diff --git a/Android.bp b/Android.bp
index 68a8e39..94654a6 100644
--- a/Android.bp
+++ b/Android.bp
@@ -11,6 +11,14 @@
     out: ["com/android/server/telecom/TelecomStatsLog.java"],
 }
 
+filegroup {
+    name: "telecom-shell-commands-src",
+    srcs: [
+        "src/com/android/server/telecom/TelecomShellCommand.java",
+    ],
+    path: "src",
+}
+
 android_library {
     name: "TelecomLib",
     manifest: "AndroidManifestLib.xml",
@@ -33,7 +41,6 @@
     platform_apis: true,
 }
 
-
 // Build the Telecom service.
 android_app {
     name: "Telecom",
diff --git a/flags/Android.bp b/flags/Android.bp
index b089796..25a7a8c 100644
--- a/flags/Android.bp
+++ b/flags/Android.bp
@@ -39,6 +39,7 @@
         "telecom_bluetoothroutemanager_flags.aconfig",
         "telecom_work_profile_flags.aconfig",
         "telecom_connection_service_wrapper_flags.aconfig",
+        "telecom_remote_connection_service.aconfig",
         "telecom_profile_user_flags.aconfig",
     ],
 }
diff --git a/flags/telecom_anomaly_report_flags.aconfig b/flags/telecom_anomaly_report_flags.aconfig
index 6879d86..296b300 100644
--- a/flags/telecom_anomaly_report_flags.aconfig
+++ b/flags/telecom_anomaly_report_flags.aconfig
@@ -1,6 +1,7 @@
 package: "com.android.server.telecom.flags"
 container: "system"
 
+# OWNER=tjstuart TARGET=24Q3
 flag {
   name: "gen_anom_report_on_focus_timeout"
   namespace: "telecom"
diff --git a/flags/telecom_api_flags.aconfig b/flags/telecom_api_flags.aconfig
index c0f4cba..75efdfa 100644
--- a/flags/telecom_api_flags.aconfig
+++ b/flags/telecom_api_flags.aconfig
@@ -1,58 +1,74 @@
 package: "com.android.server.telecom.flags"
 container: "system"
 
+# OWNER=grantmenke TARGET=24Q3
 flag {
   name: "voip_app_actions_support"
+  is_exported: true
   namespace: "telecom"
   description: "When set, Telecom support for additional VOIP application actions is active."
   bug: "296934278"
 }
 
+# OWNER=grantmenke TARGET=24Q3
 flag {
   name: "call_details_id_changes"
+  is_exported: true
   namespace: "telecom"
   description: "When set, call details/extras id updates to Telecom APIs for Android V are active."
   bug: "301713560"
 }
 
-flag{
+# OWNER=kunduz TARGET=24Q2
+flag {
   name: "add_call_uri_for_missed_calls"
+  is_exported: true
   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{
+# OWNER=tjstuart TARGET=24Q3
+flag {
   name: "set_mute_state"
+  is_exported: true
   namespace: "telecom"
   description: "transactional calls need the ability to mute the call audio input"
   bug: "310669304"
 }
 
-flag{
+# OWNER=tjstuart TARGET=24Q3
+flag {
   name: "get_registered_phone_accounts"
+  is_exported: true
   namespace: "telecom"
   description: "When set, self-managed clients can get their own phone accounts"
   bug: "317132586"
 }
 
-flag{
+# OWNER=tjstuart TARGET=24Q3
+flag {
   name: "transactional_video_state"
+  is_exported: true
   namespace: "telecom"
   description: "when set, clients using transactional implementations will be able to set & get the video state"
   bug: "311265260"
 }
 
-flag{
+# OWNER=tjstuart TARGET=24Q3
+flag {
   name: "business_call_composer"
+  is_exported: true
   namespace: "telecom"
   description: "Enables enriched calling features (e.g. Business name will show for a call)"
   bug: "311688497"
   is_exported: true
 }
 
-flag{
+# OWNER=tgunn TARGET=25Q3
+flag {
   name: "get_last_known_cell_identity"
+  is_exported: true
   namespace: "telecom"
   description: "Formalizes the getLastKnownCellIdentity API that Telecom reliees on as a system api"
   bug: "327454165"
diff --git a/flags/telecom_bluetoothroutemanager_flags.aconfig b/flags/telecom_bluetoothroutemanager_flags.aconfig
index 1df1e9b..dc69dd5 100644
--- a/flags/telecom_bluetoothroutemanager_flags.aconfig
+++ b/flags/telecom_bluetoothroutemanager_flags.aconfig
@@ -1,10 +1,10 @@
 package: "com.android.server.telecom.flags"
 container: "system"
 
+# OWNER=tgunn TARGET=24Q3
 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
index de8dd27..8314376 100644
--- a/flags/telecom_broadcast_flags.aconfig
+++ b/flags/telecom_broadcast_flags.aconfig
@@ -1,6 +1,7 @@
 package: "com.android.server.telecom.flags"
 container: "system"
 
+# OWNER=tgunn TARGET=24Q3
 flag {
   name: "is_new_outgoing_call_broadcast_unblocking"
   namespace: "telecom"
diff --git a/flags/telecom_call_filtering_flags.aconfig b/flags/telecom_call_filtering_flags.aconfig
index 72f9db3..d80cfa3 100644
--- a/flags/telecom_call_filtering_flags.aconfig
+++ b/flags/telecom_call_filtering_flags.aconfig
@@ -1,6 +1,7 @@
 package: "com.android.server.telecom.flags"
 container: "system"
 
+# OWNER=qingzhong TARGET=24Q2
 flag {
   name: "skip_filter_phone_account_perform_dnd_filter"
   namespace: "telecom"
diff --git a/flags/telecom_call_flags.aconfig b/flags/telecom_call_flags.aconfig
index 27a4b22..40aa8b2 100644
--- a/flags/telecom_call_flags.aconfig
+++ b/flags/telecom_call_flags.aconfig
@@ -1,9 +1,17 @@
 package: "com.android.server.telecom.flags"
 container: "system"
 
+# OWNER=tjstuart TARGET=24Q3
 flag {
   name: "transactional_cs_verifier"
   namespace: "telecom"
   description: "verify connection service callbacks via a transaction"
   bug: "309541257"
+}
+
+flag {
+  name: "cache_call_audio_callbacks"
+  namespace: "telecom"
+  description: "cache call audio callbacks if the service is not available and execute when set"
+  bug: "321369729"
 }
\ No newline at end of file
diff --git a/flags/telecom_callaudiomodestatemachine_flags.aconfig b/flags/telecom_callaudiomodestatemachine_flags.aconfig
index 1d81535..63761ec 100644
--- a/flags/telecom_callaudiomodestatemachine_flags.aconfig
+++ b/flags/telecom_callaudiomodestatemachine_flags.aconfig
@@ -1,6 +1,7 @@
 package: "com.android.server.telecom.flags"
 container: "system"
 
+# OWNER=pmadapurmath TARGET=24Q3
 flag {
   name: "set_audio_mode_before_abandon_focus"
   namespace: "telecom"
diff --git a/flags/telecom_callaudioroutestatemachine_flags.aconfig b/flags/telecom_callaudioroutestatemachine_flags.aconfig
index f5da045..1608869 100644
--- a/flags/telecom_callaudioroutestatemachine_flags.aconfig
+++ b/flags/telecom_callaudioroutestatemachine_flags.aconfig
@@ -1,6 +1,7 @@
 package: "com.android.server.telecom.flags"
 container: "system"
 
+# OWNER=kunduz TARGET=24Q2
 flag {
   name: "available_routes_never_updated_after_set_system_audio_state"
   namespace: "telecom"
@@ -8,6 +9,7 @@
   bug: "292599751"
 }
 
+# OWNER=pmadapurmath TARGET=24Q3
 flag {
   name: "use_refactored_audio_route_switching"
   namespace: "telecom"
@@ -15,6 +17,7 @@
   bug: "306395598"
 }
 
+# OWNER=tgunn TARGET=24Q3
 flag {
   name: "ensure_audio_mode_updates_on_foreground_call_change"
   namespace: "telecom"
@@ -22,6 +25,7 @@
   bug: "289861657"
 }
 
+# OWNER=pmadapurmath TARGET=24Q1
 flag {
   name: "ignore_auto_route_to_watch_device"
   namespace: "telecom"
@@ -29,6 +33,7 @@
   bug: "294378768"
 }
 
+# OWNER=pmadapurmath TARGET=24Q3
 flag {
   name: "transit_route_before_audio_disconnect_bt"
   namespace: "telecom"
@@ -36,6 +41,7 @@
   bug: "306113816"
 }
 
+# OWNER=pmadapurmath TARGET=24Q3
 flag {
   name: "call_audio_communication_device_refactor"
   namespace: "telecom"
@@ -43,6 +49,7 @@
   bug: "308968392"
 }
 
+# OWNER=pmadapurmath TARGET=24Q3
 flag {
   name: "communication_device_protected_by_lock"
   namespace: "telecom"
@@ -50,6 +57,7 @@
   bug: "303001133"
 }
 
+# OWNER=pmadapurmath TARGET=24Q3
 flag {
   name: "reset_mute_when_entering_quiescent_bt_route"
   namespace: "telecom"
@@ -57,6 +65,7 @@
   bug: "311313250"
 }
 
+# OWNER=pmadapurmath TARGET=24Q3
 flag {
   name: "update_route_mask_when_bt_connected"
   namespace: "telecom"
@@ -64,6 +73,7 @@
   bug: "301695370"
 }
 
+# OWNER=pmadapurmath TARGET=24Q3
 flag {
   name: "clear_communication_device_after_audio_ops_complete"
   namespace: "telecom"
diff --git a/flags/telecom_calllog_flags.aconfig b/flags/telecom_calllog_flags.aconfig
index 593b7e5..c0eebf1 100644
--- a/flags/telecom_calllog_flags.aconfig
+++ b/flags/telecom_calllog_flags.aconfig
@@ -1,6 +1,7 @@
 package: "com.android.server.telecom.flags"
 container: "system"
 
+# OWNER=qingzhong TARGET=24Q2
 flag {
   name: "telecom_log_external_wearable_calls"
   namespace: "telecom"
@@ -8,6 +9,7 @@
   bug: "292600751"
 }
 
+# OWNER=ranamouawi TARGET=24Q2
 flag {
   name: "telecom_skip_log_based_on_extra"
   namespace: "telecom"
diff --git a/flags/telecom_calls_manager_flags.aconfig b/flags/telecom_calls_manager_flags.aconfig
index de17eee..28e9dd8 100644
--- a/flags/telecom_calls_manager_flags.aconfig
+++ b/flags/telecom_calls_manager_flags.aconfig
@@ -1,6 +1,7 @@
 package: "com.android.server.telecom.flags"
 container: "system"
 
+# OWNER=pmadapurmath TARGET=24Q3
 flag {
   name: "use_improved_listener_order"
   namespace: "telecom"
@@ -8,6 +9,7 @@
   bug: "24244713"
 }
 
+# OWNER=tjstuart TARGET=24Q3
 flag {
   name: "fix_audio_flicker_for_outgoing_calls"
   namespace: "telecom"
@@ -15,9 +17,10 @@
   bug: "309540769"
 }
 
+# OWNER=breadley TARGET=24Q3
 flag {
   name: "enable_call_sequencing"
   namespace: "telecom"
   description: "Enables simultaneous call sequencing for SIM PhoneAccounts"
-  bug: "297446980"
+  bug: "327038818"
 }
diff --git a/flags/telecom_connection_service_wrapper_flags.aconfig b/flags/telecom_connection_service_wrapper_flags.aconfig
index 80a8dfe..38e5e13 100644
--- a/flags/telecom_connection_service_wrapper_flags.aconfig
+++ b/flags/telecom_connection_service_wrapper_flags.aconfig
@@ -1,6 +1,7 @@
 package: "com.android.server.telecom.flags"
 container: "system"
 
+# OWNER=grantmenke TARGET=24Q2
 flag {
   name: "updated_rcs_call_count_tracking"
   namespace: "telecom"
diff --git a/flags/telecom_default_phone_account_flags.aconfig b/flags/telecom_default_phone_account_flags.aconfig
index e6badde..161b674 100644
--- a/flags/telecom_default_phone_account_flags.aconfig
+++ b/flags/telecom_default_phone_account_flags.aconfig
@@ -1,6 +1,7 @@
 package: "com.android.server.telecom.flags"
 container: "system"
 
+# OWNER=tjstuart TARGET=24Q3
 flag {
   name: "only_update_telephony_on_valid_sub_ids"
   namespace: "telecom"
@@ -8,6 +9,7 @@
   bug: "234846282"
 }
 
+# OWNER=tjstuart TARGET=24Q3
 flag {
   name: "telephony_has_default_but_telecom_does_not"
   namespace: "telecom"
diff --git a/flags/telecom_incallservice_flags.aconfig b/flags/telecom_incallservice_flags.aconfig
index 08a82ba..ea842ac 100644
--- a/flags/telecom_incallservice_flags.aconfig
+++ b/flags/telecom_incallservice_flags.aconfig
@@ -1,6 +1,7 @@
 package: "com.android.server.telecom.flags"
 container: "system"
 
+# OWNER=qingzhong TARGET=24Q2
 flag {
   name: "early_binding_to_incall_service"
   namespace: "telecom"
@@ -8,6 +9,7 @@
   bug: "282113261"
 }
 
+# OWNER=pmadapurmath TARGET=24Q2
 flag {
   name: "ecc_keyguard"
   namespace: "telecom"
@@ -15,6 +17,7 @@
   bug: "306582821"
 }
 
+# OWNER=pmadapurmath TARGET=24Q3
 flag {
   name: "separately_bind_to_bt_incall_service"
   namespace: "telecom"
diff --git a/flags/telecom_profile_user_flags.aconfig b/flags/telecom_profile_user_flags.aconfig
index c046de8..feee07d 100644
--- a/flags/telecom_profile_user_flags.aconfig
+++ b/flags/telecom_profile_user_flags.aconfig
@@ -1,6 +1,7 @@
 package: "com.android.server.telecom.flags"
 container: "system"
 
+# OWNER=huiwang TARGET=24Q3
 flag {
   name: "profile_user_support"
   namespace: "telecom"
diff --git a/flags/telecom_remote_connection_service.aconfig b/flags/telecom_remote_connection_service.aconfig
new file mode 100644
index 0000000..a30f0b2
--- /dev/null
+++ b/flags/telecom_remote_connection_service.aconfig
@@ -0,0 +1,10 @@
+package: "com.android.server.telecom.flags"
+container: "system"
+
+# OWNER=pmadapurmath TARGET=24Q3
+flag {
+  name: "set_remote_connection_call_id"
+  namespace: "telecom"
+  description: "Sets the telecom call id for remote connections/ conferences."
+  bug: "320242200"
+}
diff --git a/flags/telecom_resolve_hidden_dependencies.aconfig b/flags/telecom_resolve_hidden_dependencies.aconfig
index 674a968..a120b85 100644
--- a/flags/telecom_resolve_hidden_dependencies.aconfig
+++ b/flags/telecom_resolve_hidden_dependencies.aconfig
@@ -1,9 +1,19 @@
 package: "com.android.server.telecom.flags"
 container: "system"
 
+# OWNER=tgunn TARGET=24Q3
 flag {
     name: "telecom_resolve_hidden_dependencies"
+    is_exported: true
     namespace: "telecom"
     description: "Mainland cleanup for hidden dependencies"
     bug: "323414215"
 }
+
+flag {
+    name: "telecom_mainline_blocked_numbers_manager"
+    namespace: "telecom"
+    description: "Fixed read only flag used for setting up BlockedNumbersManager to be retrieved via context"
+    bug: "325049252"
+    is_fixed_read_only: true
+}
diff --git a/flags/telecom_ringer_flag_declarations.aconfig b/flags/telecom_ringer_flag_declarations.aconfig
index 13577bb..f126bf3 100644
--- a/flags/telecom_ringer_flag_declarations.aconfig
+++ b/flags/telecom_ringer_flag_declarations.aconfig
@@ -1,6 +1,7 @@
 package: "com.android.server.telecom.flags"
 container: "system"
 
+# OWNER=yeabkal TARGET=24Q2
 flag {
   name: "use_device_provided_serialized_ringer_vibration"
   namespace: "telecom"
diff --git a/flags/telecom_work_profile_flags.aconfig b/flags/telecom_work_profile_flags.aconfig
index 854568b..1891423 100644
--- a/flags/telecom_work_profile_flags.aconfig
+++ b/flags/telecom_work_profile_flags.aconfig
@@ -1,6 +1,7 @@
 package: "com.android.server.telecom.flags"
 container: "system"
 
+# OWNER=pmadapurmath TARGET=24Q3
 flag {
   name: "associated_user_refactor_for_work_profile"
   namespace: "telecom"
diff --git a/res/values-night/styles.xml b/res/values-night/styles.xml
index 5b81fac..b94b9e4 100644
--- a/res/values-night/styles.xml
+++ b/res/values-night/styles.xml
@@ -23,6 +23,11 @@
         <item name="android:actionOverflowButtonStyle">@style/TelecomDialerSettingsActionOverflowButtonStyle</item>
         <item name="android:windowLightNavigationBar">true</item>
         <item name="android:windowContentOverlay">@null</item>
+
+        <!--
+            TODO(b/309578419): Make activities handle insets properly and then remove this.
+        -->
+        <item name="android:windowOptOutEdgeToEdgeEnforcement">true</item>
     </style>
 
     <style name="Theme.Telecom.BlockedNumbers" parent="@android:style/Theme.DeviceDefault.Light">
@@ -31,6 +36,11 @@
         <item name="android:windowLightNavigationBar">true</item>
         <item name="android:windowContentOverlay">@null</item>
         <item name="android:listDivider">@null</item>
+
+        <!--
+            TODO(b/309578419): Make activities handle insets properly and then remove this.
+        -->
+        <item name="android:windowOptOutEdgeToEdgeEnforcement">true</item>
     </style>
 
 </resources>
\ No newline at end of file
diff --git a/res/values/styles.xml b/res/values/styles.xml
index cd608f5..0624082 100644
--- a/res/values/styles.xml
+++ b/res/values/styles.xml
@@ -32,6 +32,11 @@
         <item name="android:navigationBarColor">@android:color/transparent</item>
         <item name="android:windowLightStatusBar">true</item>
         <item name="android:windowLightNavigationBar">true</item>
+
+        <!--
+            TODO(b/309578419): Make activities handle insets properly and then remove this.
+        -->
+        <item name="android:windowOptOutEdgeToEdgeEnforcement">true</item>
     </style>
 
     <style name="Theme.Telecom.EnableAccount" parent="Theme.Telecom.DialerSettings">
diff --git a/src/com/android/server/telecom/Analytics.java b/src/com/android/server/telecom/Analytics.java
index 45e3340..4cf54ed 100644
--- a/src/com/android/server/telecom/Analytics.java
+++ b/src/com/android/server/telecom/Analytics.java
@@ -720,15 +720,19 @@
     }
 
     private static int getCarrierId(Context context) {
-        SubscriptionManager subscriptionManager =
-                context.getSystemService(SubscriptionManager.class).createForAllUserProfiles();
-        List<SubscriptionInfo> subInfos = subscriptionManager.getActiveSubscriptionInfoList();
-        if (subInfos == null) {
+        try {
+            SubscriptionManager subscriptionManager =
+                    context.getSystemService(SubscriptionManager.class).createForAllUserProfiles();
+            List<SubscriptionInfo> subInfos = subscriptionManager.getActiveSubscriptionInfoList();
+            if (subInfos == null) {
+                return -1;
+            }
+            return subInfos.stream()
+                    .max(Comparator.comparing(Analytics::scoreSubscriptionInfo))
+                    .map(SubscriptionInfo::getCarrierId).orElse(-1);
+        } catch (UnsupportedOperationException ignored) {
             return -1;
         }
-        return subInfos.stream()
-                .max(Comparator.comparing(Analytics::scoreSubscriptionInfo))
-                .map(SubscriptionInfo::getCarrierId).orElse(-1);
     }
 
