePlayer).startTone();
@@ -434,6 +609,48 @@
         verify(mockRingtone).play();
     }
 
+    @SmallTest
+    @Test
+    public void testDelayRingerForBtHfpDevices() throws Exception {
+        asyncRingtonePlayer.updateBtActiveState(false);
+        Ringtone mockRingtone = ensureRingtoneMocked();
+
+        ensureRingerIsAudible();
+        assertTrue(mRingerUnderTest.startRinging(mockCall1, true));
+        assertTrue(mRingerUnderTest.isRinging());
+        // We should not have the ringtone play until BT moves active
+        verify(mockRingtone, never()).play();
+
+        asyncRingtonePlayer.updateBtActiveState(true);
+        mRingCompletionFuture.get();
+        verify(mockRingtoneFactory, times(1))
+                .getRingtone(any(Call.class), nullable(VolumeShaper.Configuration.class),
+                        anyBoolean());
+        verifyNoMoreInteractions(mockRingtoneFactory);
+        verify(mockRingtone).play();
+
+        mRingerUnderTest.stopRinging();
+        verify(mockRingtone, timeout(1000/*ms*/)).stop();
+        assertFalse(mRingerUnderTest.isRinging());
+    }
+
+    @SmallTest
+    @Test
+    public void testUnblockRingerForStopCommand() throws Exception {
+        asyncRingtonePlayer.updateBtActiveState(false);
+        Ringtone mockRingtone = ensureRingtoneMocked();
+
+        ensureRingerIsAudible();
+        assertTrue(mRingerUnderTest.startRinging(mockCall1, true));
+        // We should not have the ringtone play until BT moves active
+        verify(mockRingtone, never()).play();
+
+        // We are not setting BT active, but calling stop ringing while the other thread is waiting
+        // for BT active should also unblock it.
+        mRingerUnderTest.stopRinging();
+        verify(mockRingtone, timeout(1000/*ms*/)).stop();
+    }
+
     /**
      * test shouldRingForContact will suppress the incoming call if matchesCallFilter returns
      * false (meaning DND is ON and the caller cannot bypass the settings)
@@ -446,7 +663,7 @@
         when(mContext.getSystemService(NotificationManager.class)).thenReturn(
                 mockNotificationManager);
         // suppress the call
-        when(mockNotificationManager.matchesCallFilter(any(Bundle.class))).thenReturn(false);
+        when(mockNotificationManager.matchesCallFilter(any(Uri.class))).thenReturn(false);
 
         // run the method under test
         assertFalse(mRingerUnderTest.shouldRingForContact(mockCall1));
@@ -455,7 +672,7 @@
         // verify we never set the call object and matchesCallFilter is called
         verify(mockCall1, never()).setCallIsSuppressedByDoNotDisturb(true);
         verify(mockNotificationManager, times(1))
-                .matchesCallFilter(any(Bundle.class));
+                .matchesCallFilter(any(Uri.class));
     }
 
     /**
@@ -468,7 +685,6 @@
         when(mockCall1.wasDndCheckComputedForCall()).thenReturn(false);
         when(mockCall1.getHandle()).thenReturn(Uri.parse(""));
         // alert the user of the call
-        when(mockNotificationManager.matchesCallFilter(any(Bundle.class))).thenReturn(true);
 
         // run the method under test
         assertTrue(mRingerUnderTest.shouldRingForContact(mockCall1));
@@ -477,7 +693,7 @@
         // verify we never set the call object and matchesCallFilter is called
         verify(mockCall1, never()).setCallIsSuppressedByDoNotDisturb(false);
         verify(mockNotificationManager, times(1))
-                .matchesCallFilter(any(Bundle.class));
+                .matchesCallFilter(any(Uri.class));
     }
 
     /**
@@ -493,7 +709,7 @@
         // THEN
         assertFalse(mRingerUnderTest.shouldRingForContact(mockCall1));
         verify(mockCall1, never()).setCallIsSuppressedByDoNotDisturb(false);
-        verify(mockNotificationManager, never()).matchesCallFilter(any(Bundle.class));
+        verify(mockNotificationManager, never()).matchesCallFilter(any(Uri.class));
     }
 
     @Test
@@ -503,7 +719,7 @@
         mRingerUnderTest.startCallWaiting(mockCall1);
         when(mockCall2.wasDndCheckComputedForCall()).thenReturn(false);
         when(mockCall2.getHandle()).thenReturn(Uri.parse(""));
-        when(mockNotificationManager.matchesCallFilter(any(Bundle.class))).thenReturn(false);
+        when(mockNotificationManager.matchesCallFilter(any(Uri.class))).thenReturn(false);
 
         assertFalse(mRingerUnderTest.shouldRingForContact(mockCall2));
         assertFalse(startRingingAndWaitForAsync(mockCall2, false));
@@ -518,7 +734,6 @@
         mRingerUnderTest.startCallWaiting(mockCall1);
         when(mockCall2.wasDndCheckComputedForCall()).thenReturn(false);
         when(mockCall2.getHandle()).thenReturn(Uri.parse(""));
-        when(mockNotificationManager.matchesCallFilter(any(Bundle.class))).thenReturn(true);
 
         assertTrue(mRingerUnderTest.shouldRingForContact(mockCall2));
         assertTrue(startRingingAndWaitForAsync(mockCall2, false));
@@ -545,7 +760,6 @@
         mRingerUnderTest.startCallWaiting(mockCall1);
         when(mockCall2.wasDndCheckComputedForCall()).thenReturn(false);
         when(mockCall2.getHandle()).thenReturn(Uri.parse(""));
-        when(mockNotificationManager.matchesCallFilter(any(Bundle.class))).thenReturn(true);
 
         assertTrue(mRingerUnderTest.shouldRingForContact(mockCall2));
         assertTrue(mRingerUnderTest.startRinging(mockCall2, false));
@@ -624,4 +838,13 @@
         when(mockRingtoneFactory.getHapticOnlyRingtone()).thenReturn(mockRingtone);
         return mockRingtone;
     }
+
+    private void mockVibrationResourceValues(
+            String defaultVibrationContent, boolean useSimpleVibration) {
+        mComponentContextFixture.putRawResource(
+                com.android.internal.R.raw.default_ringtone_vibration_effect,
+                defaultVibrationContent);
+        mComponentContextFixture.putBooleanResource(
+                R.bool.use_simple_vibration_pattern, useSimpleVibration);
+    }
 }
diff --git a/tests/src/com/android/server/telecom/tests/SessionManagerTest.java b/tests/src/com/android/server/telecom/tests/SessionManagerTest.java
index cf84b7c..3e82eac 100644
--- a/tests/src/com/android/server/telecom/tests/SessionManagerTest.java
+++ b/tests/src/com/android/server/telecom/tests/SessionManagerTest.java
@@ -24,7 +24,8 @@
 