     // Copied over from Telephony's server-side logic for consistency
diff --git a/src/com/android/server/telecom/AudioRoute.java b/src/com/android/server/telecom/AudioRoute.java
index cdf44a8..7b593d7 100644
--- a/src/com/android/server/telecom/AudioRoute.java
+++ b/src/com/android/server/telecom/AudioRoute.java
@@ -23,11 +23,14 @@
 import static com.android.server.telecom.CallAudioRouteAdapter.SPEAKER_ON;
 
 import android.annotation.IntDef;
+import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothStatusCodes;
 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 java.lang.annotation.Retention;
 import java.lang.annotation.RetentionPolicy;
@@ -38,6 +41,7 @@
 import java.util.Set;
 import java.util.concurrent.CompletableFuture;
 import java.util.concurrent.ExecutionException;
+import java.util.concurrent.RejectedExecutionException;
 import java.util.concurrent.ScheduledExecutorService;
 import java.util.concurrent.ScheduledThreadPoolExecutor;
 import java.util.concurrent.TimeUnit;
@@ -46,9 +50,10 @@
     public static class Factory {
         private final ScheduledExecutorService mScheduledExecutorService =
                 new ScheduledThreadPoolExecutor(1);
-        private final CompletableFuture<AudioRoute> mAudioRouteFuture = new CompletableFuture<>();
+        private CompletableFuture<AudioRoute> mAudioRouteFuture;
         public AudioRoute create(@AudioRouteType int type, String bluetoothAddress,
                                  AudioManager audioManager) throws RuntimeException {
+            mAudioRouteFuture = new CompletableFuture();
             createRetry(type, bluetoothAddress, audioManager, MAX_CONNECTION_RETRIES);
             try {
                 return mAudioRouteFuture.get();
@@ -58,8 +63,10 @@
         }
         private void createRetry(@AudioRouteType int type, String bluetoothAddress,
                                        AudioManager audioManager, int retryCount) {
+            // Early exit if exceeded max number of retries (and complete the future).
             if (retryCount == 0) {
                 mAudioRouteFuture.complete(null);
+                return;
             }
 
             Log.i(this, "creating AudioRoute with type %s and address %s, retry count %d",
@@ -81,10 +88,17 @@
                     }
                 }
             }
-            if (routeInfo == null) {
-                mScheduledExecutorService.schedule(
-                        () -> createRetry(type, bluetoothAddress, audioManager, retryCount - 1),
-                        RETRY_TIME_DELAY, TimeUnit.MILLISECONDS);
+            // Try connecting BT device anyway (to handle wearables not showing as available
+            // communication device or LE device not showing up since it may not be the lead
+            // device).
+            if (routeInfo == null && bluetoothAddress == null) {
+                try {
+                    mScheduledExecutorService.schedule(
+                            () -> createRetry(type, bluetoothAddress, audioManager, retryCount - 1),
+                            RETRY_TIME_DELAY, TimeUnit.MILLISECONDS);
+                } catch (RejectedExecutionException e) {
+                    Log.e(this, e, "Could not schedule retry for audio routing.");
+                }
             } else {
                 mAudioRouteFuture.complete(new AudioRoute(type, bluetoothAddress, routeInfo));
             }
@@ -222,30 +236,81 @@
 
     // Invoked when entered pending route whose dest route is this route
     void onDestRouteAsPendingRoute(boolean active, PendingAudioRoute pendingAudioRoute,
-                                   AudioManager audioManager) {
+            BluetoothDevice device, AudioManager audioManager,
+            BluetoothRouteManager bluetoothRouteManager) {
+        Log.i(this, "onDestRouteAsPendingRoute: active (%b), type (%d)", active, mAudioRouteType);
         if (pendingAudioRoute.isActive() && !active) {
-            Log.i(this, "clearCommunicationDevice");
-            audioManager.clearCommunicationDevice();
+            clearCommunicationDevice(pendingAudioRoute, bluetoothRouteManager, audioManager);
         } else if (active) {
-            if (mAudioRouteType == TYPE_BLUETOOTH_SCO) {
-                pendingAudioRoute.addMessage(BT_AUDIO_CONNECTED);
+            // Handle BT routing case.
+            if (BT_AUDIO_ROUTE_TYPES.contains(mAudioRouteType)) {
+                boolean connectedBtAudio = connectBtAudio(pendingAudioRoute, device,
+                        audioManager, bluetoothRouteManager);
+                // Special handling for SCO case.
+                if (mAudioRouteType == TYPE_BLUETOOTH_SCO) {
+                    // Check if the communication device was set for the device, even if
+                    // BluetoothHeadset#connectAudio reports that the SCO connection wasn't
+                    // successfully established.
+                    boolean scoConnected = audioManager.getCommunicationDevice().equals(mInfo);
+                    if (connectedBtAudio || scoConnected) {
+                        pendingAudioRoute.setCommunicationDeviceType(mAudioRouteType);
+                    }
+                    if (connectedBtAudio) {
+                        pendingAudioRoute.addMessage(BT_AUDIO_CONNECTED);
+                    } else if (!scoConnected) {
+                        pendingAudioRoute.onMessageReceived(
+                                PENDING_ROUTE_FAILED, mBluetoothAddress);
+                    }
+                    return;
+                }
             } else if (mAudioRouteType == TYPE_SPEAKER) {
                 pendingAudioRoute.addMessage(SPEAKER_ON);
             }
-            if (!audioManager.setCommunicationDevice(mInfo)) {
-                pendingAudioRoute.onMessageReceived(PENDING_ROUTE_FAILED);
+
+            boolean result = false;
+            List<AudioDeviceInfo> devices = audioManager.getAvailableCommunicationDevices();
+            for (AudioDeviceInfo deviceInfo : devices) {
+                // It's possible for the AudioDeviceInfo to be updated for the BT device so adjust
+                // mInfo accordingly.
+                if (BT_AUDIO_ROUTE_TYPES.contains(mAudioRouteType) && mBluetoothAddress
+                        .equals(deviceInfo.getAddress())) {
+                    mInfo = deviceInfo;
+                }
+                if (deviceInfo.equals(mInfo)) {
+                    result = audioManager.setCommunicationDevice(mInfo);
+                    if (result) {
+                        pendingAudioRoute.setCommunicationDeviceType(mAudioRouteType);
+                    }
+                    Log.i(this, "Result of setting communication device for audio "
+                            + "route (%s) - %b", this, result);
+                    break;
+                }
+            }
+
+            // It's possible that BluetoothStateReceiver needs to report that the device is active
+            // before being able to successfully set the communication device. Refrain from sending
+            // pending route failed message for BT route until the second attempt fails.
+            if (!result && !BT_AUDIO_ROUTE_TYPES.contains(mAudioRouteType)) {
+                pendingAudioRoute.onMessageReceived(PENDING_ROUTE_FAILED, null);
             }
         }
     }
 
+    // Takes care of cleaning up original audio route (i.e. clearCommunicationDevice,
+    // sending SPEAKER_OFF, or disconnecting SCO).
     void onOrigRouteAsPendingRoute(boolean active, PendingAudioRoute pendingAudioRoute,
-                                   AudioManager audioManager) {
+            AudioManager audioManager, BluetoothRouteManager bluetoothRouteManager) {
+        Log.i(this, "onOrigRouteAsPendingRoute: active (%b), type (%d)", active, mAudioRouteType);
         if (active) {
-            if (mAudioRouteType == TYPE_BLUETOOTH_SCO) {
-                pendingAudioRoute.addMessage(BT_AUDIO_DISCONNECTED);
-            } else if (mAudioRouteType == TYPE_SPEAKER) {
+            if (mAudioRouteType == TYPE_SPEAKER) {
                 pendingAudioRoute.addMessage(SPEAKER_OFF);
             }
+            int result = clearCommunicationDevice(pendingAudioRoute, bluetoothRouteManager,
+                    audioManager);
+            // Only send BT_AUDIO_DISCONNECTED for SCO if disconnect was successful.
+            if (mAudioRouteType == TYPE_BLUETOOTH_SCO && result == BluetoothStatusCodes.SUCCESS) {
+                pendingAudioRoute.addMessage(BT_AUDIO_DISCONNECTED);
+            }
         }
     }
 
@@ -282,4 +347,50 @@
                 + ", Address=" + ((mBluetoothAddress != null) ? mBluetoothAddress : "invalid")
                 + "]";
     }
+
+    private boolean connectBtAudio(PendingAudioRoute pendingAudioRoute, BluetoothDevice device,
+            AudioManager audioManager, BluetoothRouteManager bluetoothRouteManager) {
+        // Ensure that if another BT device was set, it is disconnected before connecting
+        // the new one.
+        AudioRoute currentRoute = pendingAudioRoute.getOrigRoute();
+        if (currentRoute.getBluetoothAddress() != null &&
+                !currentRoute.getBluetoothAddress().equals(device.getAddress())) {
+            clearCommunicationDevice(pendingAudioRoute, bluetoothRouteManager, audioManager);
+        }
+
+        // Connect to the device (explicit handling for HFP devices).
+        boolean success = false;
+        if (device != null) {
+            success = bluetoothRouteManager.getDeviceManager()
+                    .connectAudio(device, mAudioRouteType);
+        }
+
+        Log.i(this, "connectBtAudio: routeToConnectTo = %s, successful = %b",
+                this, success);
+        return success;
+    }
+
+    private int clearCommunicationDevice(PendingAudioRoute pendingAudioRoute,
+            BluetoothRouteManager bluetoothRouteManager, AudioManager audioManager) {
+        // Try to see if there's a previously set device for communication that should be cleared.
+        // This only serves to help in the SCO case to ensure that we disconnect the headset.
+        if (pendingAudioRoute.getCommunicationDeviceType() == AudioRoute.TYPE_INVALID) {
+            return -1;
+        }
+
+        int result = BluetoothStatusCodes.SUCCESS;
+        if (pendingAudioRoute.getCommunicationDeviceType() == TYPE_BLUETOOTH_SCO) {
+            Log.i(this, "Disconnecting SCO device.");
+            result = bluetoothRouteManager.getDeviceManager().disconnectSco();
+        } else {
+            Log.i(this, "Clearing communication device for audio type %d.",
+                    pendingAudioRoute.getCommunicationDeviceType());
+            audioManager.clearCommunicationDevice();
+        }
+
+        if (result == BluetoothStatusCodes.SUCCESS) {
+            pendingAudioRoute.setCommunicationDeviceType(AudioRoute.TYPE_INVALID);
+        }
+        return result;
+    }
 }
diff --git a/src/com/android/server/telecom/CachedAvailableEndpointsChange.java b/src/com/android/server/telecom/CachedAvailableEndpointsChange.java
new file mode 100644
index 0000000..232f00d
--- /dev/null
+++ b/src/com/android/server/telecom/CachedAvailableEndpointsChange.java
@@ -0,0 +1,70 @@
+/*
+ * 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;
+
+import android.telecom.CallEndpoint;
+
+import java.util.Objects;
+import java.util.Set;
+
+public class CachedAvailableEndpointsChange implements CachedCallback {
+    public static final String ID = CachedAvailableEndpointsChange.class.getSimpleName();
+    Set<CallEndpoint> mAvailableEndpoints;
+
+    public Set<CallEndpoint> getAvailableEndpoints() {
+        return mAvailableEndpoints;
+    }
+
+    public CachedAvailableEndpointsChange(Set<CallEndpoint> endpoints) {
+        mAvailableEndpoints = endpoints;
+    }
+
+    @Override
+    public void executeCallback(CallSourceService service, Call call) {
+        service.onAvailableCallEndpointsChanged(call, mAvailableEndpoints);
+    }
+
+    @Override
+    public String getCallbackId() {
+        return ID;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(mAvailableEndpoints);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null) {
+            return false;
+        }
+        if (!(obj instanceof CachedAvailableEndpointsChange other)) {
+            return false;
+        }
+        if (mAvailableEndpoints.size() != other.mAvailableEndpoints.size()) {
+            return false;
+        }
+        for (CallEndpoint e : mAvailableEndpoints) {
+            if (!other.getAvailableEndpoints().contains(e)) {
+                return false;
+            }
+        }
+        return true;
+    }
+}
+
diff --git a/src/com/android/server/telecom/CachedCallback.java b/src/com/android/server/telecom/CachedCallback.java
new file mode 100644
index 0000000..88dad07
--- /dev/null
+++ b/src/com/android/server/telecom/CachedCallback.java
@@ -0,0 +1,43 @@
+/*
+ * 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;
+
+/**
+ * Any android.telecom.Call service (e.g. ConnectionService, TransactionalService) that declares
+ * a {@link CallSourceService} should implement this interface in order to cache the callback.
+ * The callback will be executed once the service is set.
+ */
+public interface CachedCallback {
+    /**
+     * This method executes the callback that was cached because the service was not available
+     * at the time the callback was ready.
+     *
+     * @param service that was recently set (e.g. ConnectionService)
+     * @param call    that had a null service at the time the callback was ready. The service is now
+     *                non-null in the call and can be executed/
+     */
+    void executeCallback(CallSourceService service, Call call);
+
+    /**
+     * This method is helpful for caching the callbacks.  If the callback is called multiple times
+     * while the service is not set, ONLY the last callback should be sent to the client since the
+     * last callback is the most relevant
+     *
+     * @return the callback id that is used in a map to only store the last callback value
+     */
+    String getCallbackId();
+}
diff --git a/src/com/android/server/telecom/CachedCurrentEndpointChange.java b/src/com/android/server/telecom/CachedCurrentEndpointChange.java
new file mode 100644
index 0000000..0d5bac9
--- /dev/null
+++ b/src/com/android/server/telecom/CachedCurrentEndpointChange.java
@@ -0,0 +1,61 @@
+/*
+ * 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;
+
+import android.telecom.CallEndpoint;
+
+import java.util.Objects;
+
+public class CachedCurrentEndpointChange implements CachedCallback {
+    public static final String ID = CachedCurrentEndpointChange.class.getSimpleName();
+    CallEndpoint mCurrentCallEndpoint;
+
+    public CallEndpoint getCurrentCallEndpoint() {
+        return mCurrentCallEndpoint;
+    }
+
+    public CachedCurrentEndpointChange(CallEndpoint callEndpoint) {
+        mCurrentCallEndpoint = callEndpoint;
+    }
+
+    @Override
+    public void executeCallback(CallSourceService service, Call call) {
+        service.onCallEndpointChanged(call, mCurrentCallEndpoint);
+    }
+
+    @Override
+    public String getCallbackId() {
+        return ID;
+    }
+
+    @Override
+    public int hashCode() {
+        return Objects.hashCode(mCurrentCallEndpoint);
+    }
+
+    @Override
+    public boolean equals(Object obj){
+        if (obj == null) {
+            return false;
+        }
+        if (!(obj instanceof CachedCurrentEndpointChange other)) {
+            return false;
+        }
+        return mCurrentCallEndpoint.equals(other.mCurrentCallEndpoint);
+    }
+}
+
diff --git a/src/com/android/server/telecom/CachedMuteStateChange.java b/src/com/android/server/telecom/CachedMuteStateChange.java
new file mode 100644
index 0000000..45cbfaa
--- /dev/null
+++ b/src/com/android/server/telecom/CachedMuteStateChange.java
@@ -0,0 +1,57 @@
+/*
+ * 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;
+
+public class CachedMuteStateChange implements CachedCallback {
+    public static final String ID = CachedMuteStateChange.class.getSimpleName();
+    boolean mIsMuted;
+
+    public boolean isMuted() {
+        return mIsMuted;
+    }
+
+    public CachedMuteStateChange(boolean isMuted) {
+        mIsMuted = isMuted;
+    }
+
+    @Override
+    public void executeCallback(CallSourceService service, Call call) {
+        service.onMuteStateChanged(call, mIsMuted);
+    }
+
+    @Override
+    public String getCallbackId() {
+        return ID;
+    }
+
+    @Override
+    public int hashCode() {
+        return Boolean.hashCode(mIsMuted);
+    }
+
+    @Override
+    public boolean equals(Object obj) {
+        if (obj == null) {
+            return false;
+        }
+        if (!(obj instanceof CachedMuteStateChange other)) {
+            return false;
+        }
+        return mIsMuted == other.mIsMuted;
+    }
+}
+
diff --git a/src/com/android/server/telecom/Call.java b/src/com/android/server/telecom/Call.java
index 642a667..29eb419 100644
--- a/src/com/android/server/telecom/Call.java
+++ b/src/com/android/server/telecom/Call.java
@@ -86,6 +86,7 @@
 import java.util.Collection;
 import java.util.Collections;
 import java.util.Date;
+import java.util.HashMap;
 import java.util.LinkedList;
 import java.util.List;
 import java.util.Locale;
@@ -833,6 +834,16 @@
      */
     private CompletableFuture<Boolean> mBtIcsFuture;
 
+    Map<String, CachedCallback> mCachedServiceCallbacks = new HashMap<>();
+
+    public void cacheServiceCallback(CachedCallback callback) {
+        mCachedServiceCallbacks.put(callback.getCallbackId(), callback);
+    }
+
+    public Map<String, CachedCallback> getCachedServiceCallbacks() {
+        return mCachedServiceCallbacks;
+    }
+
     private FeatureFlags mFlags;
 
     /**
@@ -1562,6 +1573,9 @@
                     mIsEmergencyCall = mHandle != null &&
                             getTelephonyManager().isEmergencyNumber(
                                     mHandle.getSchemeSpecificPart());
+                } catch (UnsupportedOperationException use) {
+                    Log.i(this, "setHandle: no FEATURE_TELEPHONY; emergency state unknown.");
+                    mIsEmergencyCall = false;
                 } catch (IllegalStateException ise) {
                     Log.e(this, ise, "setHandle: can't determine if number is emergency");
                     mIsEmergencyCall = false;
@@ -1590,6 +1604,9 @@
                     .anyMatch(eNumber ->
                             eNumber.isFromSources(EmergencyNumber.EMERGENCY_NUMBER_SOURCE_TEST) &&
                                     number.equals(eNumber.getNumber()));
+        } catch (UnsupportedOperationException uoe) {
+            // No Telephony feature, so unable to determine.
+            return false;
         } catch (IllegalStateException ise) {
             return false;
         } catch (RuntimeException r) {
@@ -2001,7 +2018,27 @@
     }
 
     public void setTransactionServiceWrapper(TransactionalServiceWrapper service) {
+        Log.i(this, "setTransactionServiceWrapper: service=[%s]", service);
         mTransactionalService = service;
+        processCachedCallbacks(service);
+    }
+
+    private void processCachedCallbacks(CallSourceService service) {
+        if(mFlags.cacheCallAudioCallbacks()) {
+            for (CachedCallback callback : mCachedServiceCallbacks.values()) {
+                callback.executeCallback(service, this);
+            }
+            // clear list for memory cleanup purposes. The Service should never be reset
+            mCachedServiceCallbacks.clear();
+        }
+    }
+
+    public CallSourceService getService() {
+        if (isTransactionalCall()) {
+            return mTransactionalService;
+        } else {
+            return mConnectionService;
+        }
     }
 
     public TransactionalServiceWrapper getTransactionServiceWrapper() {
@@ -2083,7 +2120,7 @@
                 userHandle = mTargetPhoneAccountHandle.getUserHandle();
             }
             if (userHandle != null) {
-                isWorkCall = UserUtil.isManagedProfile(mContext, userHandle);
+                isWorkCall = UserUtil.isManagedProfile(mContext, userHandle, mFlags);
             }
 
             isCallRecordingToneSupported = (phoneAccount.hasCapabilities(
@@ -2408,6 +2445,7 @@
 
     @VisibleForTesting
     public void setConnectionService(ConnectionServiceWrapper service) {
+        Log.i(this, "setConnectionService: service=[%s]", service);
         setConnectionService(service, null);
     }
 
@@ -2430,6 +2468,7 @@
         mConnectionService = service;
         mAnalytics.setCallConnectionService(service.getComponentName().flattenToShortString());
         mConnectionService.addCall(this);
+        processCachedCallbacks(service);
     }
 
     /**
@@ -3053,16 +3092,24 @@
     public void awaitCallStateChangeAndMaybeDisconnectCall(int targetCallState,
             boolean shouldDisconnectUponTimeout, String callingMethod) {
         TransactionManager tm = TransactionManager.getInstance();
-        tm.addTransaction(new VerifyCallStateChangeTransaction(mCallsManager,
-                this, targetCallState, shouldDisconnectUponTimeout), new OutcomeReceiver<>() {
+        tm.addTransaction(new VerifyCallStateChangeTransaction(mCallsManager.getLock(),
+                this, targetCallState), new OutcomeReceiver<>() {
             @Override
             public void onResult(VoipCallTransactionResult result) {
+                Log.i(this, "awaitCallStateChangeAndMaybeDisconnectCall: %s: onResult:"
+                        + " due to CallException=[%s]", callingMethod, result);
             }
 
             @Override
             public void onError(CallException e) {
                 Log.i(this, "awaitCallStateChangeAndMaybeDisconnectCall: %s: onError"
                         + " due to CallException=[%s]", callingMethod, e);
+                if (shouldDisconnectUponTimeout) {
+                    mCallsManager.markCallAsDisconnected(Call.this,
+                            new DisconnectCause(DisconnectCause.ERROR,
+                                    "did not hold in timeout window"));
+                    mCallsManager.markCallAsRemoved(Call.this);
+                }
             }
         });
     }
@@ -3432,7 +3479,7 @@
             Log.w(this, "pullExternalCall = pullExternalCall - call %s is external but can not be"
                     + " pulled while an emergency call is in progress.", mId);
             mToastFactory.makeText(mContext, R.string.toast_emergency_can_not_pull_call,
-                    Toast.LENGTH_LONG).show();
+                    Toast.LENGTH_LONG);
             return;
         }
 
@@ -3699,8 +3746,12 @@
         }
 
         // Is there a valid SMS application on the phone?
-        if (mContext.getSystemService(TelephonyManager.class)
-                .getAndUpdateDefaultRespondViaMessageApplication() == null) {
+        try {
+            if (mContext.getSystemService(TelephonyManager.class)
+                    .getAndUpdateDefaultRespondViaMessageApplication() == null) {
+                return false;
+            }
+        } catch (UnsupportedOperationException uoe) {
             return false;
         }
 
diff --git a/src/com/android/server/telecom/CallAudioRouteAdapter.java b/src/com/android/server/telecom/CallAudioRouteAdapter.java
index 5585d09..9927c22 100644
--- a/src/com/android/server/telecom/CallAudioRouteAdapter.java
+++ b/src/com/android/server/telecom/CallAudioRouteAdapter.java
@@ -134,5 +134,6 @@
     CallAudioState getCurrentCallAudioState();
     boolean isHfpDeviceAvailable();
     Handler getAdapterHandler();
+    PendingAudioRoute getPendingAudioRoute();
     void dump(IndentingPrintWriter pw);
 }
diff --git a/src/com/android/server/telecom/CallAudioRouteController.java b/src/com/android/server/telecom/CallAudioRouteController.java
index d38577d..7b29fc8 100644
--- a/src/com/android/server/telecom/CallAudioRouteController.java
+++ b/src/com/android/server/telecom/CallAudioRouteController.java
@@ -19,25 +19,24 @@
 import static com.android.server.telecom.AudioRoute.BT_AUDIO_ROUTE_TYPES;
 import static com.android.server.telecom.AudioRoute.TYPE_INVALID;
 
-import android.app.ActivityManager;
+import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothLeAudio;
+import android.bluetooth.BluetoothProfile;
 import android.content.BroadcastReceiver;
 import android.content.Context;
 import android.content.Intent;
 import android.content.IntentFilter;
-import android.content.pm.UserInfo;
 import android.media.AudioAttributes;
 import android.media.AudioDeviceAttributes;
 import android.media.AudioDeviceInfo;
 import android.media.AudioManager;
 import android.media.IAudioService;
 import android.media.audiopolicy.AudioProductStrategy;
-import android.os.Binder;
 import android.os.Handler;
 import android.os.HandlerThread;
 import android.os.Message;
 import android.os.RemoteException;
-import android.os.UserHandle;
 import android.telecom.CallAudioState;
 import android.telecom.Log;
 import android.telecom.Logging.Session;
@@ -49,8 +48,10 @@
 import com.android.internal.os.SomeArgs;
 import com.android.internal.util.IndentingPrintWriter;
 import com.android.server.telecom.bluetooth.BluetoothRouteManager;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import java.util.HashSet;
+import java.util.LinkedHashMap;
 import java.util.List;
 import java.util.Map;
 import java.util.Objects;
@@ -90,6 +91,8 @@
     private Map<Integer, AudioRoute> mTypeRoutes;
     private PendingAudioRoute mPendingAudioRoute;
     private AudioRoute.Factory mAudioRouteFactory;
+    private StatusBarNotifier mStatusBarNotifier;
+    private FeatureFlags mFeatureFlags;
     private int mFocusType;
     private final Object mLock = new Object();
     private final BroadcastReceiver mSpeakerPhoneChangeReceiver = new BroadcastReceiver() {
@@ -152,12 +155,11 @@
     private boolean mIsActive;
 
     public CallAudioRouteController(
-            Context context,
-            CallsManager callsManager,
+            Context context, CallsManager callsManager,
             CallAudioManager.AudioServiceFactory audioServiceFactory,
-            AudioRoute.Factory audioRouteFactory,
-            WiredHeadsetManager wiredHeadsetManager,
-            BluetoothRouteManager bluetoothRouteManager) {
+            AudioRoute.Factory audioRouteFactory, WiredHeadsetManager wiredHeadsetManager,
+            BluetoothRouteManager bluetoothRouteManager, StatusBarNotifier statusBarNotifier,
+            FeatureFlags featureFlags) {
         mContext = context;
         mCallsManager = callsManager;
         mAudioManager = context.getSystemService(AudioManager.class);
@@ -166,6 +168,8 @@
         mWiredHeadsetManager = wiredHeadsetManager;
         mIsMute = false;
         mBluetoothRouteManager = bluetoothRouteManager;
+        mStatusBarNotifier = statusBarNotifier;
+        mFeatureFlags = featureFlags;
         mFocusType = NO_FOCUS;
         HandlerThread handlerThread = new HandlerThread(this.getClass().getSimpleName());
         handlerThread.start();
@@ -246,8 +250,10 @@
                         case USER_SWITCH_SPEAKER:
                             handleSwitchSpeaker();
                             break;
+                        case SWITCH_BASELINE_ROUTE:
                         case USER_SWITCH_BASELINE_ROUTE:
-                            handleSwitchBaselineRoute();
+                            address = (String) ((SomeArgs) msg.obj).arg2;
+                            handleSwitchBaselineRoute(address);
                             break;
                         case SPEAKER_ON:
                             handleSpeakerOn();
@@ -296,16 +302,16 @@
     @Override
     public void initialize() {
         mAvailableRoutes = new HashSet<>();
-        mBluetoothRoutes = new ArrayMap<>();
+        mBluetoothRoutes = new LinkedHashMap<>();
         mTypeRoutes = new ArrayMap<>();
         mStreamingRoutes = new HashSet<>();
-        mPendingAudioRoute = new PendingAudioRoute(this, mAudioManager);
+        mPendingAudioRoute = new PendingAudioRoute(this, mAudioManager, mBluetoothRouteManager);
         mStreamingRoute = new AudioRoute(AudioRoute.TYPE_STREAMING, null, null);
         mStreamingRoutes.add(mStreamingRoute);
 
-        int supportMask = calculateSupportedRouteMask();
+        int supportMask = calculateSupportedRouteMaskInit();
         if ((supportMask & CallAudioState.ROUTE_SPEAKER) != 0) {
-            // Create spekaer routes
+            // Create speaker routes
             mSpeakerDockRoute = mAudioRouteFactory.create(AudioRoute.TYPE_SPEAKER, null,
                     mAudioManager);
             if (mSpeakerDockRoute == null) {
@@ -391,7 +397,7 @@
 
     @Override
     public CallAudioState getCurrentCallAudioState() {
-        return null;
+        return mCallAudioState;
     }
 
     @Override
@@ -405,6 +411,11 @@
     }
 
     @Override
+    public PendingAudioRoute getPendingAudioRoute() {
+        return mPendingAudioRoute;
+    }
+
+    @Override
     public void dump(IndentingPrintWriter pw) {
     }
 
@@ -434,6 +445,7 @@
 
     private void routeTo(boolean active, AudioRoute destRoute) {
         if (!destRoute.equals(mStreamingRoute) && !getAvailableRoutes().contains(destRoute)) {
+            Log.i(this, "Ignore routing to unavailable route: %s", destRoute);
             return;
         }
         if (mIsPending) {
@@ -445,9 +457,9 @@
                     mPendingAudioRoute.getDestRoute(), mIsActive, destRoute, active);
             // override pending route while keep waiting for still pending messages for the
             // previous pending route
-            mIsActive = active;
             mPendingAudioRoute.setOrigRoute(mIsActive, mPendingAudioRoute.getDestRoute());
-            mPendingAudioRoute.setDestRoute(active, destRoute);
+            mPendingAudioRoute.setDestRoute(active, destRoute, mBluetoothRoutes.get(destRoute));
+            mIsActive = active;
         } else {
             if (mCurrentRoute.equals(destRoute) && (mIsActive == active)) {
                 return;
@@ -461,7 +473,7 @@
                 // Avoid waiting for pending messages for an unavailable route
                 mPendingAudioRoute.setOrigRoute(mIsActive, DUMMY_ROUTE);
             }
-            mPendingAudioRoute.setDestRoute(active, destRoute);
+            mPendingAudioRoute.setDestRoute(active, destRoute, mBluetoothRoutes.get(destRoute));
             mIsActive = active;
             mIsPending = true;
         }
@@ -512,7 +524,7 @@
 
         // Route to expected state
         if (mCurrentRoute.equals(wiredHeadsetRoute)) {
-            routeTo(mIsActive, getBaseRoute(true));
+            routeTo(mIsActive, getBaseRoute(true, null));
         }
     }
 
@@ -551,7 +563,7 @@
 
         // Route to expected state
         if (mCurrentRoute.equals(dockRoute)) {
-            routeTo(mIsActive, getBaseRoute(true));
+            routeTo(mIsActive, getBaseRoute(true, null));
         }
     }
 
@@ -567,38 +579,69 @@
         if (mCurrentRoute.equals(mStreamingRoute)) {
             mCurrentRoute = DUMMY_ROUTE;
             onAvailableRoutesChanged();
-            routeTo(mIsActive, getBaseRoute(true));
+            routeTo(mIsActive, getBaseRoute(true, null));
         } else {
             Log.i(this, "ignore disable streaming, not in streaming");
         }
     }
 
+    /**
+     * Handles the case when SCO audio is connected for the BT headset. This follows shortly after
+     * the BT device has been established as an active device (BT_ACTIVE_DEVICE_PRESENT) and doesn't
+     * apply to other BT device types. In this case, the pending audio route will process the
+     * BT_AUDIO_CONNECTED message that will trigger routing to the pending destination audio route;
+     * otherwise, routing will be ignored if there aren't pending routes to be processed.
+     *
+     * Message being handled: BT_AUDIO_CONNECTED
+     */
     private void handleBtAudioActive(BluetoothDevice bluetoothDevice) {
         if (mIsPending) {
+            Log.i(this, "handleBtAudioActive: is pending path");
             if (Objects.equals(mPendingAudioRoute.getDestRoute().getBluetoothAddress(),
                     bluetoothDevice.getAddress())) {
-                mPendingAudioRoute.onMessageReceived(BT_AUDIO_CONNECTED);
+                mPendingAudioRoute.onMessageReceived(BT_AUDIO_CONNECTED, null);
             }
         } else {
             // ignore, not triggered by telecom
+            Log.i(this, "handleBtAudioActive: ignoring handling bt audio active.");
         }
     }
 
+    /**
+     * Handles the case when SCO audio is disconnected for the BT headset. In this case, the pending
+     * audio route will process the BT_AUDIO_DISCONNECTED message which will trigger routing to the
+     * pending destination audio route; otherwise, routing will be ignored if there aren't any
+     * pending routes to be processed.
+     *
+     * Message being handled: BT_AUDIO_DISCONNECTED
+     */
     private void handleBtAudioInactive(BluetoothDevice bluetoothDevice) {
         if (mIsPending) {
+            Log.i(this, "handleBtAudioInactive: is pending path");
             if (Objects.equals(mPendingAudioRoute.getOrigRoute().getBluetoothAddress(),
                     bluetoothDevice.getAddress())) {
-                mPendingAudioRoute.onMessageReceived(BT_AUDIO_DISCONNECTED);
+                mPendingAudioRoute.onMessageReceived(BT_AUDIO_DISCONNECTED, null);
             }
         } else {
             // ignore, not triggered by telecom
+            Log.i(this, "handleBtAudioInactive: ignoring handling bt audio inactive.");
         }
     }
 
+    /**
+     * This particular routing occurs when the BT device is trying to establish itself as a
+     * connected device (refer to BluetoothStateReceiver#handleConnectionStateChanged). The device
+     * is included as an available route and cached into the current BT routes.
+     *
+     * Message being handled: BT_DEVICE_ADDED
+     */
     private void handleBtConnected(@AudioRoute.AudioRouteType int type,
                                    BluetoothDevice bluetoothDevice) {
-        AudioRoute bluetoothRoute = null;
-        bluetoothRoute = mAudioRouteFactory.create(type, bluetoothDevice.getAddress(),
+        if (containsHearingAidPair(type, bluetoothDevice)) {
+            return;
+        }
+
+        AudioRoute bluetoothRoute = mAudioRouteFactory.create(type, bluetoothDevice.getAddress(),
                 mAudioManager);
         if (bluetoothRoute == null) {
             Log.w(this, "Can't find available audio device info for route type:"
@@ -611,6 +654,14 @@
         }
     }
 
+    /**
+     * Handles the case when the BT device is in a disconnecting/disconnected state. In this case,
+     * the audio route for the specified device is removed from the available BT routes and the
+     * audio is routed to an available route if the current route is pointing to the device which
+     * got disconnected.
+     *
+     * Message being handled: BT_DEVICE_REMOVED
+     */
     private void handleBtDisconnected(@AudioRoute.AudioRouteType int type,
                                       BluetoothDevice bluetoothDevice) {
         // Clean up unavailable routes
@@ -624,25 +675,45 @@
 
         // Fallback to an available route
         if (Objects.equals(mCurrentRoute, bluetoothRoute)) {
-            routeTo(mIsActive, getBaseRoute(false));
+            routeTo(mIsActive, getBaseRoute(true, null));
         }
     }
 
+    /**
+     * This particular routing occurs when the specified bluetooth device is marked as the active
+     * device (refer to BluetoothStateReceiver#handleActiveDeviceChanged). This takes care of
+     * moving the call audio route to the bluetooth route.
+     *
+     * Message being handled: BT_ACTIVE_DEVICE_PRESENT
+     */
     private void handleBtActiveDevicePresent(@AudioRoute.AudioRouteType int type,
                                              String deviceAddress) {
         AudioRoute bluetoothRoute = getBluetoothRoute(type, deviceAddress);
         if (bluetoothRoute != null) {
-            Log.i(this, "request to route to bluetooth route: %s(active=%b)", bluetoothRoute,
+            Log.i(this, "request to route to bluetooth route: %s (active=%b)", bluetoothRoute,
                     mIsActive);
             routeTo(mIsActive, bluetoothRoute);
+        } else {
+            Log.i(this, "request to route to unavailable bluetooth route - type (%s), address (%s)",
+                    type, deviceAddress);
         }
     }
 
+    /**
+     * Handles routing for when the active BT device is removed for a given audio route type. In
+     * this case, the audio is routed to another available route if the current route hasn't been
+     * adjusted yet or there is a pending destination route associated with the device type that
+     * went inactive. Note that BT_DEVICE_REMOVED will be processed first in this case, which will
+     * handle removing the BT route for the device that went inactive as well as falling back to
+     * an available route.
+     *
+     * Message being handled: BT_ACTIVE_DEVICE_GONE
+     */
     private void handleBtActiveDeviceGone(@AudioRoute.AudioRouteType int type) {
         if ((mIsPending && mPendingAudioRoute.getDestRoute().getType() == type)
                 || (!mIsPending && mCurrentRoute.getType() == type)) {
             // Fallback to an available route
-            routeTo(mIsActive, getBaseRoute(true));
+            routeTo(mIsActive, getBaseRoute(true, null));
         }
     }
 
@@ -667,30 +738,38 @@
     }
 
     private void handleSwitchFocus(int focus) {
+        Log.i(this, "handleSwitchFocus: focus (%s)", focus);
         mFocusType = focus;
         switch (focus) {
             case NO_FOCUS -> {
                 if (mIsActive) {
+                    // Reset mute state after call ends.
                     handleMuteChanged(false);
+                    // Route back to inactive route.
                     routeTo(false, mCurrentRoute);
+                    // Clear pending messages
+                    mPendingAudioRoute.clearPendingMessages();
                 }
             }
             case ACTIVE_FOCUS -> {
+                // Route to active baseline route, otherwise ignore if route is already active.
                 if (!mIsActive) {
-                    routeTo(true, getBaseRoute(true));
+                    routeTo(true, getBaseRoute(true, null));
                 }
             }
             case RINGING_FOCUS -> {
                 if (!mIsActive) {
-                    AudioRoute route = getBaseRoute(true);
+                    AudioRoute route = getBaseRoute(true, null);
                     BluetoothDevice device = mBluetoothRoutes.get(route);
+                    // Check if in-band ringtone is enabled for the device; if it isn't, move to
+                    // inactive route.
                     if (device != null && !mBluetoothRouteManager.isInbandRingEnabled(device)) {
                         routeTo(false, route);
                     } else {
                         routeTo(true, route);
                     }
                 } else {
-                    // active
+                    // Route is already active.
                     BluetoothDevice device = mBluetoothRoutes.get(mCurrentRoute);
                     if (device != null && !mBluetoothRouteManager.isInbandRingEnabled(device)) {
                         routeTo(false, mCurrentRoute);
@@ -729,7 +808,7 @@
                 routeTo(mIsActive, bluetoothRoute);
             }
         } else {
-            Log.i(this, "ignore switch bluetooth request");
+            Log.i(this, "ignore switch bluetooth request to unavailable address");
         }
     }
 