 import android.telecom.Logging.Session;
 import android.telecom.Logging.SessionManager;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import org.junit.After;
 import org.junit.Before;
diff --git a/tests/src/com/android/server/telecom/tests/SessionTest.java b/tests/src/com/android/server/telecom/tests/SessionTest.java
index f38618c..5378596 100644
--- a/tests/src/com/android/server/telecom/tests/SessionTest.java
+++ b/tests/src/com/android/server/telecom/tests/SessionTest.java
@@ -20,7 +20,8 @@
 
 import android.telecom.Log;
 import android.telecom.Logging.Session;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import org.junit.After;
 import org.junit.Before;
diff --git a/tests/src/com/android/server/telecom/tests/SystemStateHelperTest.java b/tests/src/com/android/server/telecom/tests/SystemStateHelperTest.java
index dc7d1fd..169d580 100644
--- a/tests/src/com/android/server/telecom/tests/SystemStateHelperTest.java
+++ b/tests/src/com/android/server/telecom/tests/SystemStateHelperTest.java
@@ -24,7 +24,7 @@
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.ArgumentMatchers.isNull;
-import static org.mockito.Matchers.any;
+import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.Mockito.atLeastOnce;
 import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.doReturn;
@@ -44,7 +44,8 @@
 import android.hardware.SensorEventListener;
 import android.hardware.SensorManager;
 import android.net.Uri;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.SystemStateHelper;
 import com.android.server.telecom.SystemStateHelper.SystemStateListener;
diff --git a/tests/src/com/android/server/telecom/tests/TelecomServiceImplTest.java b/tests/src/com/android/server/telecom/tests/TelecomServiceImplTest.java
index 8bc1f2a..24b23af 100644
--- a/tests/src/com/android/server/telecom/tests/TelecomServiceImplTest.java
+++ b/tests/src/com/android/server/telecom/tests/TelecomServiceImplTest.java
@@ -23,6 +23,36 @@
 import static android.Manifest.permission.READ_PHONE_NUMBERS;
 import static android.Manifest.permission.READ_PHONE_STATE;
 import static android.Manifest.permission.READ_PRIVILEGED_PHONE_STATE;
+import static android.Manifest.permission.READ_SMS;
+import static android.Manifest.permission.REGISTER_SIM_SUBSCRIPTION;
+import static android.Manifest.permission.WRITE_SECURE_SETTINGS;
+
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertNotNull;
+import static org.junit.Assert.assertNull;
+import static org.junit.Assert.assertThrows;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+import static org.mockito.ArgumentMatchers.nullable;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyBoolean;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.argThat;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.ArgumentMatchers.isNull;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.doThrow;
+import static org.mockito.Mockito.isA;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.spy;
+import static org.mockito.Mockito.times;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
 
 import android.Manifest;
 import android.app.ActivityManager;
@@ -48,7 +78,8 @@
 import android.telecom.TelecomManager;
 import android.telecom.VideoProfile;
 import android.telephony.TelephonyManager;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.internal.telecom.ICallEventCallback;
 import com.android.internal.telecom.ITelecomService;
@@ -58,11 +89,13 @@
 import com.android.server.telecom.CallState;
 import com.android.server.telecom.CallsManager;
 import com.android.server.telecom.DefaultDialerCache;
+import com.android.server.telecom.InCallController;
 import com.android.server.telecom.PhoneAccountRegistrar;
 import com.android.server.telecom.TelecomServiceImpl;
 import com.android.server.telecom.TelecomSystem;
 import com.android.server.telecom.components.UserCallIntentProcessor;
 import com.android.server.telecom.components.UserCallIntentProcessorFactory;
+import com.android.server.telecom.flags.FeatureFlags;
 import com.android.server.telecom.voip.IncomingCallTransaction;
 import com.android.server.telecom.voip.OutgoingCallTransaction;
 import com.android.server.telecom.voip.TransactionManager;
@@ -76,40 +109,15 @@
 import org.mockito.ArgumentMatcher;
 import org.mockito.Mock;
 
+import java.lang.reflect.Method;
 import java.util.Collection;
+import java.util.Collections;
+import java.util.HashSet;
 import java.util.List;
+import java.util.Set;
 import java.util.concurrent.Executor;
 import java.util.function.IntConsumer;
 
-import static android.Manifest.permission.READ_SMS;
-import static android.Manifest.permission.REGISTER_SIM_SUBSCRIPTION;
-import static android.Manifest.permission.WRITE_SECURE_SETTINGS;
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertNull;
-import static org.junit.Assert.assertThrows;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
-import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.anyBoolean;
-import static org.mockito.Matchers.anyInt;
-import static org.mockito.Matchers.anyString;
-import static org.mockito.Matchers.argThat;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Matchers.isNull;
-import static org.mockito.Mockito.doAnswer;
-import static org.mockito.Mockito.doNothing;
-import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.doThrow;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.never;
-import static org.mockito.Mockito.times;
-import static org.mockito.Mockito.spy;
-import static org.mockito.Mockito.verify;
-import static org.mockito.Mockito.isA;
-import static org.mockito.Mockito.when;
-
 @RunWith(JUnit4.class)
 public class TelecomServiceImplTest extends TelecomTestCase {
 
@@ -122,7 +130,7 @@
     public static class CallIntentProcessAdapterFake implements CallIntentProcessor.Adapter {
         @Override
         public void processOutgoingCallIntent(Context context, CallsManager callsManager,
-                Intent intent, String callingPackage) {
+                Intent intent, String callingPackage, FeatureFlags flags) {
 
         }
 
@@ -192,6 +200,10 @@
     @Mock private ICallEventCallback mICallEventCallback;
     @Mock private TransactionManager mTransactionManager;
     @Mock private AnomalyReporterAdapter mAnomalyReporterAdapter;
+    @Mock private FeatureFlags mFeatureFlags;
+    @Mock private com.android.internal.telephony.flags.FeatureFlags mTelephonyFeatureFlags;
+
+    @Mock private InCallController mInCallController;
 
     private final TelecomSystem.SyncRoot mLock = new TelecomSystem.SyncRoot() { };
 
@@ -219,6 +231,7 @@
 
         doReturn(mContext).when(mContext).getApplicationContext();
         doReturn(mContext).when(mContext).createContextAsUser(any(UserHandle.class), anyInt());
+        when(mFakeCallsManager.getInCallController()).thenReturn(mInCallController);
         doNothing().when(mContext).sendBroadcastAsUser(any(Intent.class), any(UserHandle.class),
                 anyString());
         when(mContext.checkCallingOrSelfPermission(Manifest.permission.INTERACT_ACROSS_USERS))
@@ -242,6 +255,8 @@
                 mDefaultDialerCache,
                 mSubscriptionManagerAdapter,
                 mSettingsSecureAdapter,
+                mFeatureFlags,
+                mTelephonyFeatureFlags,
                 mLock);
         telecomServiceImpl.setTransactionManager(mTransactionManager);
         telecomServiceImpl.setAnomalyReporterAdapter(mAnomalyReporterAdapter);
@@ -260,6 +275,8 @@
 
         mPackageManager = mContext.getPackageManager();
         when(mPackageManager.getPackageUid(anyString(), eq(0))).thenReturn(Binder.getCallingUid());
+        when(mFeatureFlags.earlyBindingToIncallService()).thenReturn(true);
+        when(mTelephonyFeatureFlags.workProfileApiSplit()).thenReturn(false);
     }
 