@@ -738,7 +817,7 @@
         if (headsetRoute != null && getAvailableRoutes().contains(headsetRoute)) {
             routeTo(mIsActive, headsetRoute);
         } else {
-            Log.i(this, "ignore switch speaker request");
+            Log.i(this, "ignore switch headset request");
         }
     }
 
@@ -750,13 +829,16 @@
         }
     }
 
-    private void handleSwitchBaselineRoute() {
-        routeTo(mIsActive, getBaseRoute(true));
+    private void handleSwitchBaselineRoute(String btAddressToExclude) {
+        routeTo(mIsActive, getBaseRoute(true, btAddressToExclude));
     }
 
     private void handleSpeakerOn() {
         if (isPending()) {
-            mPendingAudioRoute.onMessageReceived(SPEAKER_ON);
+            Log.i(this, "handleSpeakerOn: sending SPEAKER_ON to pending audio route");
+            mPendingAudioRoute.onMessageReceived(SPEAKER_ON, null);
+            // Update status bar notification if we are in a call.
+            mStatusBarNotifier.notifySpeakerphone(mCallsManager.hasAnyCalls());
         } else {
             if (mSpeakerDockRoute != null && getAvailableRoutes().contains(mSpeakerDockRoute)) {
                 routeTo(mIsActive, mSpeakerDockRoute);
@@ -771,9 +853,12 @@
 
     private void handleSpeakerOff() {
         if (isPending()) {
-            mPendingAudioRoute.onMessageReceived(SPEAKER_OFF);
+            Log.i(this, "handleSpeakerOff - sending SPEAKER_OFF to pending audio route");
+            mPendingAudioRoute.onMessageReceived(SPEAKER_OFF, null);
+            // Update status bar notification
+            mStatusBarNotifier.notifySpeakerphone(false);
         } else if (mCurrentRoute.getType() == AudioRoute.TYPE_SPEAKER) {
-            routeTo(mIsActive, getBaseRoute(true));
+            routeTo(mIsActive, getBaseRoute(true, null));
             // Since the route switching triggered by this message, we need to manually send it
             // again so that we won't stuck in the pending route
             if (mIsActive) {
@@ -783,11 +868,15 @@
         }
     }
 
+    /**
+     * This is invoked when there are no more pending audio routes to be processed, which signals
+     * a change for the current audio route and the call audio state to be updated accordingly.
+     */
     public void handleExitPendingRoute() {
         if (mIsPending) {
-            Log.i(this, "Exit pending route and enter %s(active=%b)",
-                    mPendingAudioRoute.getDestRoute(), mIsActive);
             mCurrentRoute = mPendingAudioRoute.getDestRoute();
+            Log.addEvent(mCallsManager.getForegroundCall(), LogUtils.Events.AUDIO_ROUTE,
+                    "Entering audio route: " + mCurrentRoute + " (active=" + mIsActive + ")");
             mIsPending = false;
             onCurrentRouteChanged();
         }
@@ -817,7 +906,20 @@
             for (AudioRoute route : getAvailableRoutes()) {
                 routeMask |= ROUTE_MAP.get(route.getType());
                 if (BT_AUDIO_ROUTE_TYPES.contains(route.getType())) {
-                    availableBluetoothDevices.add(mBluetoothRoutes.get(route));
+                    BluetoothDevice deviceToAdd = mBluetoothRoutes.get(route);
+                    // Only include the lead device for LE audio (otherwise, the routes will show
+                    // two separate devices in the UI).
+                    if (route.getType() == AudioRoute.TYPE_BLUETOOTH_LE) {
+                        int groupId = getLeAudioService().getGroupId(deviceToAdd);
+                        if (groupId != BluetoothLeAudio.GROUP_ID_INVALID) {
+                            deviceToAdd = getLeAudioService().getConnectedGroupLeadDevice(groupId);
+                        }
+                    }
+                    // This will only ever be null when the lead device (LE) is disconnected and
+                    // try to obtain the lead device for the 2nd bud.
+                    if (deviceToAdd != null) {
+                        availableBluetoothDevices.add(deviceToAdd);
+                    }
                 }
             }
             updateCallAudioState(new CallAudioState(mIsMute, mCallAudioState.getRoute(), routeMask,
@@ -831,10 +933,12 @@
                 mCallAudioState.getSupportedBluetoothDevices()));
     }
 
-    private void updateCallAudioState(CallAudioState callAudioState) {
-        Log.i(this, "updateCallAudioState: " + callAudioState);
+    private void updateCallAudioState(CallAudioState newCallAudioState) {
+        Log.i(this, "updateCallAudioState: updating call audio state to %s", newCallAudioState);
         CallAudioState oldState = mCallAudioState;
-        mCallAudioState = callAudioState;
+        mCallAudioState = newCallAudioState;
+        // Update status bar notification
+        mStatusBarNotifier.notifyMute(newCallAudioState.isMuted());
         mCallsManager.onCallAudioStateChanged(oldState, mCallAudioState);
         updateAudioStateForTrackedCalls(mCallAudioState);
     }
@@ -866,6 +970,7 @@
 
         // Get preferred device
         AudioDeviceAttributes deviceAttr = mAudioManager.getPreferredDeviceForStrategy(strategy);
+        Log.i(this, "getPreferredAudioRouteFromStrategy: preferred device is %s", deviceAttr);
         if (deviceAttr == null) {
             return null;
         }
@@ -881,16 +986,32 @@
         }
     }
 
-    private AudioRoute getPreferredAudioRouteFromDefault(boolean includeBluetooth) {
-        if (mBluetoothRoutes.isEmpty() || !includeBluetooth) {
+    private AudioRoute getPreferredAudioRouteFromDefault(boolean includeBluetooth,
+            String btAddressToExclude) {
+        // Route to earpiece, wired, or speaker route if there are not bluetooth routes or if there
+        // are only wearables available.
+        AudioRoute activeWatchOrNonWatchDeviceRoute =
+                getActiveWatchOrNonWatchDeviceRoute(btAddressToExclude);
+        if (mBluetoothRoutes.isEmpty() || !includeBluetooth
+                || activeWatchOrNonWatchDeviceRoute == null) {
+            Log.i(this, "getPreferredAudioRouteFromDefault: Audio routing defaulting to "
+                    + "available non-BT route.");
             return mEarpieceWiredRoute != null ? mEarpieceWiredRoute : mSpeakerDockRoute;
         } else {
-            // Most recent active route will always be the last in the array
-            return mBluetoothRoutes.keySet().stream().toList().get(mBluetoothRoutes.size() - 1);
+            // Most recent active route will always be the last in the array (ensure that we don't
+            // auto route to a wearable device unless it's already active).
+            String autoRoutingToWatchExcerpt = mFeatureFlags.ignoreAutoRouteToWatchDevice()
+                    ? " (except watch)"
+                    : "";
+            Log.i(this, "getPreferredAudioRouteFromDefault: Audio routing defaulting to "
+                    + "most recently active BT route" + autoRoutingToWatchExcerpt + ".");
+            return activeWatchOrNonWatchDeviceRoute;
         }
     }
 
-    private int calculateSupportedRouteMask() {
+    private int calculateSupportedRouteMaskInit() {
+        Log.i(this, "calculateSupportedRouteMaskInit: is wired headset plugged in - %s",
+                mWiredHeadsetManager.isPluggedIn());
         int routeMask = CallAudioState.ROUTE_SPEAKER;
 
         if (mWiredHeadsetManager.isPluggedIn()) {
@@ -931,17 +1052,139 @@
         return null;
     }
 
-    public AudioRoute getBaseRoute(boolean includeBluetooth) {
+    public AudioRoute getBaseRoute(boolean includeBluetooth, String btAddressToExclude) {
         AudioRoute destRoute = getPreferredAudioRouteFromStrategy();
         if (destRoute == null) {
-            destRoute = getPreferredAudioRouteFromDefault(includeBluetooth);
+            destRoute = getPreferredAudioRouteFromDefault(includeBluetooth, btAddressToExclude);
         }
         if (destRoute != null && !getAvailableRoutes().contains(destRoute)) {
             destRoute = null;
         }
+        Log.i(this, "getBaseRoute - audio routing to %s", destRoute);
         return destRoute;
     }
 
+    /**
+     * Don't add additional AudioRoute when a hearing aid pair is detected. The devices have
+     * separate addresses, so we need to perform explicit handling to ensure we don't
+     * treat them as two separate devices.
+     */
+    private boolean containsHearingAidPair(@AudioRoute.AudioRouteType int type,
+            BluetoothDevice bluetoothDevice) {
+        // Check if it is a hearing aid pair and skip connecting to the other device in this case.
+        // Traverse mBluetoothRoutes backwards as the most recently active device will be inserted
+        // last.
+        String existingHearingAidAddress = null;
+        List<AudioRoute> bluetoothRoutes = mBluetoothRoutes.keySet().stream().toList();
+        for (int i = bluetoothRoutes.size() - 1; i >= 0; i--) {
+            AudioRoute audioRoute = bluetoothRoutes.get(i);
+            if (audioRoute.getType() == AudioRoute.TYPE_BLUETOOTH_HA) {
+                existingHearingAidAddress = audioRoute.getBluetoothAddress();
+                break;
+            }
+        }
+
+        // Check that route is for hearing aid and that there exists another hearing aid route
+        // created for the first device (of the pair) that was connected.
+        if (type == AudioRoute.TYPE_BLUETOOTH_HA && existingHearingAidAddress != null) {
+            BluetoothAdapter bluetoothAdapter = mBluetoothRouteManager.getDeviceManager()
+                    .getBluetoothAdapter();
+            if (bluetoothAdapter != null) {
+                List<BluetoothDevice> activeHearingAids =
+                        bluetoothAdapter.getActiveDevices(BluetoothProfile.HEARING_AID);
+                for (BluetoothDevice hearingAid : activeHearingAids) {
+                    if (hearingAid != null && hearingAid.getAddress() != null) {
+                        String address = hearingAid.getAddress();
+                        if (address.equals(bluetoothDevice.getAddress())
+                                || address.equals(existingHearingAidAddress)) {
+                            Log.i(this, "containsHearingAidPair: Detected a hearing aid "
+                                    + "pair, ignoring creating a new AudioRoute");
+                            return true;
+                        }
+                    }
+                }
+            }
+        }
+        return false;
+    }
+
+    /**
+     * Prevent auto routing to a wearable device when calculating the default bluetooth audio route
+     * to move to. This function ensures that the most recently active non-wearable device is
+     * selected for routing unless a wearable device has already been identified as an active
+     * device.
+     */
+    private AudioRoute getActiveWatchOrNonWatchDeviceRoute(String btAddressToExclude) {
+        if (!mFeatureFlags.ignoreAutoRouteToWatchDevice()) {
+            Log.i(this, "getActiveWatchOrNonWatchDeviceRoute: ignore_auto_route_to_watch_device "
+                    + "flag is disabled. Routing to most recently reported active device.");
+            return getMostRecentlyActiveBtRoute(btAddressToExclude);
+        }
+
+        List<AudioRoute> bluetoothRoutes = mBluetoothRoutes.keySet().stream().toList();
+        // Traverse the routes from the most recently active recorded devices first.
+        AudioRoute nonWatchDeviceRoute = null;
+        for (int i = bluetoothRoutes.size() - 1; i >= 0; i--) {
+            AudioRoute route = bluetoothRoutes.get(i);
+            BluetoothDevice device = mBluetoothRoutes.get(route);
+            // Skip excluded BT address and LE audio if it's not the lead device.
+            if (route.getBluetoothAddress().equals(btAddressToExclude)
+                    || isLeAudioNonLeadDevice(route.getType(), device)) {
+                continue;
+            }
+            // Check if the most recently active device is a watch device.
+            if (i == (bluetoothRoutes.size() - 1) && device.equals(mCallAudioState
+                    .getActiveBluetoothDevice()) && mBluetoothRouteManager.isWatch(device)) {
+                Log.i(this, "getActiveWatchOrNonWatchDeviceRoute: Routing to active watch - %s",
+                        bluetoothRoutes.get(0));
+                return bluetoothRoutes.get(0);
+            }
+            // Record the first occurrence of a non-watch device route if found.
+            if (!mBluetoothRouteManager.isWatch(device) && nonWatchDeviceRoute == null) {
+                nonWatchDeviceRoute = route;
+                break;
+            }
+        }
+
+        Log.i(this, "Routing to a non-watch device - %s", nonWatchDeviceRoute);
+        return nonWatchDeviceRoute;
+    }
+
+    /**
+     * Returns the most actively reported bluetooth route excluding the passed in route.
+     */
+    private AudioRoute getMostRecentlyActiveBtRoute(String btAddressToExclude) {
+        List<AudioRoute> bluetoothRoutes = mBluetoothRoutes.keySet().stream().toList();
+        for (int i = bluetoothRoutes.size() - 1; i >= 0; i--) {
+            AudioRoute route = bluetoothRoutes.get(i);
+            // Skip LE route if it's not the lead device.
+            if (isLeAudioNonLeadDevice(route.getType(), mBluetoothRoutes.get(route))) {
+                continue;
+            }
+            if (!route.getBluetoothAddress().equals(btAddressToExclude)) {
+                return route;
+            }
+        }
+        return null;
+    }
+
+    private boolean isLeAudioNonLeadDevice(@AudioRoute.AudioRouteType int type,
+            BluetoothDevice device) {
+        if (type != AudioRoute.TYPE_BLUETOOTH_LE) {
+            return false;
+        }
+        int groupId = getLeAudioService().getGroupId(device);
+        if (groupId != BluetoothLeAudio.GROUP_ID_INVALID) {
+            return !device.getAddress().equals(
+                    getLeAudioService().getConnectedGroupLeadDevice(groupId).getAddress());
+        }
+        return false;
+    }
+
+    private BluetoothLeAudio getLeAudioService() {
+        return mBluetoothRouteManager.getDeviceManager().getLeAudioService();
+    }
+
     @VisibleForTesting
     public void setAudioManager(AudioManager audioManager) {
         mAudioManager = audioManager;
diff --git a/src/com/android/server/telecom/CallAudioRouteStateMachine.java b/src/com/android/server/telecom/CallAudioRouteStateMachine.java
index 26c25e8..621ba36 100644
--- a/src/com/android/server/telecom/CallAudioRouteStateMachine.java
+++ b/src/com/android/server/telecom/CallAudioRouteStateMachine.java
@@ -2095,7 +2095,14 @@
         return base;
     }
 
+    @Override
     public Handler getAdapterHandler() {
         return getHandler();
     }
+
+    @Override
+    public PendingAudioRoute getPendingAudioRoute() {
+        // Only used by CallAudioRouteController.
+        return null;
+    }
 }
diff --git a/src/com/android/server/telecom/CallEndpointController.java b/src/com/android/server/telecom/CallEndpointController.java
index 4738cd4..49c0d51 100644
--- a/src/com/android/server/telecom/CallEndpointController.java
+++ b/src/com/android/server/telecom/CallEndpointController.java
@@ -27,6 +27,7 @@
 import android.telecom.Log;
 
 import com.android.internal.annotations.VisibleForTesting;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import java.util.HashMap;
 import java.util.Map;
@@ -49,6 +50,7 @@
 
     private final Context mContext;
     private final CallsManager mCallsManager;
+    private final FeatureFlags mFeatureFlags;
     private final HashMap<Integer, Integer> mRouteToTypeMap;
     private final HashMap<Integer, Integer> mTypeToRouteMap;
     private final Map<ParcelUuid, String> mBluetoothAddressMap = new HashMap<>();
@@ -57,10 +59,10 @@
     private ParcelUuid mRequestedEndpointId;
     private CompletableFuture<Integer> mPendingChangeRequest;
 
-    public CallEndpointController(Context context, CallsManager callsManager) {
+    public CallEndpointController(Context context, CallsManager callsManager, FeatureFlags flags) {
         mContext = context;
         mCallsManager = callsManager;
-
+        mFeatureFlags = flags;
         mRouteToTypeMap = new HashMap<>(5);
         mRouteToTypeMap.put(CallAudioState.ROUTE_EARPIECE, CallEndpoint.TYPE_EARPIECE);
         mRouteToTypeMap.put(CallAudioState.ROUTE_BLUETOOTH, CallEndpoint.TYPE_BLUETOOTH);
@@ -197,43 +199,91 @@
 
         Set<Call> calls = mCallsManager.getTrackedCalls();
         for (Call call : calls) {
-            if (call != null && call.getConnectionService() != null) {
-                call.getConnectionService().onCallEndpointChanged(call, mActiveCallEndpoint);
-            } else if (call != null && call.getTransactionServiceWrapper() != null) {
-                call.getTransactionServiceWrapper()
-                        .onCallEndpointChanged(call, mActiveCallEndpoint);
+            if (mFeatureFlags.cacheCallAudioCallbacks()) {
+                onCallEndpointChangedOrCache(call);
+            } else {
+                if (call != null && call.getConnectionService() != null) {
+                    call.getConnectionService().onCallEndpointChanged(call, mActiveCallEndpoint);
+                } else if (call != null && call.getTransactionServiceWrapper() != null) {
+                    call.getTransactionServiceWrapper()
+                            .onCallEndpointChanged(call, mActiveCallEndpoint);
+                }
             }
         }
     }
 
+    private void onCallEndpointChangedOrCache(Call call) {
+        if (call == null) {
+            return;
+        }
+        CallSourceService service = call.getService();
+        if (service != null) {
+            service.onCallEndpointChanged(call, mActiveCallEndpoint);
+        } else {
+            call.cacheServiceCallback(new CachedCurrentEndpointChange(mActiveCallEndpoint));
+        }
+    }
+
     private void notifyAvailableCallEndpointsChange() {
         mCallsManager.updateAvailableCallEndpoints(mAvailableCallEndpoints);
 
         Set<Call> calls = mCallsManager.getTrackedCalls();
         for (Call call : calls) {
-            if (call != null && call.getConnectionService() != null) {
-                call.getConnectionService().onAvailableCallEndpointsChanged(call,
-                        mAvailableCallEndpoints);
-            } else if (call != null && call.getTransactionServiceWrapper() != null) {
-                call.getTransactionServiceWrapper()
-                        .onAvailableCallEndpointsChanged(call, mAvailableCallEndpoints);
+            if (mFeatureFlags.cacheCallAudioCallbacks()) {
+                onAvailableEndpointsChangedOrCache(call);
+            } else {
+                if (call != null && call.getConnectionService() != null) {
+                    call.getConnectionService().onAvailableCallEndpointsChanged(call,
+                            mAvailableCallEndpoints);
+                } else if (call != null && call.getTransactionServiceWrapper() != null) {
+                    call.getTransactionServiceWrapper().onAvailableCallEndpointsChanged(call,
+                            mAvailableCallEndpoints);
+                }
             }
         }
     }
 
+    private void onAvailableEndpointsChangedOrCache(Call call) {
+        if (call == null) {
+            return;
+        }
+        CallSourceService service = call.getService();
+        if (service != null) {
+            service.onAvailableCallEndpointsChanged(call, mAvailableCallEndpoints);
+        } else {
+            call.cacheServiceCallback(new CachedAvailableEndpointsChange(mAvailableCallEndpoints));
+        }
+    }
+
     private void notifyMuteStateChange(boolean isMuted) {
         mCallsManager.updateMuteState(isMuted);
 