     @Override
@@ -525,10 +542,64 @@
 
         assertEquals(fullPHList,
                 mTSIBinder.getCallCapablePhoneAccounts(
-                        true, DEFAULT_DIALER_PACKAGE, null).getList());
+                        true, DEFAULT_DIALER_PACKAGE, null, false).getList());
         assertEquals(smallPHList,
                 mTSIBinder.getCallCapablePhoneAccounts(
-                        false, DEFAULT_DIALER_PACKAGE, null).getList());
+                        false, DEFAULT_DIALER_PACKAGE, null, false).getList());
+    }
+
+    @SmallTest
+    @Test
+    public void testGetCallCapablePhoneAccountsAcrossProfiles() throws RemoteException {
+        List<PhoneAccountHandle> fullPHList = List.of(TEL_PA_HANDLE_16, SIP_PA_HANDLE_17);
+        List<PhoneAccountHandle> smallPHList = List.of(SIP_PA_HANDLE_17);
+
+        // Returns all accounts when getCallCapablePhoneAccounts is called with across user.
+        doReturn(fullPHList).when(mFakePhoneAccountRegistrar).getCallCapablePhoneAccounts(
+                nullable(String.class), anyBoolean(), nullable(UserHandle.class), eq(true));
+        // Returns one account when getCallCapablePhoneAccounts is called without across user.
+        doReturn(smallPHList).when(mFakePhoneAccountRegistrar).getCallCapablePhoneAccounts(
+                nullable(String.class), anyBoolean(), nullable(UserHandle.class), eq(false));
+        // With across user permission
+        doReturn(PackageManager.PERMISSION_GRANTED).when(mContext).checkCallingOrSelfPermission(
+                eq(Manifest.permission.INTERACT_ACROSS_USERS));
+
+        assertEquals(fullPHList,
+                mTSIBinder.getCallCapablePhoneAccounts(
+                        true, DEFAULT_DIALER_PACKAGE, null, false).getList());
+
+        // Without across user permission
+        doReturn(PackageManager.PERMISSION_DENIED).when(mContext).checkCallingOrSelfPermission(
+                eq(Manifest.permission.INTERACT_ACROSS_USERS));
+
+        assertEquals(smallPHList,
+                mTSIBinder.getCallCapablePhoneAccounts(
+                        true, DEFAULT_DIALER_PACKAGE, null, false).getList());
+
+        // Enabled the feature flag of the work profile split mode
+        when(mTelephonyFeatureFlags.workProfileApiSplit()).thenReturn(true);
+
+        // With across user permission
+        doReturn(PackageManager.PERMISSION_GRANTED).when(mContext).checkCallingOrSelfPermission(
+                eq(Manifest.permission.INTERACT_ACROSS_PROFILES));
+
+        assertEquals(fullPHList,
+                mTSIBinder.getCallCapablePhoneAccounts(
+                        true, DEFAULT_DIALER_PACKAGE, null, true).getList());
+        assertEquals(smallPHList,
+                mTSIBinder.getCallCapablePhoneAccounts(
+                        true, DEFAULT_DIALER_PACKAGE, null, false).getList());
+
+        // Without across user permission
+        doReturn(PackageManager.PERMISSION_DENIED).when(mContext).checkCallingOrSelfPermission(
+                eq(Manifest.permission.INTERACT_ACROSS_PROFILES));
+
+        assertEquals(smallPHList,
+                mTSIBinder.getCallCapablePhoneAccounts(
+                        true, DEFAULT_DIALER_PACKAGE, null, true).getList());
+        assertEquals(smallPHList,
+                mTSIBinder.getCallCapablePhoneAccounts(
+                        true, DEFAULT_DIALER_PACKAGE, null, false).getList());
     }
 
     @SmallTest
@@ -540,7 +611,7 @@
                 argThat(new AnyStringIn(enforcedPermissions)), anyString());
 
         assertThrows(SecurityException.class,
-                () -> mTSIBinder.getCallCapablePhoneAccounts(true, "", null));
+                () -> mTSIBinder.getCallCapablePhoneAccounts(true, "", null, false));
     }
 
     @SmallTest
@@ -778,6 +849,62 @@
 
     @SmallTest
     @Test
+    public void testRegisterPhoneAccountSimultaneousCallingVerification() throws RemoteException {
+        doReturn(true).when(mTelephonyFeatureFlags).simultaneousCallingIndications();
+        doReturn(PackageManager.PERMISSION_GRANTED)
+                .when(mContext).checkCallingOrSelfPermission(MODIFY_PHONE_STATE);
+        String packageNameToUse = "com.android.officialpackage";
+        PhoneAccountHandle phHandle = new PhoneAccountHandle(new ComponentName(
+                packageNameToUse, "cs"), "test", Binder.getCallingUserHandle());
+        PhoneAccountHandle phAllowedRestriction = new PhoneAccountHandle(new ComponentName(
+                packageNameToUse, "cs"), "test2", Binder.getCallingUserHandle());
+
+        PhoneAccount phoneAccountEmptyRestriction = makePhoneAccount(phHandle)
+                .setSimultaneousCallingRestriction(Collections.emptySet())
+                .build();
+        try {
+            mTSIBinder.registerPhoneAccount(phoneAccountEmptyRestriction, CALLING_PACKAGE);
+            verify(mFakePhoneAccountRegistrar).registerPhoneAccount(phoneAccountEmptyRestriction);
+        } catch (SecurityException e) {
+            fail("registerPhoneAccount must not throw a SecurityException if there is a "
+                    + " restriction registered with the same package name.");
+        }
+
+        Set<PhoneAccountHandle> restriction = new HashSet<>(3);
+        restriction.add(phAllowedRestriction);
+        PhoneAccount phoneAccount = makePhoneAccount(phHandle)
+                .setSimultaneousCallingRestriction(restriction)
+                .build();
+
+        try {
+            mTSIBinder.registerPhoneAccount(phoneAccount, CALLING_PACKAGE);
+            verify(mFakePhoneAccountRegistrar).registerPhoneAccount(phoneAccount);
+        } catch (SecurityException e) {
+            fail("registerPhoneAccount must not throw a SecurityException if there is a "
+                    + " restriction registered with the same package name.");
+        }
+
+        String anotherPackageName = "com.android.anotherpackage";
+        PhoneAccountHandle phDisallowedRestriction = new PhoneAccountHandle(new ComponentName(
+                anotherPackageName, "cs"), "test", Binder.getCallingUserHandle());
+        restriction.add(phDisallowedRestriction);
+        phoneAccount = makePhoneAccount(phHandle)
+                .setSimultaneousCallingRestriction(restriction)
+                .build();
+
+        try {
+            mTSIBinder.registerPhoneAccount(phoneAccount, CALLING_PACKAGE);
+            // there should not be another call to registerPhoneAccount
+            verify(mFakePhoneAccountRegistrar, times(1)).registerPhoneAccount(phoneAccount);
+            fail("registerPhoneAccount must throw a SecurityException if there is a "
+                    + " restriction registered with a different package name.");
+        } catch (SecurityException e) {
+            //expected
+        }
+    }
+
+    @SmallTest
+    @Test
     public void testRegisterPhoneAccountWithoutPermissionAnomalyReported() throws RemoteException {
         PhoneAccountHandle handle = new PhoneAccountHandle(
                 new ComponentName("package", "cs"), "test", Binder.getCallingUserHandle());
@@ -1040,6 +1167,7 @@
 
         verify(mFakePhoneAccountRegistrar).getPhoneAccount(
                 TEL_PA_HANDLE_16, TEL_PA_HANDLE_16.getUserHandle());
+        verify(mInCallController, never()).bindToServices(any());
         addCallTestHelper(TelecomManager.ACTION_INCOMING_CALL,
                 CallIntentProcessor.KEY_IS_INCOMING_CALL, extras,
                 TEL_PA_HANDLE_16, false);
@@ -1047,6 +1175,81 @@
 
     @SmallTest
     @Test
+    public void testAddNewIncomingFlagDisabledNoEarlyBinding() throws Exception {
+        when(mFeatureFlags.earlyBindingToIncallService()).thenReturn(false);
+        PhoneAccount phoneAccount = makeSkipCallFilteringPhoneAccount(TEL_PA_HANDLE_16).build();
+        phoneAccount.setIsEnabled(true);
+        doReturn(phoneAccount).when(mFakePhoneAccountRegistrar).getPhoneAccount(
+                eq(TEL_PA_HANDLE_16), any(UserHandle.class));
+        doReturn(phoneAccount).when(mFakePhoneAccountRegistrar).getPhoneAccountUnchecked(
+                eq(TEL_PA_HANDLE_16));
+        doNothing().when(mAppOpsManager).checkPackage(anyInt(), anyString());
+        when(mPackageManager.hasSystemFeature(PackageManager.FEATURE_WATCH)).thenReturn(true);
+        Bundle extras = createSampleExtras();
+
+        mTSIBinder.addNewIncomingCall(TEL_PA_HANDLE_16, extras, CALLING_PACKAGE);
+
+        verify(mInCallController, never()).bindToServices(null);
+    }
+
+    @SmallTest
+    @Test
+    public void testAddNewIncomingCallEarlyBindingForNoCallFilterCalls() throws Exception {
+        PhoneAccount phoneAccount = makeSkipCallFilteringPhoneAccount(TEL_PA_HANDLE_16).build();
+        phoneAccount.setIsEnabled(true);
+        doReturn(phoneAccount).when(mFakePhoneAccountRegistrar).getPhoneAccount(
+                eq(TEL_PA_HANDLE_16), any(UserHandle.class));
+        doReturn(phoneAccount).when(mFakePhoneAccountRegistrar).getPhoneAccountUnchecked(
+                eq(TEL_PA_HANDLE_16));
+        doNothing().when(mAppOpsManager).checkPackage(anyInt(), anyString());
+        when(mPackageManager.hasSystemFeature(PackageManager.FEATURE_WATCH)).thenReturn(true);
+        Bundle extras = createSampleExtras();
+
+        mTSIBinder.addNewIncomingCall(TEL_PA_HANDLE_16, extras, CALLING_PACKAGE);
+
+        verify(mInCallController).bindToServices(null);
+    }
+
+    @SmallTest
+    @Test
+    public void testAddNewIncomingCallEarlyBindingNotEnableForNonWatchDevices() throws Exception {
+        PhoneAccount phoneAccount = makeSkipCallFilteringPhoneAccount(TEL_PA_HANDLE_16).build();
+        phoneAccount.setIsEnabled(true);
+        doReturn(phoneAccount).when(mFakePhoneAccountRegistrar).getPhoneAccount(
+                eq(TEL_PA_HANDLE_16), any(UserHandle.class));
+        doReturn(phoneAccount).when(mFakePhoneAccountRegistrar).getPhoneAccountUnchecked(
+                eq(TEL_PA_HANDLE_16));
+        doNothing().when(mAppOpsManager).checkPackage(anyInt(), anyString());
+        when(mPackageManager.hasSystemFeature(PackageManager.FEATURE_WATCH)).thenReturn(false);
+        Bundle extras = createSampleExtras();
+
+        mTSIBinder.addNewIncomingCall(TEL_PA_HANDLE_16, extras, CALLING_PACKAGE);
+
+        verify(mInCallController, never()).bindToServices(null);
+    }
+
+    @SmallTest
+    @Test
+    public void testAddNewIncomingCallEarlyBindingNotEnableForPhoneAccountHasCallFilters()
+            throws Exception {
+        PhoneAccount phoneAccount = makePhoneAccount(TEL_PA_HANDLE_16).build();
+        phoneAccount.setIsEnabled(true);
+        doReturn(phoneAccount).when(mFakePhoneAccountRegistrar).getPhoneAccount(
+                eq(TEL_PA_HANDLE_16), any(UserHandle.class));
+        doReturn(phoneAccount).when(mFakePhoneAccountRegistrar).getPhoneAccountUnchecked(
+                eq(TEL_PA_HANDLE_16));
+        doNothing().when(mAppOpsManager).checkPackage(anyInt(), anyString());
+        when(mPackageManager.hasSystemFeature(PackageManager.FEATURE_WATCH)).thenReturn(true);
+        Bundle extras = createSampleExtras();
+
+        mTSIBinder.addNewIncomingCall(TEL_PA_HANDLE_16, extras, CALLING_PACKAGE);
+
+        verify(mInCallController, never()).bindToServices(null);
+    }
+
+
+    @SmallTest
+    @Test
     public void testAddNewIncomingCallFailure() throws Exception {
         try {
             mTSIBinder.addNewIncomingCall(TEL_PA_HANDLE_16, null, CALLING_PACKAGE);
@@ -1703,6 +1906,28 @@
         verify(mContext, never()).sendBroadcastAsUser(any(Intent.class), any(UserHandle.class));
     }
 
+    /**
+     * FeatureFlags is autogenerated code, so there could be a situation where something changes
+     * outside of Telecom control that breaks reflection. This test attempts to ensure that changes
+     * to auto-generated FeatureFlags code that breaks reflection are caught early.
+     */
+    @SmallTest
+    @Test
+    public void testFlagConfigReflectionWorks() {
+        try {
+            Method[] methods = FeatureFlags.class.getMethods();
+            for (Method m : methods) {
+                // test getting the name and invoking the flag code
+                String name = m.getName();
+                Object val = m.invoke(mFeatureFlags);
+                assertNotNull(name);
+                assertNotNull(val);
+            }
+        } catch (Exception e) {
+            fail("Reflection failed for FeatureFlags with error: " + e);
+        }
+    }
+
     @SmallTest
     @Test
     public void testIsVoicemailNumber() throws Exception {
@@ -2144,6 +2369,12 @@
         return new PhoneAccount.Builder(paHandle, "testLabel");
     }
 