         Set<Call> calls = mCallsManager.getTrackedCalls();
         for (Call call : calls) {
-            if (call != null && call.getConnectionService() != null) {
-                call.getConnectionService().onMuteStateChanged(call, isMuted);
-            } else if (call != null && call.getTransactionServiceWrapper() != null) {
-                call.getTransactionServiceWrapper().onMuteStateChanged(call, isMuted);
+            if (mFeatureFlags.cacheCallAudioCallbacks()) {
+                onMuteStateChangedOrCache(call, isMuted);
+            } else {
+                if (call != null && call.getConnectionService() != null) {
+                    call.getConnectionService().onMuteStateChanged(call, isMuted);
+                } else if (call != null && call.getTransactionServiceWrapper() != null) {
+                    call.getTransactionServiceWrapper().onMuteStateChanged(call, isMuted);
+                }
             }
         }
     }
 
+    private void onMuteStateChangedOrCache(Call call, boolean isMuted){
+        if (call == null) {
+            return;
+        }
+        CallSourceService service = call.getService();
+        if (service != null) {
+            service.onMuteStateChanged(call, isMuted);
+        } else {
+            call.cacheServiceCallback(new CachedMuteStateChange(isMuted));
+        }
+    }
+
     private void createAvailableCallEndpoints(CallAudioState state) {
         Set<CallEndpoint> newAvailableEndpoints = new HashSet<>();
         Map<ParcelUuid, String> newBluetoothDevices = new HashMap<>();
diff --git a/src/com/android/server/telecom/CallIntentProcessor.java b/src/com/android/server/telecom/CallIntentProcessor.java
index c02d20d..a100185 100644
--- a/src/com/android/server/telecom/CallIntentProcessor.java
+++ b/src/com/android/server/telecom/CallIntentProcessor.java
@@ -168,13 +168,15 @@
 
         if (!callsManager.isSelfManaged(phoneAccountHandle,
                 (UserHandle) intent.getParcelableExtra(KEY_INITIATING_USER))) {
-            boolean fixedInitiatingUser = fixInitiatingUserIfNecessary(context, intent);
+            boolean fixedInitiatingUser = fixInitiatingUserIfNecessary(
+                    context, intent, featureFlags);
             // Show the toast to warn user that it is a personal call though initiated in work
             // profile.
             if (fixedInitiatingUser) {
                 if (featureFlags.telecomResolveHiddenDependencies()) {
-                    Toast.makeText(context, context.getString(R.string.toast_personal_call_msg),
-                            Toast.LENGTH_LONG).show();
+                    context.getMainExecutor().execute(() ->
+                            Toast.makeText(context, context.getString(
+                                    R.string.toast_personal_call_msg), Toast.LENGTH_LONG).show());
                 } else {
                     Toast.makeText(context, Looper.getMainLooper(),
                             context.getString(R.string.toast_personal_call_msg),
@@ -226,16 +228,18 @@
      *
      * @return whether the initiating user is fixed.
      */
-    static boolean fixInitiatingUserIfNecessary(Context context, Intent intent) {
+    static boolean fixInitiatingUserIfNecessary(Context context, Intent intent,
+            FeatureFlags featureFlags) {
         final UserHandle initiatingUser = intent.getParcelableExtra(KEY_INITIATING_USER);
-        if (UserUtil.isManagedProfile(context, initiatingUser)) {
+        if (UserUtil.isManagedProfile(context, initiatingUser, featureFlags)) {
             boolean noDialerInstalled = DefaultDialerManager.getInstalledDialerApplications(context,
                     initiatingUser.getIdentifier()).size() == 0;
             if (noDialerInstalled) {
-                final UserManager userManager = UserManager.get(context);
-                UserHandle parentUserHandle =
-                        userManager.getProfileParent(
-                                initiatingUser.getIdentifier()).getUserHandle();
+                final UserManager userManager = context.getSystemService(UserManager.class);
+                UserHandle parentUserHandle = featureFlags.telecomResolveHiddenDependencies()
+                        ? userManager.getProfileParent(initiatingUser)
+                        : userManager.getProfileParent(initiatingUser.getIdentifier())
+                                .getUserHandle();
                 intent.putExtra(KEY_INITIATING_USER, parentUserHandle);
 
                 Log.i(CallIntentProcessor.class, "fixInitiatingUserIfNecessary: no dialer installed"
diff --git a/src/com/android/server/telecom/CallLogManager.java b/src/com/android/server/telecom/CallLogManager.java
index 56c568f..dc9e2ea 100644
--- a/src/com/android/server/telecom/CallLogManager.java
+++ b/src/com/android/server/telecom/CallLogManager.java
@@ -254,12 +254,11 @@
                 return false;
             }
 
-            PersistableBundle b = mCarrierConfigManager.getConfigForSubId(subscriptionId);
-            if (b == null) {
+            if (mCarrierConfigManager == null) {
                 return false;
             }
-
-            if (b.getBoolean(KEY_SUPPORT_IMS_CONFERENCE_EVENT_PACKAGE_BOOL, true)) {
+            PersistableBundle b = mCarrierConfigManager.getConfigForSubId(subscriptionId);
+            if (b == null || b.getBoolean(KEY_SUPPORT_IMS_CONFERENCE_EVENT_PACKAGE_BOOL, true)) {
                 return false;
             }
         }
@@ -369,7 +368,7 @@
         if (phoneAccount != null &&
                 phoneAccount.hasCapabilities(PhoneAccount.CAPABILITY_MULTI_USER)) {
             if (initiatingUser != null &&
-                    UserUtil.isManagedProfile(mContext, initiatingUser)) {
+                    UserUtil.isManagedProfile(mContext, initiatingUser, mFeatureFlags)) {
                 paramBuilder.setUserToBeInsertedTo(initiatingUser);
                 paramBuilder.setAddForAllUsers(false);
             } else {
@@ -575,17 +574,10 @@
                 AddCallArgs c = callList[i];
                 mListeners[i] = c.logCallCompletedListener;
                 try {
-                    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) {
+                    Log.i(TAG, "LogCall; logged callId=%s, uri=%s",
+                            c.call.getId(), result[i]);
+                    if (result[i] == null) {
                         // 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
@@ -686,52 +678,6 @@
         }
     }
 
-    /**
-     * 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/CallSourceService.java b/src/com/android/server/telecom/CallSourceService.java
new file mode 100644
index 0000000..132118b
--- /dev/null
+++ b/src/com/android/server/telecom/CallSourceService.java
@@ -0,0 +1,38 @@
+/*
+ * 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;
+
+import android.telecom.CallEndpoint;
+
+import java.util.Set;
+
+/**
+ * android.telecom.Call backed Services (i.e. ConnectionService, TransactionalService, etc.) that
+ * have callbacks that can be executed before the service is set (within the Call object) should
+ * implement this interface in order for clients to receive the callback.
+ *
+ * It has been shown that clients can miss important callback information (e.g. available audio
+ * endpoints) if the service is null within the call at the time the callback is sent.  This is a
+ * way to eliminate the timing issue and for clients to receive all callbacks.
+ */
+public interface CallSourceService {
+    void onMuteStateChanged(Call activeCall, boolean isMuted);
+
+    void onCallEndpointChanged(Call activeCall, CallEndpoint callEndpoint);
+
+    void onAvailableCallEndpointsChanged(Call activeCall, Set<CallEndpoint> availableCallEndpoints);
+}
diff --git a/src/com/android/server/telecom/CallsManager.java b/src/com/android/server/telecom/CallsManager.java
index f4b7840..c3eb3b8 100644
--- a/src/com/android/server/telecom/CallsManager.java
+++ b/src/com/android/server/telecom/CallsManager.java
@@ -79,7 +79,7 @@
 import android.os.UserHandle;
 import android.os.UserManager;
 import android.provider.BlockedNumberContract;
-import android.provider.BlockedNumberContract.BlockedNumbers;
+import android.provider.BlockedNumbersManager;
 import android.provider.CallLog.Calls;
 import android.provider.Settings;
 import android.telecom.CallAttributes;
@@ -488,6 +488,7 @@
     private final TransactionManager mTransactionManager;
     private final UserManager mUserManager;
     private final CallStreamingNotification mCallStreamingNotification;
+    private final BlockedNumbersManager mBlockedNumbersManager;
     private final FeatureFlags mFeatureFlags;
     private final com.android.internal.telephony.flags.FeatureFlags mTelephonyFeatureFlags;
 
@@ -556,7 +557,8 @@
         public void onReceive(Context context, Intent intent) {
             String action = intent.getAction();
             if (CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED.equals(action)
-                    || BlockedNumbers.ACTION_BLOCK_SUPPRESSION_STATE_CHANGED.equals(action)) {
+                    || BlockedNumbersManager
+                    .ACTION_BLOCK_SUPPRESSION_STATE_CHANGED.equals(action)) {
                 updateEmergencyCallNotificationAsync(context);
             }
         }
@@ -652,7 +654,8 @@
             );
         } else {
             callAudioRouteAdapter = new CallAudioRouteController(context, this, audioServiceFactory,
-                    new AudioRoute.Factory(), wiredHeadsetManager, mBluetoothRouteManager);
+                    new AudioRoute.Factory(), wiredHeadsetManager, mBluetoothRouteManager,
+                    statusBarNotifier, featureFlags);
         }
         callAudioRouteAdapter.initialize();
         bluetoothStateReceiver.setCallAudioRouteAdapter(callAudioRouteAdapter);
@@ -675,7 +678,7 @@
                 () -> audioManager.getStreamVolume(AudioManager.STREAM_RING) > 0);
 
         SystemSettingsUtil systemSettingsUtil = new SystemSettingsUtil();
-        RingtoneFactory ringtoneFactory = new RingtoneFactory(this, context);
+        RingtoneFactory ringtoneFactory = new RingtoneFactory(this, context, featureFlags);
         SystemVibrator systemVibrator = new SystemVibrator(context);
         mInCallController = inCallControllerFactory.create(context, mLock, this,
                 systemStateHelper, defaultDialerCache, mTimeoutsAdapter,
@@ -718,6 +721,9 @@
         mCallStreamingNotification = callStreamingNotification;
         mFeatureFlags = featureFlags;
         mTelephonyFeatureFlags = telephonyFlags;
+        mBlockedNumbersManager = mFeatureFlags.telecomMainlineBlockedNumbersManager()
+                ? mContext.getSystemService(BlockedNumbersManager.class)
+                : null;
 
         if (mFeatureFlags.useImprovedListenerOrder()) {
             mListeners.add(mInCallController);
@@ -749,7 +755,7 @@
         mVoipCallMonitor.startMonitor();
 
         // There is no USER_SWITCHED broadcast for user 0, handle it here explicitly.
-        final UserManager userManager = UserManager.get(mContext);
+        final UserManager userManager = mContext.getSystemService(UserManager.class);
         // Don't load missed call if it is run in split user model.
         if (userManager.isPrimaryUser()) {
             onUserSwitch(Process.myUserHandle());
@@ -758,7 +764,7 @@
         IntentFilter intentFilter = new IntentFilter(
                 CarrierConfigManager.ACTION_CARRIER_CONFIG_CHANGED);
         intentFilter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY);
-        intentFilter.addAction(BlockedNumbers.ACTION_BLOCK_SUPPRESSION_STATE_CHANGED);
+        intentFilter.addAction(BlockedNumbersManager.ACTION_BLOCK_SUPPRESSION_STATE_CHANGED);
         context.registerReceiver(mReceiver, intentFilter, Context.RECEIVER_EXPORTED);
         mGraphHandlerThreads = new LinkedList<>();
 
@@ -851,10 +857,16 @@
                 ? new Bundle()
                 : phoneAccount.getExtras();
         TelephonyManager telephonyManager = getTelephonyManager();
+        boolean isInEmergencySmsMode;
+        try {
+            isInEmergencySmsMode = telephonyManager.isInEmergencySmsMode();
+        } catch (UnsupportedOperationException uoe) {
+            isInEmergencySmsMode = false;
+        }
         boolean performDndFilter = mFeatureFlags.skipFilterPhoneAccountPerformDndFilter();
         if (incomingCall.hasProperty(Connection.PROPERTY_EMERGENCY_CALLBACK_MODE) ||
                 incomingCall.hasProperty(Connection.PROPERTY_NETWORK_IDENTIFIED_EMERGENCY_CALL) ||
-                telephonyManager.isInEmergencySmsMode() ||
+                isInEmergencySmsMode ||
                 incomingCall.isSelfManaged() ||
                 (!performDndFilter && extras.getBoolean(PhoneAccount.EXTRA_SKIP_CALL_FILTERING))) {
             Log.i(this, "Skipping call filtering for %s (ecm=%b, "
@@ -863,7 +875,7 @@
                     incomingCall.getId(),
                     incomingCall.hasProperty(Connection.PROPERTY_EMERGENCY_CALLBACK_MODE),
                     incomingCall.hasProperty(Connection.PROPERTY_NETWORK_IDENTIFIED_EMERGENCY_CALL),
-                    telephonyManager.isInEmergencySmsMode(),
+                    isInEmergencySmsMode,
                     incomingCall.isSelfManaged(),
                     extras.getBoolean(PhoneAccount.EXTRA_SKIP_CALL_FILTERING));
             onCallFilteringComplete(incomingCall, new Builder()
@@ -912,7 +924,7 @@
         DirectToVoicemailFilter voicemailFilter = new DirectToVoicemailFilter(incomingCall,
                 mCallerInfoLookupHelper);
         BlockCheckerFilter blockCheckerFilter = new BlockCheckerFilter(mContext, incomingCall,
-                mCallerInfoLookupHelper, new BlockCheckerAdapter());
+                mCallerInfoLookupHelper, new BlockCheckerAdapter(mFeatureFlags));
         DndCallFilter dndCallFilter = new DndCallFilter(incomingCall, getRinger());
         CallScreeningServiceFilter carrierCallScreeningServiceFilter =
                 new CallScreeningServiceFilter(incomingCall, carrierPackageName,
@@ -947,6 +959,7 @@
         ComponentName componentName = null;
         CarrierConfigManager configManager = (CarrierConfigManager) mContext.getSystemService
                 (Context.CARRIER_CONFIG_SERVICE);
+        if (configManager == null) return null;
         PersistableBundle configBundle = configManager.getConfig();
         if (configBundle != null) {
             componentName = ComponentName.unflattenFromString(configBundle.getString
@@ -1400,7 +1413,7 @@
         return mCallEndpointController;
     }
 
-    EmergencyCallHelper getEmergencyCallHelper() {
+    public EmergencyCallHelper getEmergencyCallHelper() {
         return mEmergencyCallHelper;
     }
 
@@ -1677,9 +1690,15 @@
         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());
+        UserManager currentUserManager = mContext.createContextAsUser(mCurrentUserHandle, 0)
+                .getSystemService(UserManager.class);
+        boolean isCurrentUserAdmin = mFeatureFlags.telecomResolveHiddenDependencies()
+                ? currentUserManager.isAdminUser()
+                : mUserManager.isUserAdmin(mCurrentUserHandle.getIdentifier());
+        if (isCurrentUserAdmin) {
+            isCallHiddenFromProfile &= mFeatureFlags.telecomResolveHiddenDependencies()
+                    ? currentUserManager.isQuietModeEnabled(call.getAssociatedUser())
+                    : mUserManager.isQuietModeEnabled(call.getAssociatedUser());
         }
 
         // We should always allow emergency calls and also allow non-emergency calls when ECBM
@@ -1902,19 +1921,25 @@
 
             // Log info for emergency call
             if (call.isEmergencyCall()) {
-                String simNumeric = "";
-                String networkNumeric = "";
-                int defaultVoiceSubId = SubscriptionManager.getDefaultVoiceSubscriptionId();
-                if (defaultVoiceSubId != SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
-                    TelephonyManager tm = getTelephonyManager().createForSubscriptionId(
-                            defaultVoiceSubId);
-                    CellIdentity cellIdentity = tm.getLastKnownCellIdentity();
-                    simNumeric = tm.getSimOperatorNumeric();
-                    networkNumeric = (cellIdentity != null) ? cellIdentity.getPlmn() : "";
-                }
-                TelecomStatsLog.write(TelecomStatsLog.EMERGENCY_NUMBER_DIALED,
+                try {
+                    String simNumeric = "";
+                    String networkNumeric = "";
+                    int defaultVoiceSubId = SubscriptionManager.getDefaultVoiceSubscriptionId();
+                    if (defaultVoiceSubId != SubscriptionManager.INVALID_SUBSCRIPTION_ID) {
+                        TelephonyManager tm = getTelephonyManager().createForSubscriptionId(
+                                defaultVoiceSubId);
+                        CellIdentity cellIdentity = tm.getLastKnownCellIdentity();
+                        simNumeric = tm.getSimOperatorNumeric();
+                        networkNumeric = (cellIdentity != null) ? cellIdentity.getPlmn() : "";
+                    }
+                    TelecomStatsLog.write(TelecomStatsLog.EMERGENCY_NUMBER_DIALED,
                             handle.getSchemeSpecificPart(),
                             callingPackage, simNumeric, networkNumeric);
+                } catch (UnsupportedOperationException uoe) {
+                    // Ignore; likely we should not be able to get here since emergency calls
+                    // require Telephony at the current time, however that could change in the
+                    // future, so we best be safe.
+                }
             }
 
             // Ensure new calls related to self-managed calls/connections are set as such.  This
@@ -2136,7 +2161,7 @@
                                 Uri callUri = callToPlace.getHandle();
                                 if (PhoneAccount.SCHEME_TEL.equals(callUri.getScheme())) {
                                     int managedProfileUserId = getManagedProfileUserId(mContext,
-                                            initiatingUser.getIdentifier());
+                                            initiatingUser.getIdentifier(), mFeatureFlags);
                                     if (managedProfileUserId != UserHandle.USER_NULL
                                             &&
                                             mPhoneAccountRegistrar.getCallCapablePhoneAccounts(
@@ -2176,11 +2201,16 @@
                             // 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);
+                                // SubscriptionManager will throw if FEATURE_TELEPHONY_SUBSCRIPTION
+                                // is not present.
+                                if (mContext.getPackageManager().hasSystemFeature(
+                                        PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)) {
+                                    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);
+                                    }
                                 }
                             }
 
@@ -2311,15 +2341,35 @@
         return mLatestPostSelectionProcessingFuture;
     }
 