+    private PhoneAccount.Builder makeSkipCallFilteringPhoneAccount(PhoneAccountHandle paHandle) {
+        Bundle extras = new Bundle();
+        extras.putBoolean(PhoneAccount.EXTRA_SKIP_CALL_FILTERING, true);
+        return new PhoneAccount.Builder(paHandle, "testLabel").setExtras(extras);
+    }
+
     private Bundle createSampleExtras() {
         Bundle extras = new Bundle();
         extras.putString("test_key", "test_value");
diff --git a/tests/src/com/android/server/telecom/tests/TelecomSystemTest.java b/tests/src/com/android/server/telecom/tests/TelecomSystemTest.java
index b962b2a..b7de84f 100644
--- a/tests/src/com/android/server/telecom/tests/TelecomSystemTest.java
+++ b/tests/src/com/android/server/telecom/tests/TelecomSystemTest.java
@@ -22,11 +22,11 @@
 import static org.junit.Assert.assertTrue;
 import static org.junit.Assert.fail;
 import static org.mockito.ArgumentMatchers.nullable;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.anyBoolean;
-import static org.mockito.Matchers.anyInt;
-import static org.mockito.Matchers.anyString;
-import static org.mockito.Matchers.eq;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyBoolean;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.doNothing;
 import static org.mockito.Mockito.doReturn;
@@ -38,6 +38,7 @@
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
+import android.annotation.Nullable;
 import android.app.AppOpsManager;
 import android.bluetooth.BluetoothManager;
 import android.content.BroadcastReceiver;
@@ -69,6 +70,7 @@
 
 import com.android.internal.telecom.IInCallAdapter;
 import com.android.server.telecom.AsyncRingtonePlayer;
+import com.android.server.telecom.CallAudioCommunicationDeviceTracker;
 import com.android.server.telecom.CallAudioManager;
 import com.android.server.telecom.CallAudioModeStateMachine;
 import com.android.server.telecom.CallAudioRouteStateMachine;
@@ -98,6 +100,7 @@
 import com.android.server.telecom.bluetooth.BluetoothRouteManager;
 import com.android.server.telecom.callfiltering.BlockedNumbersAdapter;
 import com.android.server.telecom.components.UserCallIntentProcessor;
+import com.android.server.telecom.flags.FeatureFlags;
 import com.android.server.telecom.ui.IncomingCallNotifier;
 
 import com.google.common.base.Predicate;
@@ -119,7 +122,7 @@
 /**
  * Implements mocks and functionality required to implement telecom system tests.
  */
-public class TelecomSystemTest extends TelecomTestCase {
+public class TelecomSystemTest extends TelecomTestCase{
 
     private static final String CALLING_PACKAGE = TelecomSystemTest.class.getPackageName();
     static final int TEST_POLL_INTERVAL = 10;  // milliseconds
@@ -167,7 +170,7 @@
         }
 
         @Override
-        public void showMissedCallNotification(CallInfo call) {
+        public void showMissedCallNotification(CallInfo call, @Nullable Uri uri) {
             missedCallsNotified.add(call);
         }
 
@@ -214,6 +217,10 @@
     @Mock Ringer.AccessibilityManagerAdapter mAccessibilityManagerAdapter;
     @Mock
     BlockedNumbersAdapter mBlockedNumbersAdapter;
+    @Mock
+    CallAudioCommunicationDeviceTracker mCommunicationDeviceTracker;
+    @Mock
+    FeatureFlags mFeatureFlags;
 
     final ComponentName mInCallServiceComponentNameX =
             new ComponentName(
@@ -320,6 +327,20 @@
                                     PhoneAccount.CAPABILITY_PLACE_EMERGENCY_CALLS)
                     .build();
 
+    final PhoneAccount mPhoneAccountMultiUser =
+            PhoneAccount.builder(
+                            new PhoneAccountHandle(
+                                    mConnectionServiceComponentNameA,
+                                    "id MU", UserHandle.of(12)),
+                            "Phone account service MU")
+                    .addSupportedUriScheme("tel")
+                    .setCapabilities(
+                            PhoneAccount.CAPABILITY_CALL_PROVIDER |
+                                    PhoneAccount.CAPABILITY_SIM_SUBSCRIPTION |
+                                    PhoneAccount.CAPABILITY_VIDEO_CALLING |
+                                    PhoneAccount.CAPABILITY_MULTI_USER)
+                    .build();
+
     ConnectionServiceFixture mConnectionServiceFixtureA;
     ConnectionServiceFixture mConnectionServiceFixtureB;
     Timeouts.Adapter mTimeoutsAdapter;
@@ -493,9 +514,11 @@
         when(mRoleManagerAdapter.getCallCompanionApps()).thenReturn(Collections.emptyList());
         when(mRoleManagerAdapter.getDefaultCallScreeningApp(any(UserHandle.class)))
                 .thenReturn(null);
+        when(mFeatureFlags.useRefactoredAudioRouteSwitching()).thenReturn(false);
         mTelecomSystem = new TelecomSystem(
                 mComponentContextFixture.getTestDouble(),
-                (context, phoneAccountRegistrar, defaultDialerCache, mDeviceIdleControllerAdapter)
+                (context, phoneAccountRegistrar, defaultDialerCache, mDeviceIdleControllerAdapter,
+                        mFeatureFlag)
                         -> mMissedCallNotifier,
                 mCallerInfoAsyncQueryFactoryFixture.getTestDouble(),
                 headsetMediaButtonFactory,
@@ -518,7 +541,9 @@
                             StatusBarNotifier statusBarNotifier,
                             CallAudioManager.AudioServiceFactory audioServiceFactory,
                             int earpieceControl,
-                            Executor asyncTaskExecutor) {
+                            Executor asyncTaskExecutor,
+                            CallAudioCommunicationDeviceTracker communicationDeviceTracker,
+                            FeatureFlags featureFlags) {
                         return new CallAudioRouteStateMachine(context,
                                 callsManager,
                                 bluetoothManager,
@@ -528,15 +553,20 @@
                                 // Force enable an earpiece for the end-to-end tests
                                 CallAudioRouteStateMachine.EARPIECE_FORCE_ENABLED,
                                 mHandlerThread.getLooper(),
-                                Runnable::run /* async tasks as now sync for testing! */);
+                                Runnable::run /* async tasks as now sync for testing! */,
+                                communicationDeviceTracker,
+                                featureFlags);
                     }
                 },
                 new CallAudioModeStateMachine.Factory() {
                     @Override
                     public CallAudioModeStateMachine create(SystemStateHelper systemStateHelper,
-                            AudioManager am) {
+                            AudioManager am, FeatureFlags featureFlags,
+                            CallAudioCommunicationDeviceTracker callAudioCommunicationDeviceTracker
+                    ) {
                         return new CallAudioModeStateMachine(systemStateHelper, am,
-                                mHandlerThread.getLooper());
+                                mHandlerThread.getLooper(), featureFlags,
+                                callAudioCommunicationDeviceTracker);
                     }
                 },
                 mClockProxy,
@@ -549,7 +579,9 @@
                     }
                 }, mDeviceIdleControllerAdapter, mAccessibilityManagerAdapter,
                 Runnable::run,
-                mBlockedNumbersAdapter);
+                Runnable::run,
+                mBlockedNumbersAdapter,
+                mFeatureFlags);
 