-    private static int getManagedProfileUserId(Context context, int userId) {
-        UserManager um = context.getSystemService(UserManager.class);
-        List<UserInfo> userProfiles = um.getProfiles(userId);
-        for (UserInfo uInfo : userProfiles) {
-            if (uInfo.id == userId) {
-                continue;
+    private static int getManagedProfileUserId(Context context, int userId,
+            FeatureFlags featureFlags) {
+        UserManager um;
+        UserHandle userHandle = UserHandle.of(userId);
+        um = featureFlags.telecomResolveHiddenDependencies()
+                ? context.createContextAsUser(userHandle, 0).getSystemService(UserManager.class)
+                : context.getSystemService(UserManager.class);
+
+        if (featureFlags.telecomResolveHiddenDependencies()) {
+            List<UserHandle> userProfiles = um.getAllProfiles();
+            for (UserHandle userProfile : userProfiles) {
+                UserManager profileUserManager = context.createContextAsUser(userProfile, 0)
+                        .getSystemService(UserManager.class);
+                if (userProfile.getIdentifier() == userId) {
+                    continue;
+                }
+                if (profileUserManager.isManagedProfile()) {
+                    return userProfile.getIdentifier();
+                }
             }
-            if (uInfo.isManagedProfile()) {
-                return uInfo.id;
+        } else {
+            List<UserInfo> userInfoProfiles = um.getProfiles(userId);
+            for (UserInfo uInfo : userInfoProfiles) {
+                if (uInfo.id == userId) {
+                    continue;
+                }
+                if (uInfo.isManagedProfile()) {
+                    return uInfo.id;
+                }
             }
         }
         return UserHandle.USER_NULL;
@@ -2432,8 +2482,8 @@
          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())) {
+         if (UserUtil.hasOutgoingCallsUserRestriction(mContext, initiatingUser, null,
+                 isSelfManaged, CallsManager.class.getCanonicalName(), mFeatureFlags)) {
              return;
          }
          CompletableFuture<Call> callFuture = startOutgoingCall(participants, phoneAccountHandle,
@@ -2644,6 +2694,9 @@
             isEmergencyNumber =
                     handle != null && getTelephonyManager().isEmergencyNumber(
                             handle.getSchemeSpecificPart());
+        } catch (UnsupportedOperationException uoe) {
+            // If device has no telephony, we can't check if it is an emergency call.
+            isEmergencyNumber = false;
         } catch (IllegalStateException ise) {
             isEmergencyNumber = false;
         } catch (RuntimeException r) {
@@ -2932,9 +2985,13 @@
         }
 
         if (call.isEmergencyCall()) {
-            Executors.defaultThreadFactory().newThread(() ->
-                    BlockedNumberContract.BlockedNumbers.notifyEmergencyContact(mContext))
-                    .start();
+            Executors.defaultThreadFactory().newThread(() -> {
+                if (mBlockedNumbersManager != null) {
+                    mBlockedNumbersManager.notifyEmergencyContact();
+                } else {
+                    BlockedNumberContract.SystemContract.notifyEmergencyContact(mContext);
+                }
+            }).start();
         }
 
         final boolean requireCallCapableAccountByHandle = mContext.getResources().getBoolean(
@@ -3440,11 +3497,15 @@
     }
 
     // Returns whether the device is capable of 2 simultaneous active voice calls on different subs.
-    private boolean isDsdaCallingPossible() {
+    @VisibleForTesting
+    public boolean isDsdaCallingPossible() {
         try {
             return getTelephonyManager().getMaxNumberOfSimultaneouslyActiveSims() > 1
                     || getTelephonyManager().getPhoneCapability()
                            .getMaxActiveVoiceSubscriptions() > 1;
+        } catch(UnsupportedOperationException uoe) {
+            Log.w(this, "Telephony not supported");
+            return false;
         } catch (Exception e) {
             Log.w(this, "exception in isDsdaCallingPossible(): ", e);
             return false;
@@ -3670,6 +3731,7 @@
         int subscriptionId = mPhoneAccountRegistrar.getSubscriptionIdForPhoneAccount(handle);
         CarrierConfigManager carrierConfigManager =
                 mContext.getSystemService(CarrierConfigManager.class);
+        if (carrierConfigManager == null) return new PersistableBundle();
         PersistableBundle result = carrierConfigManager.getConfigForSubId(subscriptionId);
         return result == null ? new PersistableBundle() : result;
     }
@@ -4774,19 +4836,7 @@
      * @return {@code true} if the app has ongoing calls, or {@code false} otherwise.
      */
     public boolean isInSelfManagedCall(String packageName, UserHandle userHandle) {
-        return isInSelfManagedCallCrossUsers(packageName, userHandle, false);
-    }
-
-    /**
-     * Determines if there are any ongoing self-managed calls for the given package/user (unless
-     * hasCrossUsers has been enabled).
-     * @param packageName The package name to check.
-     * @param userHandle The {@link UserHandle} to check.
-     * @param hasCrossUserAccess indicates if calls across all users should be returned.
-     * @return {@code true} if the app has ongoing calls, or {@code false} otherwise.
-     */
-    public boolean isInSelfManagedCallCrossUsers(
-            String packageName, UserHandle userHandle, boolean hasCrossUserAccess) {
+        boolean hasCrossUserAccess = userHandle.equals(UserHandle.ALL);
         return mSelfManagedCallsBeingSetup.stream().anyMatch(c -> c.isSelfManaged()
                 && c.getTargetPhoneAccount().getComponentName().getPackageName().equals(packageName)
                 && (!hasCrossUserAccess
@@ -5536,10 +5586,21 @@
         mCurrentUserHandle = userHandle;
         mMissedCallNotifier.setCurrentUserHandle(userHandle);
         mRoleManagerAdapter.setCurrentUserHandle(userHandle);
-        final UserManager userManager = UserManager.get(mContext);
-        List<UserInfo> profiles = userManager.getEnabledProfiles(userHandle.getIdentifier());
-        for (UserInfo profile : profiles) {
-            reloadMissedCallsOfUser(profile.getUserHandle());
+        final UserManager userManager = mFeatureFlags.telecomResolveHiddenDependencies()
+                ? mContext.createContextAsUser(userHandle, 0).getSystemService(
+                        UserManager.class)
+                : mContext.getSystemService(UserManager.class);
+        List<UserHandle> profiles = userManager.getUserProfiles();
+        List<UserInfo> userInfoProfiles = userManager.getEnabledProfiles(
+                userHandle.getIdentifier());
+        if (mFeatureFlags.telecomResolveHiddenDependencies()) {
+            for (UserHandle profileUser : profiles) {
+                reloadMissedCallsOfUser(profileUser);
+            }
+        } else {
+            for (UserInfo profile : userInfoProfiles) {
+                reloadMissedCallsOfUser(profile.getUserHandle());
+            }
         }
     }
 
@@ -5548,7 +5609,7 @@
      * switched, we reload missed calls of profile that are just started here.
      */
     void onUserStarting(UserHandle userHandle) {
-        if (UserUtil.isProfile(mContext, userHandle)) {
+        if (UserUtil.isProfile(mContext, userHandle, mFeatureFlags)) {
             reloadMissedCallsOfUser(userHandle);
         }
     }
@@ -5657,8 +5718,10 @@
         UserManager userManager = mContext.getSystemService(UserManager.class);
         KeyguardManager keyguardManager = mContext.getSystemService(KeyguardManager.class);
 
-        boolean isUserRestricted = userManager != null
-                && userManager.hasUserRestriction(UserManager.DISALLOW_SMS, callingUser);
+        boolean hasUserRestriction = mFeatureFlags.telecomResolveHiddenDependencies()
+                ? userManager.hasUserRestrictionForUser(UserManager.DISALLOW_SMS, callingUser)
+                : userManager.hasUserRestriction(UserManager.DISALLOW_SMS, callingUser);
+        boolean isUserRestricted = userManager != null && hasUserRestriction;
         boolean isLockscreenRestricted = keyguardManager != null
                 && keyguardManager.isDeviceLocked();
         Log.d(this, "isReplyWithSmsAllowed: isUserRestricted: %s, isLockscreenRestricted: %s",
diff --git a/src/com/android/server/telecom/ConnectionServiceWrapper.java b/src/com/android/server/telecom/ConnectionServiceWrapper.java
index 4011207..f6f4889 100644
--- a/src/com/android/server/telecom/ConnectionServiceWrapper.java
+++ b/src/com/android/server/telecom/ConnectionServiceWrapper.java
@@ -33,7 +33,6 @@
 import android.os.CancellationSignal;
 import android.os.IBinder;
 import android.os.ParcelFileDescriptor;
-import android.os.Process;
 import android.os.RemoteException;
 import android.os.ResultReceiver;
 import android.os.UserHandle;
@@ -66,7 +65,6 @@
 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;
@@ -90,7 +88,7 @@
  */
 @VisibleForTesting
 public class ConnectionServiceWrapper extends ServiceBinder implements
-        ConnectionServiceFocusManager.ConnectionServiceFocus {
+        ConnectionServiceFocusManager.ConnectionServiceFocus, CallSourceService {
 
     private static final String TELECOM_ABBREVIATION = "cast";
     private CompletableFuture<Pair<Integer, Location>> mQueryLocationFuture = null;
@@ -1409,20 +1407,23 @@
         }
     }
 
-    private CellIdentity getLastKnownCellIdentity() {
+    @VisibleForTesting
+    public CellIdentity getLastKnownCellIdentity() {
         TelephonyManager telephonyManager = mContext.getSystemService(TelephonyManager.class);
         if (telephonyManager != null) {
-            CellIdentity lastKnownCellIdentity = telephonyManager.getLastKnownCellIdentity();
             try {
+                CellIdentity lastKnownCellIdentity = telephonyManager.getLastKnownCellIdentity();
                 mAppOpsManager.noteOp(AppOpsManager.OP_FINE_LOCATION,
                         mContext.getPackageManager().getPackageUid(
                                 getComponentName().getPackageName(), 0),
                         getComponentName().getPackageName());
+                return lastKnownCellIdentity;
+            } catch (UnsupportedOperationException ignored) {
+                Log.w(this, "getLastKnownCellIdentity - no telephony on this device");
             } catch (PackageManager.NameNotFoundException nameNotFoundException) {
                 Log.e(this, nameNotFoundException, "could not find the package -- %s",
                         getComponentName().getPackageName());
             }
-            return lastKnownCellIdentity;
         }
         return null;
     }
@@ -1953,6 +1954,7 @@
 
     /** @see IConnectionService#onCallEndpointChanged(String, CallEndpoint, Session.Info) */
     @VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE)
+    @Override
     public void onCallEndpointChanged(Call activeCall, CallEndpoint callEndpoint) {
         final String callId = mCallIdMapper.getCallId(activeCall);
         if (callId != null && isServiceValid("onCallEndpointChanged")) {
@@ -1968,6 +1970,7 @@
 
     /** @see IConnectionService#onAvailableCallEndpointsChanged(String, List, Session.Info) */
     @VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE)
+    @Override
     public void onAvailableCallEndpointsChanged(Call activeCall,
             Set<CallEndpoint> availableCallEndpoints) {
         final String callId = mCallIdMapper.getCallId(activeCall);
@@ -1986,6 +1989,7 @@
 
     /** @see IConnectionService#onMuteStateChanged(String, boolean, Session.Info) */
     @VisibleForTesting(visibility = VisibleForTesting.Visibility.PACKAGE)
+    @Override
     public void onMuteStateChanged(Call activeCall, boolean isMuted) {
         final String callId = mCallIdMapper.getCallId(activeCall);
         if (callId != null && isServiceValid("onMuteStateChanged")) {
@@ -2549,9 +2553,11 @@
             }
         }
 
-        // Bail early if the caller isn't the sim connection mgr.
-        if (!isCallerConnectionManager) {
-            Log.d(this, "queryRemoteConnectionServices: none; not sim call mgr.");
+        Log.i(this, "queryRemoteConnectionServices, simServices = %s", simServices);
+        // Bail early if the caller isn't the sim connection mgr or no sim connection service
+        // other than caller available.
+        if (!isCallerConnectionManager || simServices.isEmpty()) {
+            Log.d(this, "queryRemoteConnectionServices: not sim call mgr or no simservices.");
             noRemoteServices(callback);
             return;
         }
@@ -2559,8 +2565,6 @@
         final List<ComponentName> simServiceComponentNames = new ArrayList<>();
         final List<IBinder> simServiceBinders = new ArrayList<>();
 
-        Log.i(this, "queryRemoteConnectionServices, simServices = %s", simServices);
-
         for (ConnectionServiceWrapper simService : simServices) {
             final ConnectionServiceWrapper currentSimService = simService;
 
diff --git a/src/com/android/server/telecom/CreateConnectionProcessor.java b/src/com/android/server/telecom/CreateConnectionProcessor.java
index 7164819..a2c742d 100644
--- a/src/com/android/server/telecom/CreateConnectionProcessor.java
+++ b/src/com/android/server/telecom/CreateConnectionProcessor.java
@@ -103,22 +103,32 @@
         int getSlotIndex(int subId);
     }
 
-    private ITelephonyManagerAdapter mTelephonyAdapter = new ITelephonyManagerAdapter() {
+    public static class ITelephonyManagerAdapterImpl implements ITelephonyManagerAdapter {
         @Override
         public int getSubIdForPhoneAccount(Context context, PhoneAccount account) {
             TelephonyManager manager = context.getSystemService(TelephonyManager.class);
             if (manager == null) {
                 return SubscriptionManager.INVALID_SUBSCRIPTION_ID;
             }
-            return manager.getSubscriptionId(account.getAccountHandle());
+            try {
+                return manager.getSubscriptionId(account.getAccountHandle());
+            } catch (UnsupportedOperationException uoe) {
+                return SubscriptionManager.INVALID_SUBSCRIPTION_ID;
+            }
         }
 
         @Override
         public int getSlotIndex(int subId) {
-            return SubscriptionManager.getSlotIndex(subId);
+            try {
+                return SubscriptionManager.getSlotIndex(subId);
+            } catch (UnsupportedOperationException uoe) {
+                return SubscriptionManager.INVALID_SUBSCRIPTION_ID;
+            }
         }
     };
 
+    private ITelephonyManagerAdapter mTelephonyAdapter = new ITelephonyManagerAdapterImpl();
+
     private final Call mCall;
     private final ConnectionServiceRepository mRepository;
     private List<CallAttemptRecord> mAttemptRecords;
diff --git a/src/com/android/server/telecom/InCallController.java b/src/com/android/server/telecom/InCallController.java
index 0ec3209..e625bbe 100644
--- a/src/com/android/server/telecom/InCallController.java
+++ b/src/com/android/server/telecom/InCallController.java
@@ -361,7 +361,8 @@
             Log.i(this, "Attempting to bind to InCall %s, with %s", mInCallServiceInfo, intent);
             mIsConnected = true;
             mInCallServiceInfo.setBindingStartTime(mClockProxy.elapsedRealtime());
-            boolean isManagedProfile = UserUtil.isManagedProfile(mContext, userFromCall);
+            boolean isManagedProfile = UserUtil.isManagedProfile(mContext,
+                    userFromCall, mFeatureFlags);
             // Note that UserHandle.CURRENT fails to capture the work profile, so we need to handle
             // it separately to ensure that the ICS is bound to the appropriate user. If ECBM is
             // active, we know that a work sim was previously used to place a MO emergency call. We
@@ -2427,7 +2428,9 @@
         }
 
         String bluetoothPackage = mDefaultDialerCache.getBTInCallServicePackage();
-        if (serviceInfo.packageName != null && serviceInfo.packageName.equals(bluetoothPackage)
+        if (mFeatureFlags.separatelyBindToBtIncallService()
+                && serviceInfo.packageName != null
+                && serviceInfo.packageName.equals(bluetoothPackage)
                 && (hasControlInCallPermission || hasAppOpsPermittedManageOngoingCalls)) {
             return IN_CALL_SERVICE_TYPE_BLUETOOTH;
         }
@@ -3019,19 +3022,38 @@
         mIsCallUsingMicrophone = mIsTrackingManagedAliveCall && !isMuted
                 && !isCarrierPrivilegedUsingMicDuringVoipCall();
         if (wasUsingMicrophone != mIsCallUsingMicrophone) {
+            int opPackageUid = getOpPackageUid();
             if (mIsCallUsingMicrophone) {
                 // Note, not checking return value, as this op call is merely for tracing use
-                mAppOpsManager.startOp(AppOpsManager.OP_PHONE_CALL_MICROPHONE, myUid(),
+                mAppOpsManager.startOp(AppOpsManager.OP_PHONE_CALL_MICROPHONE, opPackageUid,
                         mContext.getOpPackageName(), false, null, null);
                 mSensorPrivacyManager.showSensorUseDialog(SensorPrivacyManager.Sensors.MICROPHONE);
             } else {
-                mAppOpsManager.finishOp(AppOpsManager.OP_PHONE_CALL_MICROPHONE, myUid(),
+                mAppOpsManager.finishOp(AppOpsManager.OP_PHONE_CALL_MICROPHONE, opPackageUid,
                         mContext.getOpPackageName(), null);
             }
         }
     }
 
     /**
+     * Returns the uid of the package in the current user to be used for app ops attribution.
+     */
+    private int getOpPackageUid() {
+        UserHandle user = mCallsManager.getCurrentUserHandle();
+
+        try {
+            PackageManager pkgManager = mContext.getPackageManager();
+            return pkgManager.getPackageUidAsUser(mContext.getOpPackageName(),
+                    user.getIdentifier());
+        } catch (PackageManager.NameNotFoundException e) {
+            Log.e(this, e, "getPackageForAssociatedUser: could not find package %s"
+                    + " for user %s", mContext.getOpPackageName(), user);
+            // fallback to current process id - this should not happen
+            return myUid();
+        }
+    }
+
+    /**
      * @return {@code true} if InCallController is tracking a managed call (i.e. not self managed
      * and not external) that is active.
      */
@@ -3111,7 +3133,13 @@
             return mCallsManager.getCurrentUserHandle();
         } else {
             UserHandle userFromCall = call.getAssociatedUser();
-            UserManager userManager = mContext.getSystemService(UserManager.class);
+            UserManager userManager = mFeatureFlags.telecomResolveHiddenDependencies()
+                    ? mContext.createContextAsUser(mCallsManager.getCurrentUserHandle(), 0)
+                            .getSystemService(UserManager.class)
+                    : mContext.getSystemService(UserManager.class);
+            boolean isCurrentUserAdmin = mFeatureFlags.telecomResolveHiddenDependencies()
+                    ? userManager.isAdminUser()
+                    : userManager.isUserAdmin(mCallsManager.getCurrentUserHandle().getIdentifier());
             // 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
@@ -3121,8 +3149,7 @@
                     && (userManager.isQuietModeEnabled(userFromCall)
                     // We should also account for secondary/guest users where the profile may not
                     // necessarily be paused.
-                    || !userManager.isUserAdmin(mCallsManager.getCurrentUserHandle()
-                    .getIdentifier()))) {
+                    || !isCurrentUserAdmin)) {
                 return mCallsManager.getCurrentUserHandle();
             }
             return userFromCall;
diff --git a/src/com/android/server/telecom/NewOutgoingCallIntentBroadcaster.java b/src/com/android/server/telecom/NewOutgoingCallIntentBroadcaster.java
index 6070baa..c24ac97 100644
--- a/src/com/android/server/telecom/NewOutgoingCallIntentBroadcaster.java
+++ b/src/com/android/server/telecom/NewOutgoingCallIntentBroadcaster.java
@@ -623,6 +623,9 @@
         try {
             return mContext.getSystemService(TelephonyManager.class).isEmergencyNumber(
                     number);
+        } catch (UnsupportedOperationException uoe) {
+            Log.w(this, "isEmergencyNumber: Telephony not supported");
+            return false;
         } catch (Exception e) {
             Log.e(this, e, "isEmergencyNumber: Telephony threw an exception.");
             return false;
diff --git a/src/com/android/server/telecom/PendingAudioRoute.java b/src/com/android/server/telecom/PendingAudioRoute.java
index 8de62ed..6ba09a5 100644
--- a/src/com/android/server/telecom/PendingAudioRoute.java
+++ b/src/com/android/server/telecom/PendingAudioRoute.java
@@ -17,8 +17,13 @@
 package com.android.server.telecom;
 
 import static com.android.server.telecom.CallAudioRouteAdapter.PENDING_ROUTE_FAILED;
+import static com.android.server.telecom.CallAudioRouteAdapter.SWITCH_BASELINE_ROUTE;
 
+import android.bluetooth.BluetoothDevice;
 import android.media.AudioManager;
+import android.telecom.Log;
+
+import com.android.server.telecom.bluetooth.BluetoothRouteManager;
 
 import java.util.ArrayList;
 
@@ -32,6 +37,7 @@
 public class PendingAudioRoute {
     private CallAudioRouteController mCallAudioRouteController;
     private AudioManager mAudioManager;
+    private BluetoothRouteManager mBluetoothRouteManager;
     /**
      * The {@link AudioRoute} that this pending audio switching started with
      */
@@ -43,15 +49,23 @@
     private AudioRoute mDestRoute;
     private ArrayList<Integer> mPendingMessages;
     private boolean mActive;
-    PendingAudioRoute(CallAudioRouteController controller, AudioManager audioManager) {
+    /**
+     * The device that has been set for communication by Telecom
+     */
+    private @AudioRoute.AudioRouteType int mCommunicationDeviceType = AudioRoute.TYPE_INVALID;
+
+    PendingAudioRoute(CallAudioRouteController controller, AudioManager audioManager,
+            BluetoothRouteManager bluetoothRouteManager) {
         mCallAudioRouteController = controller;
         mAudioManager = audioManager;
+        mBluetoothRouteManager = bluetoothRouteManager;
         mPendingMessages = new ArrayList<>();
         mActive = false;
+        mCommunicationDeviceType = AudioRoute.TYPE_INVALID;
     }
 
     void setOrigRoute(boolean active, AudioRoute origRoute) {
-        origRoute.onOrigRouteAsPendingRoute(active, this, mAudioManager);
+        origRoute.onOrigRouteAsPendingRoute(active, this, mAudioManager, mBluetoothRouteManager);
         mOrigRoute = origRoute;
     }
 
@@ -59,8 +73,9 @@
         return mOrigRoute;
     }
 
-    void setDestRoute(boolean active, AudioRoute destRoute) {
-        destRoute.onDestRouteAsPendingRoute(active, this, mAudioManager);
+    void setDestRoute(boolean active, AudioRoute destRoute, BluetoothDevice device) {
+        destRoute.onDestRouteAsPendingRoute(active, this, device,
+                mAudioManager, mBluetoothRouteManager);
         mActive = active;
         mDestRoute = destRoute;
     }
@@ -73,12 +88,13 @@
         mPendingMessages.add(message);
     }
 
-    public void onMessageReceived(int message) {
+    public void onMessageReceived(int message, String btAddressToExclude) {
+        Log.i(this, "onMessageReceived: message - %s", message);
         if (message == PENDING_ROUTE_FAILED) {
             // Fallback to base route
-            mDestRoute = mCallAudioRouteController.getBaseRoute(true);
             mCallAudioRouteController.sendMessageWithSessionInfo(
-                    CallAudioRouteAdapter.EXIT_PENDING_ROUTE);
+                    SWITCH_BASELINE_ROUTE, 0, btAddressToExclude);
+            return;
         }
 
         // Removes the first occurrence of the specified message from this list, if it is present.
@@ -90,10 +106,27 @@
         if (mPendingMessages.isEmpty()) {
             mCallAudioRouteController.sendMessageWithSessionInfo(
                     CallAudioRouteAdapter.EXIT_PENDING_ROUTE);
+        } else {
+            for(Integer i: mPendingMessages) {
+                Log.d(this, "evaluatePendingState: pending Messages - %d", i);
+            }
         }
     }
 
+    public void clearPendingMessages() {
+        mPendingMessages.clear();
+    }
+
     public boolean isActive() {
         return mActive;
     }
+
+    public @AudioRoute.AudioRouteType int getCommunicationDeviceType() {
+        return mCommunicationDeviceType;
+    }
+
+    public void setCommunicationDeviceType(
+            @AudioRoute.AudioRouteType int communicationDeviceType) {
+        mCommunicationDeviceType = communicationDeviceType;
+    }
 }
diff --git a/src/com/android/server/telecom/PhoneAccountRegistrar.java b/src/com/android/server/telecom/PhoneAccountRegistrar.java
index fc90edd..9256387 100644
--- a/src/com/android/server/telecom/PhoneAccountRegistrar.java
+++ b/src/com/android/server/telecom/PhoneAccountRegistrar.java
@@ -185,30 +185,35 @@
     private final PhoneAccountRegistrarWriteLock mWriteLock =
             new PhoneAccountRegistrarWriteLock() {};
     private final FeatureFlags mTelephonyFeatureFlags;
+    private final com.android.server.telecom.flags.FeatureFlags mTelecomFeatureFlags;
 
     @VisibleForTesting
     public PhoneAccountRegistrar(Context context, TelecomSystem.SyncRoot lock,
             DefaultDialerCache defaultDialerCache, AppLabelProxy appLabelProxy,
-            FeatureFlags telephonyFeatureFlags) {
-        this(context, lock, FILE_NAME, defaultDialerCache, appLabelProxy, telephonyFeatureFlags);
+            FeatureFlags telephonyFeatureFlags,
+            com.android.server.telecom.flags.FeatureFlags telecomFeatureFlags) {
+        this(context, lock, FILE_NAME, defaultDialerCache, appLabelProxy,
+                telephonyFeatureFlags, telecomFeatureFlags);
     }
 
     @VisibleForTesting
     public PhoneAccountRegistrar(Context context, TelecomSystem.SyncRoot lock, String fileName,
             DefaultDialerCache defaultDialerCache, AppLabelProxy appLabelProxy,
-            FeatureFlags telephonyFeatureFlags) {
+            FeatureFlags telephonyFeatureFlags,
+            com.android.server.telecom.flags.FeatureFlags telecomFeatureFlags) {
 
         mAtomicFile = new AtomicFile(new File(context.getFilesDir(), fileName));
 
         mState = new State();
         mContext = context;
         mLock = lock;
-        mUserManager = UserManager.get(context);
+        mUserManager = context.getSystemService(UserManager.class);
         mDefaultDialerCache = defaultDialerCache;
         mSubscriptionManager = SubscriptionManager.from(mContext);
         mTelephonyManager = (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE);
         mAppLabelProxy = appLabelProxy;
         mCurrentUserHandle = Process.myUserHandle();
+        mTelecomFeatureFlags = telecomFeatureFlags;
 
         if (telephonyFeatureFlags != null) {
             mTelephonyFeatureFlags = telephonyFeatureFlags;
@@ -237,7 +242,11 @@
         PhoneAccount account = getPhoneAccountUnchecked(accountHandle);
 
         if (account != null && account.hasCapabilities(PhoneAccount.CAPABILITY_SIM_SUBSCRIPTION)) {
-            return mTelephonyManager.getSubscriptionId(accountHandle);
+            try {
+                return mTelephonyManager.getSubscriptionId(accountHandle);
+            } catch (UnsupportedOperationException ignored) {
+                // Ignore; fall back to invalid below.
+            }
         }
         return SubscriptionManager.INVALID_SUBSCRIPTION_ID;
     }
@@ -420,18 +429,23 @@
                 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");
+        try {
+            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");
+            }
+        } catch (UnsupportedOperationException uoe) {
+            Log.w(this, "setUserSelectedOutgoingPhoneAccount: no telephony");
         }
     }
 
@@ -460,8 +474,13 @@
     }
 
     boolean isUserSelectedSmsPhoneAccount(PhoneAccountHandle accountHandle) {
-        return getSubscriptionIdForPhoneAccount(accountHandle) ==
-                SubscriptionManager.getDefaultSmsSubscriptionId();
+        try {
+            return getSubscriptionIdForPhoneAccount(accountHandle) ==
+                    SubscriptionManager.getDefaultSmsSubscriptionId();
+        } catch (UnsupportedOperationException uoe) {
+            Log.w(this, "isUserSelectedSmsPhoneAccount: no telephony");
+            return false;
+        }
     }
 
     public ComponentName getSystemSimCallManagerComponent() {
@@ -470,12 +489,18 @@
 
     public ComponentName getSystemSimCallManagerComponent(int subId) {
         String defaultSimCallManager = null;
-        CarrierConfigManager configManager = (CarrierConfigManager) mContext.getSystemService(
-                Context.CARRIER_CONFIG_SERVICE);
-        PersistableBundle configBundle = configManager.getConfigForSubId(subId);
-        if (configBundle != null) {
-            defaultSimCallManager = configBundle.getString(
-                    CarrierConfigManager.KEY_DEFAULT_SIM_CALL_MANAGER_STRING);
+        try {
+            CarrierConfigManager configManager = (CarrierConfigManager) mContext.getSystemService(
+                    Context.CARRIER_CONFIG_SERVICE);
+            if (configManager == null) return null;
+            PersistableBundle configBundle = configManager.getConfigForSubId(subId);
+            if (configBundle != null) {
+                defaultSimCallManager = configBundle.getString(
+                        CarrierConfigManager.KEY_DEFAULT_SIM_CALL_MANAGER_STRING);
+            }
+        } catch (UnsupportedOperationException ignored) {
+            Log.w(this, "getSystemSimCallManagerComponent: no telephony");
+            // Fall through to empty below.
         }
         return TextUtils.isEmpty(defaultSimCallManager)
                 ?  null : ComponentName.unflattenFromString(defaultSimCallManager);
@@ -757,8 +782,11 @@
         }
 
         if (acrossProfiles) {
-            return UserManager.get(mContext).isSameProfileGroup(userHandle.getIdentifier(),
-                    phoneAccountUserHandle.getIdentifier());
+            UserManager um = mContext.getSystemService(UserManager.class);
+            return mTelecomFeatureFlags.telecomResolveHiddenDependencies()
+                    ? um.isSameProfileGroup(userHandle, phoneAccountUserHandle)
+                    : um.isSameProfileGroup(userHandle.getIdentifier(),
+                            phoneAccountUserHandle.getIdentifier());
         } else {
             return phoneAccountUserHandle.equals(userHandle);
         }
@@ -1456,16 +1484,22 @@
                 "Notifying telephony of voice service override change for %d SIMs, hasService = %b",
                 simHandlesToNotify.size(),
                 hasService);
-        for (PhoneAccountHandle simHandle : simHandlesToNotify) {
-            // This may be null if there are no active SIMs but the device is still camped for
-            // emergency calls and registered a SIM_SUBSCRIPTION for that purpose.
-            TelephonyManager simTm = mTelephonyManager.createForPhoneAccountHandle(simHandle);
-            if (simTm == null) {
-                Log.i(this, "maybeNotifyTelephonyForVoiceServiceState: "
-                        + "simTm is null.");
-                continue;
+        try {
+            for (PhoneAccountHandle simHandle : simHandlesToNotify) {
+                // This may be null if there are no active SIMs but the device is still camped for
+                // emergency calls and registered a SIM_SUBSCRIPTION for that purpose.
+                TelephonyManager simTm = mTelephonyManager.createForPhoneAccountHandle(simHandle);
+                if (simTm == null) {
+                    Log.i(this, "maybeNotifyTelephonyForVoiceServiceState: "
+                            + "simTm is null.");
+                    continue;
+                }
+                simTm.setVoiceServiceStateOverride(hasService);
             }
-            simTm.setVoiceServiceStateOverride(hasService);
+        } catch (UnsupportedOperationException ignored) {
+            // No telephony, so we can't override the sim service state.
+            // Realistically we shouldn't get here because there should be no sim subs in this case.
+            Log.w(this, "maybeNotifyTelephonyForVoiceServiceState: no telephony");
         }
     }
 
@@ -1832,7 +1866,12 @@
             } else {
                 pw.println(defaultOutgoing);
             }
-            pw.println("defaultVoiceSubId: " + SubscriptionManager.getDefaultVoiceSubscriptionId());
+            // SubscriptionManager will throw if FEATURE_TELEPHONY_SUBSCRIPTION is not present.
+            if (mContext.getPackageManager().hasSystemFeature(
+                    PackageManager.FEATURE_TELEPHONY_SUBSCRIPTION)) {
+                pw.println("defaultVoiceSubId: "
+                        + SubscriptionManager.getDefaultVoiceSubscriptionId());
+            }
             pw.println("simCallManager: " + getSimCallManager(mCurrentUserHandle));
             pw.println("phoneAccounts:");
             pw.increaseIndent();
@@ -1942,7 +1981,7 @@
         try {
             XmlPullParser parser = Xml.resolvePullParser(is);
             parser.nextTag();
-            mState = readFromXml(parser, mContext, mTelephonyFeatureFlags);
+            mState = readFromXml(parser, mContext, mTelephonyFeatureFlags, mTelecomFeatureFlags);
             migratePhoneAccountHandle(mState);
             versionChanged = mState.versionNumber < EXPECTED_STATE_VERSION;
 
@@ -1983,8 +2022,11 @@
     }
 
     private static State readFromXml(XmlPullParser parser, Context context,
-            FeatureFlags telephonyFeatureFlags) throws IOException, XmlPullParserException {
-        State s = sStateXml.readFromXml(parser, 0, context, telephonyFeatureFlags);
+            FeatureFlags telephonyFeatureFlags,
+            com.android.server.telecom.flags.FeatureFlags telecomFeatureFlags)
+            throws IOException, XmlPullParserException {
+        State s = sStateXml.readFromXml(parser, 0, context,
+                telephonyFeatureFlags, telecomFeatureFlags);
         return s != null ? s : new State();
     }
 
@@ -2061,7 +2103,9 @@
          * 'parser' if it does not recognize the data it sees.
          */
         public abstract T readFromXml(XmlPullParser parser, int version, Context context,
-                FeatureFlags telephonyFeatureFlags) throws IOException, XmlPullParserException;
+                FeatureFlags telephonyFeatureFlags,
+                com.android.server.telecom.flags.FeatureFlags featureFlags)
+                throws IOException, XmlPullParserException;
 
         protected void writeTextIfNonNull(String tagName, Object value, XmlSerializer serializer)
                 throws IOException {
@@ -2190,7 +2234,8 @@
         }
 
         protected Set<PhoneAccountHandle> readPhoneAccountHandleSet(XmlPullParser parser,
-                int version, Context context, FeatureFlags telephonyFeatureFlags)
+                int version, Context context, FeatureFlags telephonyFeatureFlags,
+                com.android.server.telecom.flags.FeatureFlags telecomFeatureFlags)
                 throws IOException, XmlPullParserException {
             int length = Integer.parseInt(parser.getAttributeValue(null, ATTRIBUTE_LENGTH));
             Set<PhoneAccountHandle> handles = new HashSet<>(length);
@@ -2199,7 +2244,7 @@
             int outerDepth = parser.getDepth();
             while (XmlUtils.nextElementWithin(parser, outerDepth)) {
                 handles.add(sPhoneAccountHandleXml.readFromXml(parser, version, context,
-                        telephonyFeatureFlags));
+                        telephonyFeatureFlags, telecomFeatureFlags));
             }
             return handles;
         }
@@ -2338,7 +2383,9 @@
 
         @Override
         public State readFromXml(XmlPullParser parser, int version, Context context,
-                FeatureFlags telephonyFeatureFlags) throws IOException, XmlPullParserException {
+                FeatureFlags telephonyFeatureFlags,
+                com.android.server.telecom.flags.FeatureFlags telecomFeatureFlags)
+                throws IOException, XmlPullParserException {
             if (parser.getName().equals(CLASS_STATE)) {
                 State s = new State();
 
@@ -2355,16 +2402,23 @@
                             parser.nextTag();
                             PhoneAccountHandle phoneAccountHandle = sPhoneAccountHandleXml
                                     .readFromXml(parser, s.versionNumber, context,
-                                            telephonyFeatureFlags);
-                            UserManager userManager = UserManager.get(context);
-                            UserInfo primaryUser = userManager.getPrimaryUser();
+                                            telephonyFeatureFlags, telecomFeatureFlags);
+                            UserManager userManager = context.getSystemService(UserManager.class);
+                            // UserManager#getMainUser requires either the MANAGE_USERS,
+                            // CREATE_USERS, or QUERY_USERS permission.
+                            UserHandle primaryUser = userManager.getMainUser();
+                            UserInfo primaryUserInfo = userManager.getPrimaryUser();
+                            if (!telecomFeatureFlags.telecomResolveHiddenDependencies()) {
+                                primaryUser = primaryUserInfo != null
+                                        ? primaryUserInfo.getUserHandle()
+                                        : null;
+                            }
                             if (primaryUser != null) {
-                                UserHandle userHandle = primaryUser.getUserHandle();
                                 DefaultPhoneAccountHandle defaultPhoneAccountHandle
-                                        = new DefaultPhoneAccountHandle(userHandle,
+                                        = new DefaultPhoneAccountHandle(primaryUser,
                                         phoneAccountHandle, "" /* groupId */);
                                 s.defaultOutgoingAccountHandles
-                                        .put(userHandle, defaultPhoneAccountHandle);
+                                        .put(primaryUser, defaultPhoneAccountHandle);
                             }
                         } else {
                             int defaultAccountHandlesDepth = parser.getDepth();
@@ -2372,7 +2426,7 @@
                                 DefaultPhoneAccountHandle accountHandle
                                         = sDefaultPhoneAccountHandleXml
                                         .readFromXml(parser, s.versionNumber, context,
-                                                telephonyFeatureFlags);
+                                                telephonyFeatureFlags, telecomFeatureFlags);
                                 if (accountHandle != null && s.accounts != null) {
                                     s.defaultOutgoingAccountHandles
                                             .put(accountHandle.userHandle, accountHandle);
@@ -2383,7 +2437,8 @@
                         int accountsDepth = parser.getDepth();
                         while (XmlUtils.nextElementWithin(parser, accountsDepth)) {
                             PhoneAccount account = sPhoneAccountXml.readFromXml(parser,
-                                    s.versionNumber, context, telephonyFeatureFlags);
+                                    s.versionNumber, context, telephonyFeatureFlags,
+                                    telecomFeatureFlags);
 
                             if (account != null && s.accounts != null) {
                                 s.accounts.add(account);
@@ -2410,7 +2465,7 @@
                 public void writeToXml(DefaultPhoneAccountHandle o, XmlSerializer serializer,
                         Context context, FeatureFlags telephonyFeatureFlags) throws IOException {
                     if (o != null) {
-                        final UserManager userManager = UserManager.get(context);
+                        final UserManager userManager = context.getSystemService(UserManager.class);
                         final long serialNumber = userManager.getSerialNumberForUser(o.userHandle);
                         if (serialNumber != -1) {
                             serializer.startTag(null, CLASS_DEFAULT_OUTGOING_PHONE_ACCOUNT_HANDLE);
@@ -2427,7 +2482,8 @@
 