         mComponentContextFixture.setTelecomManager(new TelecomManager(
                 mComponentContextFixture.getTestDouble(),
@@ -583,6 +615,7 @@
         mTelecomSystem.getPhoneAccountRegistrar().registerPhoneAccount(mPhoneAccountB0);
         mTelecomSystem.getPhoneAccountRegistrar().registerPhoneAccount(mPhoneAccountE0);
         mTelecomSystem.getPhoneAccountRegistrar().registerPhoneAccount(mPhoneAccountE1);
+        mTelecomSystem.getPhoneAccountRegistrar().registerPhoneAccount(mPhoneAccountMultiUser);
 
         mTelecomSystem.getPhoneAccountRegistrar().setUserSelectedOutgoingPhoneAccount(
                 mPhoneAccountA0.getAccountHandle(), Process.myUserHandle());
diff --git a/tests/src/com/android/server/telecom/tests/TelecomTestCase.java b/tests/src/com/android/server/telecom/tests/TelecomTestCase.java
index 5353bc6..e8389a0 100644
--- a/tests/src/com/android/server/telecom/tests/TelecomTestCase.java
+++ b/tests/src/com/android/server/telecom/tests/TelecomTestCase.java
@@ -22,6 +22,9 @@
 
 import androidx.test.InstrumentationRegistry;
 
+import com.android.server.telecom.flags.FeatureFlags;
+
+import org.mockito.Mock;
 import org.mockito.Mockito;
 import org.mockito.MockitoAnnotations;
 
@@ -33,6 +36,8 @@
 public abstract class TelecomTestCase {
     protected static final String TESTING_TAG = "Telecom-TEST";
     protected Context mContext;
+    @Mock
+    FeatureFlags mFeatureFlags;
 
     MockitoHelper mMockitoHelper = new MockitoHelper();
     ComponentContextFixture mComponentContextFixture;
@@ -42,11 +47,12 @@
         Log.setIsExtendedLoggingEnabled(true);
         Log.setUnitTestingEnabled(true);
         mMockitoHelper.setUp(InstrumentationRegistry.getContext(), getClass());
-        mComponentContextFixture = new ComponentContextFixture();
+        MockitoAnnotations.initMocks(this);
+
+        mComponentContextFixture = new ComponentContextFixture(mFeatureFlags);
         mContext = mComponentContextFixture.getTestDouble().getApplicationContext();
         Log.setSessionContext(mComponentContextFixture.getTestDouble().getApplicationContext());
         Log.getSessionManager().mCleanStaleSessions = null;
-        MockitoAnnotations.initMocks(this);
     }
 
     public void tearDown() throws Exception {
diff --git a/tests/src/com/android/server/telecom/tests/TransactionTests.java b/tests/src/com/android/server/telecom/tests/TransactionTests.java
index 3fc87a9..e58c6c4 100644
--- a/tests/src/com/android/server/telecom/tests/TransactionTests.java
+++ b/tests/src/com/android/server/telecom/tests/TransactionTests.java
@@ -16,7 +16,11 @@
 
 package com.android.server.telecom.tests;
 
+import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.atLeastOnce;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
@@ -39,11 +43,15 @@
 import android.telecom.DisconnectCause;
 import android.telecom.PhoneAccountHandle;
 
+import androidx.test.filters.SmallTest;
+
 import com.android.server.telecom.Call;
 import com.android.server.telecom.CallState;
 import com.android.server.telecom.CallerInfoLookupHelper;
 import com.android.server.telecom.CallsManager;
 import com.android.server.telecom.ClockProxy;
+import com.android.server.telecom.ConnectionServiceWrapper;
+import com.android.server.telecom.flags.FeatureFlags;
 import com.android.server.telecom.PhoneNumberUtilsAdapter;
 import com.android.server.telecom.TelecomSystem;
 import com.android.server.telecom.ui.ToastFactory;
@@ -53,6 +61,8 @@
 import com.android.server.telecom.voip.OutgoingCallTransaction;
 import com.android.server.telecom.voip.MaybeHoldCallForNewCallTransaction;
 import com.android.server.telecom.voip.RequestNewActiveCallTransaction;
+import com.android.server.telecom.voip.VerifyCallStateChangeTransaction;
+import com.android.server.telecom.voip.VoipCallTransactionResult;
 
 import org.junit.After;
 import org.junit.Before;
@@ -62,6 +72,11 @@
 import org.mockito.Mockito;
 import org.mockito.MockitoAnnotations;
 
+import java.util.concurrent.CompletableFuture;
+import java.util.concurrent.ExecutionException;
+import java.util.concurrent.TimeUnit;
+import java.util.concurrent.TimeoutException;
+
 
 public class TransactionTests extends TelecomTestCase {
 
@@ -250,6 +265,65 @@
                         isA(Boolean.class));
     }
 
+    /**
+     * This test verifies if the ConnectionService call is NOT transitioned to the desired call
+     * state (within timeout period), Telecom will disconnect the call.
+     */
+    @SmallTest
+    @Test
+    public void testCallStateChangeTimesOut()
+            throws ExecutionException, InterruptedException, TimeoutException {
+        when(mFeatureFlags.transactionalCsVerifier()).thenReturn(true);
+        VerifyCallStateChangeTransaction t = new VerifyCallStateChangeTransaction(mCallsManager,
+                mMockCall1, CallState.ON_HOLD, true);
+        // WHEN
+        setupHoldableCall();
+
+        // simulate the transaction being processed and the CompletableFuture timing out
+        t.processTransaction(null);
+        CompletableFuture<Integer> timeoutFuture = t.getCallStateOrTimeoutResult();
+        timeoutFuture.complete(VerifyCallStateChangeTransaction.FAILURE_CODE);
+
+        // THEN
+        verify(mMockCall1, times(1)).addCallStateListener(t.getCallStateListenerImpl());
+        assertEquals(timeoutFuture.get().intValue(), VerifyCallStateChangeTransaction.FAILURE_CODE);
+        assertEquals(VoipCallTransactionResult.RESULT_FAILED,
+                t.getTransactionResult().get(2, TimeUnit.SECONDS).getResult());
+        verify(mMockCall1, atLeastOnce()).removeCallStateListener(any());
+        verify(mCallsManager, times(1)).markCallAsDisconnected(eq(mMockCall1), any());
+        verify(mCallsManager, times(1)).markCallAsRemoved(eq(mMockCall1));
+    }
+
+    /**
+     * This test verifies that when an application transitions a call to the requested state,
+     * Telecom does not disconnect the call and transaction completes successfully.
+     */
+    @SmallTest
+    @Test
+    public void testCallStateIsSuccessfullyChanged()
+            throws ExecutionException, InterruptedException, TimeoutException {
+        when(mFeatureFlags.transactionalCsVerifier()).thenReturn(true);
+        VerifyCallStateChangeTransaction t = new VerifyCallStateChangeTransaction(mCallsManager,
+                mMockCall1, CallState.ON_HOLD, true);
+        // WHEN
+        setupHoldableCall();
+
+        // simulate the transaction being processed and the setOnHold() being called / state change
+        t.processTransaction(null);
+        t.getCallStateListenerImpl().onCallStateChanged(CallState.ON_HOLD);
+        when(mMockCall1.getState()).thenReturn(CallState.ON_HOLD);
+
+        // THEN
+        verify(mMockCall1, times(1)).addCallStateListener(t.getCallStateListenerImpl());
+        assertEquals(t.getCallStateOrTimeoutResult().get().intValue(),
+                VerifyCallStateChangeTransaction.SUCCESS_CODE);
+        assertEquals(VoipCallTransactionResult.RESULT_SUCCEED,
+                t.getTransactionResult().get(2, TimeUnit.SECONDS).getResult());
+        verify(mMockCall1, atLeastOnce()).removeCallStateListener(any());
+        verify(mCallsManager, never()).markCallAsDisconnected(eq(mMockCall1), any());
+        verify(mCallsManager, never()).markCallAsRemoved(eq(mMockCall1));
+    }
+
     private Call createSpyCall(PhoneAccountHandle targetPhoneAccount, int initialState, String id) {
         when(mCallsManager.getCallerInfoLookupHelper()).thenReturn(mCallerInfoLookupHelper);
 
@@ -267,7 +341,8 @@
                 false /* shouldAttachToExistingConnection*/,
                 false /* isConference */,
                 mClockProxy,
-                mToastFactory);
+                mToastFactory,
+                mFeatureFlags);
 
         Call callSpy = Mockito.spy(call);
 
@@ -280,4 +355,12 @@
 
         return callSpy;
     }
+
+    private void setupHoldableCall(){
+        when(mMockCall1.getState()).thenReturn(CallState.ACTIVE);
+        when(mMockCall1.getConnectionServiceWrapper()).thenReturn(
+                mock(ConnectionServiceWrapper.class));
+        doNothing().when(mMockCall1).addCallStateListener(any());
+        doReturn(true).when(mMockCall1).removeCallStateListener(any());
+    }
 }
\ No newline at end of file
diff --git a/tests/src/com/android/server/telecom/tests/VideoCallTests.java b/tests/src/com/android/server/telecom/tests/VideoCallTests.java
index 84beedc..0ce70af 100644
--- a/tests/src/com/android/server/telecom/tests/VideoCallTests.java
+++ b/tests/src/com/android/server/telecom/tests/VideoCallTests.java
@@ -16,6 +16,26 @@
 
 package com.android.server.telecom.tests;
 
+import static org.junit.Assert.assertEquals;
+import static org.junit.Assert.assertFalse;
+import static org.junit.Assert.assertTrue;
+import static org.junit.Assert.fail;
+import static org.mockito.Mockito.atLeastOnce;
+import static org.mockito.Mockito.verify;
+
+import android.os.Process;
+import android.os.RemoteException;
+import android.telecom.CallAudioState;
+import android.telecom.DisconnectCause;
+import android.telecom.VideoProfile;
+
+import androidx.test.filters.LargeTest;
+import androidx.test.filters.MediumTest;
+
+import com.android.server.telecom.CallAudioModeStateMachine;
+import com.android.server.telecom.CallAudioRouteAdapter;
+import com.android.server.telecom.CallAudioRouteStateMachine;
+
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
@@ -23,26 +43,8 @@
 import org.junit.runners.JUnit4;
 import org.mockito.ArgumentCaptor;
 
-import android.os.Process;
-import android.os.RemoteException;
-import android.telecom.CallAudioState;
-import android.telecom.DisconnectCause;
-import android.telecom.VideoProfile;
-import android.test.suitebuilder.annotation.LargeTest;
-import android.test.suitebuilder.annotation.MediumTest;
-
-import com.android.server.telecom.CallAudioModeStateMachine;
-import com.android.server.telecom.CallAudioRouteStateMachine;
-
 import java.util.List;
 
-import static org.junit.Assert.assertEquals;
-import static org.junit.Assert.assertFalse;
-import static org.junit.Assert.assertTrue;
-import static org.junit.Assert.fail;
-import static org.mockito.Mockito.atLeastOnce;
-import static org.mockito.Mockito.verify;
-
 /**
  * System tests for video-specific behavior in telecom.
  * TODO: Add unit tests which ensure that auto-speakerphone does not occur when using a wired
@@ -258,13 +260,13 @@
      */
     private void verifyAudioRoute(int expectedRoute) throws Exception {
         // Capture all onCallAudioStateChanged callbacks to InCall.
-        CallAudioRouteStateMachine carsm = mTelecomSystem.getCallsManager()
-                .getCallAudioManager().getCallAudioRouteStateMachine();
+        CallAudioRouteAdapter cara = mTelecomSystem.getCallsManager()
+                .getCallAudioManager().getCallAudioRouteAdapter();
         CallAudioModeStateMachine camsm = mTelecomSystem.getCallsManager()
                 .getCallAudioManager().getCallAudioModeStateMachine();
         waitForHandlerAction(camsm.getHandler(), TEST_TIMEOUT);
         final boolean[] success = {true};
-        carsm.sendMessage(CallAudioRouteStateMachine.RUN_RUNNABLE, (Runnable) () -> {
+        cara.sendMessage(CallAudioRouteStateMachine.RUN_RUNNABLE, (Runnable) () -> {
             ArgumentCaptor<CallAudioState> callAudioStateArgumentCaptor = ArgumentCaptor.forClass(
                     CallAudioState.class);
             try {
@@ -277,7 +279,7 @@
             assertEquals(expectedRoute, changes.get(changes.size() - 1).getRoute());
             success[0] = true;
         });
-        waitForHandlerAction(carsm.getHandler(), TEST_TIMEOUT);
+        waitForHandlerAction(cara.getAdapterHandler(), TEST_TIMEOUT);
         assertTrue(success[0]);
     }
 }
diff --git a/tests/src/com/android/server/telecom/tests/VideoProfileTest.java b/tests/src/com/android/server/telecom/tests/VideoProfileTest.java
index 5ee0414..b2a1c81 100644
--- a/tests/src/com/android/server/telecom/tests/VideoProfileTest.java
+++ b/tests/src/com/android/server/telecom/tests/VideoProfileTest.java
@@ -21,7 +21,8 @@
 import static org.junit.Assert.assertTrue;
 
 import android.telecom.VideoProfile;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import org.junit.After;
 import org.junit.Before;
diff --git a/tests/src/com/android/server/telecom/tests/VideoProviderProxyTest.java b/tests/src/com/android/server/telecom/tests/VideoProviderProxyTest.java
index 2b6c260..060e3ae 100644
--- a/tests/src/com/android/server/telecom/tests/VideoProviderProxyTest.java
+++ b/tests/src/com/android/server/telecom/tests/VideoProviderProxyTest.java
@@ -26,7 +26,8 @@
 
 import android.os.IBinder;
 import android.telecom.VideoProfile;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.internal.telecom.IVideoProvider;
 import com.android.server.telecom.Analytics;
diff --git a/tests/src/com/android/server/telecom/tests/VideoProviderTest.java b/tests/src/com/android/server/telecom/tests/VideoProviderTest.java
index 597924d..56fbf72 100644
--- a/tests/src/com/android/server/telecom/tests/VideoProviderTest.java
+++ b/tests/src/com/android/server/telecom/tests/VideoProviderTest.java
@@ -16,6 +16,41 @@
 
 package com.android.server.telecom.tests;
 
+import static org.junit.Assert.assertEquals;
+import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyInt;
+import static org.mockito.ArgumentMatchers.anyLong;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.ArgumentMatchers.eq;
+import static org.mockito.Mockito.doAnswer;
+import static org.mockito.Mockito.doNothing;
+import static org.mockito.Mockito.doReturn;
+import static org.mockito.Mockito.doThrow;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.timeout;
+import static org.mockito.Mockito.verify;
+
+import android.app.AppOpsManager;
+import android.content.Context;
+import android.graphics.SurfaceTexture;
+import android.net.Uri;
+import android.os.Build;
+import android.os.UserHandle;
+import android.telecom.Connection;
+import android.telecom.Connection.VideoProvider;
+import android.telecom.InCallService;
+import android.telecom.InCallService.VideoCall;
+import android.telecom.VideoCallImpl;
+import android.telecom.VideoProfile;
+import android.telecom.VideoProfile.CameraCapabilities;
+import android.view.Surface;
+
+import androidx.test.filters.MediumTest;
+
+import com.android.server.telecom.CallsManager;
+
+import com.google.common.base.Predicate;
+
 import org.junit.After;
 import org.junit.Before;
 import org.junit.Test;
@@ -26,48 +61,10 @@
 import org.mockito.invocation.InvocationOnMock;
 import org.mockito.stubbing.Answer;
 
-import android.app.AppOpsManager;
-import android.content.Context;
-import android.graphics.SurfaceTexture;
-import android.net.Uri;
-import android.os.Build;
-import android.os.Handler;
-import android.os.Looper;
-import android.os.UserHandle;
-import android.telecom.Call;
-import android.telecom.Connection;
-import android.telecom.Connection.VideoProvider;
-import android.telecom.DisconnectCause;
-import android.telecom.InCallService;
-import android.telecom.InCallService.VideoCall;
-import android.telecom.VideoCallImpl;
-import android.telecom.VideoProfile;
-import android.telecom.VideoProfile.CameraCapabilities;
-import android.test.suitebuilder.annotation.MediumTest;
-import android.view.Surface;
-
-import com.google.common.base.Predicate;
-
 import java.util.List;
 import java.util.concurrent.CountDownLatch;
 import java.util.concurrent.TimeUnit;
 
-import static org.junit.Assert.assertEquals;
-import static org.mockito.Matchers.any;
-import static org.mockito.Matchers.anyInt;
-import static org.mockito.Matchers.anyLong;
-import static org.mockito.Matchers.anyString;
-import static org.mockito.Matchers.eq;
-import static org.mockito.Mockito.doAnswer;
-import static org.mockito.Mockito.doNothing;
-import static org.mockito.Mockito.doReturn;
-import static org.mockito.Mockito.doThrow;
-import static org.mockito.Mockito.timeout;
-import static org.mockito.Mockito.mock;
-import static org.mockito.Mockito.verify;
-
-import com.android.server.telecom.CallsManager;
-
 /**
  * Performs tests of the {@link VideoProvider} and {@link VideoCall} APIs.  Ensures that requests
  * sent from an InCallService are routed through Telecom to a VideoProvider, and that callbacks are
diff --git a/tests/src/com/android/server/telecom/tests/VoipCallMonitorTest.java b/tests/src/com/android/server/telecom/tests/VoipCallMonitorTest.java
index c66b0f7..7f7399c 100644
--- a/tests/src/com/android/server/telecom/tests/VoipCallMonitorTest.java
+++ b/tests/src/com/android/server/telecom/tests/VoipCallMonitorTest.java
@@ -16,6 +16,11 @@
 
 package com.android.server.telecom.tests;
 
+import static android.content.pm.ServiceInfo.FOREGROUND_SERVICE_TYPE_CAMERA;
+import static android.content.pm.ServiceInfo.FOREGROUND_SERVICE_TYPE_CONNECTED_DEVICE;
+import static android.content.pm.ServiceInfo.FOREGROUND_SERVICE_TYPE_MICROPHONE;
+import static android.content.pm.ServiceInfo.FOREGROUND_SERVICE_TYPE_PHONE_CALL;
+
 import static org.junit.Assert.assertEquals;
 import static org.mockito.ArgumentMatchers.any;
 import static org.mockito.ArgumentMatchers.eq;
@@ -38,7 +43,8 @@
 import android.os.UserHandle;
 import android.service.notification.StatusBarNotification;
 import android.telecom.PhoneAccountHandle;
-import android.test.suitebuilder.annotation.SmallTest;
+
+import androidx.test.filters.SmallTest;
 
 import com.android.server.telecom.Call;
 import com.android.server.telecom.CallState;
@@ -86,6 +92,31 @@
                 .thenReturn(true);
     }
 
+    /**
+     * This test ensures VoipCallMonitor is passing the correct foregroundServiceTypes when starting
+     * foreground service delegation on behalf of a client.
+     */
+    @SmallTest
+    @Test
+    public void testVerifyForegroundServiceTypesBeingPassedToActivityManager() {
+        Call call = createTestCall("testCall", mHandle1User1);
+        ArgumentCaptor<ForegroundServiceDelegationOptions> optionsCaptor =
+                ArgumentCaptor.forClass(ForegroundServiceDelegationOptions.class);
+
+        mMonitor.onCallAdded(call);
+
+        verify(mActivityManagerInternal, timeout(TIMEOUT)).startForegroundServiceDelegate(
+                 optionsCaptor.capture(), any(ServiceConnection.class));
+
+        assertEquals( FOREGROUND_SERVICE_TYPE_PHONE_CALL |
+                FOREGROUND_SERVICE_TYPE_MICROPHONE |
+                FOREGROUND_SERVICE_TYPE_CAMERA |
+                FOREGROUND_SERVICE_TYPE_CONNECTED_DEVICE,
+                optionsCaptor.getValue().mForegroundServiceTypes);
+
+        mMonitor.onCallRemoved(call);
+    }
+
     @SmallTest
     @Test
     public void testStartMonitorForOneCall() {