                 @Override
                 public DefaultPhoneAccountHandle readFromXml(XmlPullParser parser, int version,
-                        Context context, FeatureFlags telephonyFeatureFlags)
+                        Context context, FeatureFlags telephonyFeatureFlags,
+                        com.android.server.telecom.flags.FeatureFlags telecomFeatureFlags)
                         throws IOException, XmlPullParserException {
                     if (parser.getName().equals(CLASS_DEFAULT_OUTGOING_PHONE_ACCOUNT_HANDLE)) {
                         int outerDepth = parser.getDepth();
@@ -2438,7 +2494,7 @@
                             if (parser.getName().equals(ACCOUNT_HANDLE)) {
                                 parser.nextTag();
                                 accountHandle = sPhoneAccountHandleXml.readFromXml(parser, version,
-                                        context, telephonyFeatureFlags);
+                                        context, telephonyFeatureFlags, telecomFeatureFlags);
                             } else if (parser.getName().equals(USER_SERIAL_NUMBER)) {
                                 parser.next();
                                 userSerialNumberString = parser.getText();
@@ -2452,7 +2508,7 @@
                         if (userSerialNumberString != null) {
                             try {
                                 long serialNumber = Long.parseLong(userSerialNumberString);
-                                userHandle = UserManager.get(context)
+                                userHandle = context.getSystemService(UserManager.class)
                                         .getUserForSerialNumber(serialNumber);
                             } catch (NumberFormatException e) {
                                 Log.e(this, e,
@@ -2530,7 +2586,8 @@
         }
 
         public PhoneAccount readFromXml(XmlPullParser parser, int version, Context context,
-                FeatureFlags telephonyFeatureFlags) throws IOException, XmlPullParserException {
+                FeatureFlags telephonyFeatureFlags,
+                com.android.server.telecom.flags.FeatureFlags telecomFeatureFlags) throws IOException, XmlPullParserException {
             if (parser.getName().equals(CLASS_PHONE_ACCOUNT)) {
                 int outerDepth = parser.getDepth();
                 PhoneAccountHandle accountHandle = null;
@@ -2555,7 +2612,7 @@
                     if (parser.getName().equals(ACCOUNT_HANDLE)) {
                         parser.nextTag();
                         accountHandle = sPhoneAccountHandleXml.readFromXml(parser, version,
-                                context, telephonyFeatureFlags);
+                                context, telephonyFeatureFlags, telecomFeatureFlags);
                     } else if (parser.getName().equals(ADDRESS)) {
                         parser.next();
                         address = Uri.parse(parser.getText());
@@ -2605,7 +2662,7 @@
                         // this info is in the XML for parsing reasons. We only flag setting the
                         // parsed value below based on the flag.
                         simultaneousCallingRestriction = readPhoneAccountHandleSet(parser, version,
-                                context, telephonyFeatureFlags);
+                                context, telephonyFeatureFlags, telecomFeatureFlags);
                     }
                 }
 
@@ -2734,7 +2791,7 @@
                 writeTextIfNonNull(ID, o.getId(), serializer);
 
                 if (o.getUserHandle() != null && context != null) {
-                    UserManager userManager = UserManager.get(context);
+                    UserManager userManager = context.getSystemService(UserManager.class);
                     writeLong(USER_SERIAL_NUMBER,
                             userManager.getSerialNumberForUser(o.getUserHandle()), serializer);
                 }
@@ -2745,14 +2802,16 @@
 
         @Override
         public PhoneAccountHandle readFromXml(XmlPullParser parser, int version, Context context,
-                FeatureFlags telephonyFeatureFlags) throws IOException, XmlPullParserException {
+                FeatureFlags telephonyFeatureFlags,
+                com.android.server.telecom.flags.FeatureFlags telecomFeatureFlags)
+                throws IOException, XmlPullParserException {
             if (parser.getName().equals(CLASS_PHONE_ACCOUNT_HANDLE)) {
                 String componentNameString = null;
                 String idString = null;
                 String userSerialNumberString = null;
                 int outerDepth = parser.getDepth();
 
-                UserManager userManager = UserManager.get(context);
+                UserManager userManager = context.getSystemService(UserManager.class);
 
                 while (XmlUtils.nextElementWithin(parser, outerDepth)) {
                     if (parser.getName().equals(COMPONENT_NAME)) {
diff --git a/src/com/android/server/telecom/PhoneStateBroadcaster.java b/src/com/android/server/telecom/PhoneStateBroadcaster.java
index 490db85..11f5e02 100644
--- a/src/com/android/server/telecom/PhoneStateBroadcaster.java
+++ b/src/com/android/server/telecom/PhoneStateBroadcaster.java
@@ -16,6 +16,7 @@
 
 package com.android.server.telecom;
 
+import android.content.pm.PackageManager;
 import android.telecom.Log;
 import android.telephony.PhoneNumberUtils;
 import android.telephony.SubscriptionInfo;
@@ -24,6 +25,8 @@
 import android.telephony.TelephonyRegistryManager;
 import android.telephony.emergency.EmergencyNumber;
 
+import com.android.internal.annotations.VisibleForTesting;
+
 import java.util.List;
 import java.util.Objects;
 import java.util.Optional;
@@ -32,7 +35,7 @@
  * Send a {@link TelephonyManager#ACTION_PHONE_STATE_CHANGED} broadcast when the call state
  * changes.
  */
-final class PhoneStateBroadcaster extends CallsManagerListenerBase {
+public final class PhoneStateBroadcaster extends CallsManagerListenerBase {
 
     private final CallsManager mCallsManager;
     private final TelephonyRegistryManager mRegistry;
@@ -136,25 +139,34 @@
                     .flatMap(List::stream)
                     .filter(numberObj -> Objects.equals(numberObj.getNumber(), strippedNumber))
                     .findFirst();
+        } catch (UnsupportedOperationException ignored) {
+            emergencyNumber = Optional.empty();
         } catch (IllegalStateException ie) {
             emergencyNumber = Optional.empty();
         } catch (RuntimeException r) {
             emergencyNumber = Optional.empty();
         }
 
-        int subscriptionId = tm.getSubscriptionId(call.getTargetPhoneAccount());
-        SubscriptionManager subscriptionManager =
-                mCallsManager.getContext().getSystemService(SubscriptionManager.class);
-        int simSlotIndex = SubscriptionManager.DEFAULT_PHONE_INDEX;
-        if (subscriptionManager != null) {
-            SubscriptionInfo subInfo =
-                    subscriptionManager.getActiveSubscriptionInfo(subscriptionId);
-            if (subInfo != null) {
-                simSlotIndex = subInfo.getSimSlotIndex();
-            }
-        }
-
         if (emergencyNumber.isPresent()) {
+            int subscriptionId;
+            int simSlotIndex;
+            try {
+                subscriptionId = tm.getSubscriptionId(call.getTargetPhoneAccount());
+                SubscriptionManager subscriptionManager =
+                        mCallsManager.getContext().getSystemService(SubscriptionManager.class);
+                simSlotIndex = SubscriptionManager.DEFAULT_PHONE_INDEX;
+                if (subscriptionManager != null) {
+                    SubscriptionInfo subInfo =
+                            subscriptionManager.getActiveSubscriptionInfo(subscriptionId);
+                    if (subInfo != null) {
+                        simSlotIndex = subInfo.getSimSlotIndex();
+                    }
+                }
+            } catch (UnsupportedOperationException ignored) {
+                subscriptionId = SubscriptionManager.INVALID_SUBSCRIPTION_ID;
+                simSlotIndex = SubscriptionManager.INVALID_SIM_SLOT_INDEX;
+            }
+
             mRegistry.notifyOutgoingEmergencyCall(
                     simSlotIndex, subscriptionId, emergencyNumber.get());
         }
diff --git a/src/com/android/server/telecom/RingtoneFactory.java b/src/com/android/server/telecom/RingtoneFactory.java
index 0e0b99f..16fa0c4 100644
--- a/src/com/android/server/telecom/RingtoneFactory.java
+++ b/src/com/android/server/telecom/RingtoneFactory.java
@@ -33,6 +33,8 @@
 import android.text.TextUtils;
 
 import com.android.internal.annotations.VisibleForTesting;
+import com.android.server.telecom.flags.FeatureFlags;
+
 import android.telecom.CallerInfo;
 import android.util.Pair;
 
@@ -48,10 +50,12 @@
 
     private final Context mContext;
     private final CallsManager mCallsManager;
+    private FeatureFlags mFeatureFlags;
 
-    public RingtoneFactory(CallsManager callsManager, Context context) {
+    public RingtoneFactory(CallsManager callsManager, Context context, FeatureFlags featureFlags) {
         mContext = context;
         mCallsManager = callsManager;
+        mFeatureFlags = featureFlags;
     }
 
     public Pair<Uri, Ringtone> getRingtone(Call incomingCall,
@@ -82,8 +86,12 @@
             // Contact didn't specify ringtone or custom Ringtone creation failed. Get default
             // ringtone for user or profile.
             Context contextToUse = hasDefaultRingtoneForUser(userContext) ? userContext : mContext;
+            UserManager um = contextToUse.getSystemService(UserManager.class);
+            boolean isUserUnlocked = mFeatureFlags.telecomResolveHiddenDependencies()
+                    ? um.isUserUnlocked(contextToUse.getUser())
+                    : um.isUserUnlocked(contextToUse.getUserId());
             Uri defaultRingtoneUri;
-            if (UserManager.get(contextToUse).isUserUnlocked(contextToUse.getUserId())) {
+            if (isUserUnlocked) {
                 defaultRingtoneUri = RingtoneManager.getActualDefaultRingtoneUri(contextToUse,
                         RingtoneManager.TYPE_RINGTONE);
                 if (defaultRingtoneUri == null) {
@@ -138,22 +146,38 @@
     }
 
     private Context getWorkProfileContextForUser(UserHandle userHandle) {
-        // UserManager.getEnabledProfiles returns the enabled profiles along with the user's handle
-        // itself (so we must filter out the user).
-        List<UserInfo> profiles = UserManager.get(mContext).getEnabledProfiles(
-                userHandle.getIdentifier());
-        UserInfo workprofile = null;
+        // UserManager.getUserProfiles returns the enabled profiles along with the context user's
+        // handle itself (so we must filter out the user).
+        Context userContext = mContext.createContextAsUser(userHandle, 0);
+        UserManager um = mFeatureFlags.telecomResolveHiddenDependencies()
+                ? userContext.getSystemService(UserManager.class)
+                : mContext.getSystemService(UserManager.class);
+        List<UserHandle> profiles = um.getUserProfiles();
+        List<UserInfo> userInfoProfiles = um.getEnabledProfiles(userHandle.getIdentifier());
+        UserHandle workProfileUser = null;
         int managedProfileCount = 0;
-        for (UserInfo profile : profiles) {
-            UserHandle profileUserHandle = profile.getUserHandle();
-            if (profileUserHandle != userHandle && profile.isManagedProfile()) {
-                managedProfileCount++;
-                workprofile = profile;
+
+        if (mFeatureFlags.telecomResolveHiddenDependencies()) {
+            for (UserHandle profileUser : profiles) {
+                UserManager userManager = mContext.createContextAsUser(profileUser, 0)
+                        .getSystemService(UserManager.class);
+                if (!userHandle.equals(profileUser) && userManager.isManagedProfile()) {
+                    managedProfileCount++;
+                    workProfileUser = profileUser;
+                }
+            }
+        } else {
+            for(UserInfo profile: userInfoProfiles) {
+                UserHandle profileUserHandle = profile.getUserHandle();
+                if (!profileUserHandle.equals(userHandle) && profile.isManagedProfile()) {
+                    managedProfileCount++;
+                    workProfileUser = profileUserHandle;
+                }
             }
         }
         // There may be many different types of profiles, so only count Managed (Work) Profiles.
         if(managedProfileCount == 1) {
-            return getContextForUserHandle(workprofile.getUserHandle());
+            return getContextForUserHandle(workProfileUser);
         }
         // There are multiple managed profiles for the associated user and we do not have enough
         // info to determine which profile is the work profile. Just use the default.
diff --git a/src/com/android/server/telecom/TelecomServiceImpl.java b/src/com/android/server/telecom/TelecomServiceImpl.java
index f3d91f1..83386ad 100644
--- a/src/com/android/server/telecom/TelecomServiceImpl.java
+++ b/src/com/android/server/telecom/TelecomServiceImpl.java
@@ -53,10 +53,14 @@
 import android.os.Build;
 import android.os.Bundle;
 import android.os.OutcomeReceiver;
+import android.os.ParcelFileDescriptor;
 import android.os.Process;
 import android.os.RemoteException;
+import android.os.ResultReceiver;
+import android.os.ShellCallback;
 import android.os.UserHandle;
 import android.provider.BlockedNumberContract;
+import android.provider.BlockedNumbersManager;
 import android.provider.Settings;
 import android.telecom.CallAttributes;
 import android.telecom.CallException;
@@ -72,12 +76,14 @@
 import android.util.EventLog;
 
 import androidx.annotation.NonNull;
+import androidx.annotation.Nullable;
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.telecom.ICallControl;
 import com.android.internal.telecom.ICallEventCallback;
 import com.android.internal.telecom.ITelecomService;
 import com.android.internal.util.IndentingPrintWriter;
+import com.android.modules.utils.BasicShellCommandHandler;
 import com.android.server.telecom.components.UserCallIntentProcessorFactory;
 import com.android.server.telecom.flags.FeatureFlags;
 import com.android.server.telecom.settings.BlockedNumbersActivity;
@@ -90,8 +96,10 @@
 import java.io.FileDescriptor;
 import java.io.PrintWriter;
 import java.lang.reflect.Method;
+import java.util.Arrays;
 import java.util.HashSet;
 import java.util.List;
+import java.util.Locale;
 import java.util.Objects;
 import java.util.Set;
 import java.util.UUID;
@@ -238,6 +246,7 @@
                                                 callEventCallback, mCallsManager, call);
 
                         call.setTransactionServiceWrapper(serviceWrapper);
+
                         if (mFeatureFlags.transactionalVideoState()) {
                             call.setTransactionalCallSupportsVideoCalling(callAttributes);
                         }
@@ -988,6 +997,9 @@
                         }
                     }
                     return getTelephonyManager(subId).getVoiceMailNumber();
+                } catch (UnsupportedOperationException ignored) {
+                    Log.w(this, "getVoiceMailNumber: no Telephony");
+                    return null;
                 } catch (Exception e) {
                     Log.e(this, e, "getSubscriptionIdForPhoneAccount");
                     throw e;
@@ -1024,6 +1036,9 @@
                                 accountHandle);
                     }
                     return getTelephonyManager(subId).getLine1Number();
+                } catch (UnsupportedOperationException ignored) {
+                    Log.w(this, "getLine1Number: no telephony");
+                    return null;
                 } catch (Exception e) {
                     Log.e(this, e, "getSubscriptionIdForPhoneAccount");
                     throw e;
@@ -1502,8 +1517,13 @@
                         subId = mPhoneAccountRegistrar.getSubscriptionIdForPhoneAccount(
                                 accountHandle);
                     }
-                    retval = getTelephonyManager(subId)
-                            .handlePinMmiForSubscriber(subId, dialString);
+                    try {
+                        retval = getTelephonyManager(subId)
+                                .handlePinMmiForSubscriber(subId, dialString);
+                    } catch (UnsupportedOperationException uoe) {
+                        Log.w(this, "handlePinMmiForPhoneAccount: no telephony");
+                        retval = false;
+                    }
                 } finally {
                     Binder.restoreCallingIdentity(token);
                 }
@@ -2003,7 +2023,11 @@
                 synchronized (mLock) {
                     long token = Binder.clearCallingIdentity();
                     try {
-                        BlockedNumberContract.BlockedNumbers.endBlockSuppression(mContext);
+                        if (mBlockedNumbersManager != null) {
+                            mBlockedNumbersManager.endBlockSuppression();
+                        } else {
+                            BlockedNumberContract.SystemContract.endBlockSuppression(mContext);
+                        }
                     } finally {
                         Binder.restoreCallingIdentity(token);
                     }
@@ -2092,6 +2116,14 @@
             }
         }
 
+        @Override
+        public int handleShellCommand(@NonNull ParcelFileDescriptor in,
+                @NonNull ParcelFileDescriptor out, @NonNull ParcelFileDescriptor err,
+                @NonNull String[] args) {
+            return new TelecomShellCommand(this, mContext).exec(this,
+                    in.getFileDescriptor(), out.getFileDescriptor(), err.getFileDescriptor(), args);
+        }
+
         /**
          * Print all feature flag configurations that Telecom is using for debugging purposes.
          */
@@ -2101,12 +2133,24 @@
                 // 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();
+                int maxLength = Arrays.stream(methods)
+                        .map(Method::getName)
+                        .map(String::length)
+                        .max(Integer::compare)
+                        .get();
+                String format = "\t%s: %-" + maxLength + "s %s";
+
                 if (methods.length == 0) {
                     pw.println("NONE");
                     return;
                 }
+
                 for (Method m : methods) {
-                    pw.println(m.getName() + "-> " + m.invoke(mFeatureFlags));
+                    String flagEnabled = (Boolean) m.invoke(mFeatureFlags) ? "[✅]": "[❌]";
+                    String methodName = m.getName();
+                    String camelCaseName = methodName.replaceAll("([a-z])([A-Z]+)", "$1_$2")
+                            .toLowerCase(Locale.US);
+                    pw.println(String.format(format, flagEnabled, methodName, camelCaseName));
                 }
             } catch (Exception e) {
                 pw.println("[ERROR]");
@@ -2563,34 +2607,26 @@
          * @param packageName    the package name of the app to check calls for.
          * @param userHandle     the user handle on which to check for calls.
          * @param callingPackage The caller's package name.
-         * @param detectForAllUsers indicates if calls should be detected across all users. If the
-         *                          caller does not have the ability to interact across users, get
-         *                          managed calls for the caller instead.
          * @return {@code true} if there are ongoing calls, {@code false} otherwise.
          */
         @Override
         public boolean isInSelfManagedCall(String packageName, UserHandle userHandle,
-                String callingPackage, boolean detectForAllUsers) {
+                String callingPackage) {
             try {
                 mContext.enforceCallingOrSelfPermission(READ_PRIVILEGED_PHONE_STATE,
                         "READ_PRIVILEGED_PHONE_STATE required.");
                 // Ensure that the caller has the INTERACT_ACROSS_USERS permission if it's trying
                 // to access calls that don't belong to it.
-                if (detectForAllUsers || (userHandle != null
-                        && !Binder.getCallingUserHandle().equals(userHandle))) {
+                if (!Binder.getCallingUserHandle().equals(userHandle)) {
                     enforceInAppCrossUserPermission();
-                } else {
-                    // If INTERACT_ACROSS_USERS doesn't need to be enforced, ensure that the user
-                    // being checked is the caller.
-                    userHandle = Binder.getCallingUserHandle();
                 }
 
                 Log.startSession("TSI.iISMC", Log.getPackageAbbreviation(callingPackage));
                 synchronized (mLock) {
                     long token = Binder.clearCallingIdentity();
                     try {
-                        return mCallsManager.isInSelfManagedCallCrossUsers(
-                                packageName, userHandle, detectForAllUsers);
+                        return mCallsManager.isInSelfManagedCall(
+                                packageName, userHandle);
                     } finally {
                         Binder.restoreCallingIdentity(token);
                     }
@@ -2667,10 +2703,10 @@
     private final TelecomSystem.SyncRoot mLock;
     private TransactionManager mTransactionManager;
     private final TransactionalServiceRepository mTransactionalServiceRepository;
+    private final BlockedNumbersManager mBlockedNumbersManager;
     private final FeatureFlags mFeatureFlags;
     private final com.android.internal.telephony.flags.FeatureFlags mTelephonyFeatureFlags;
 
-
     public TelecomServiceImpl(
             Context context,
             CallsManager callsManager,
@@ -2718,6 +2754,9 @@
 
         mTransactionManager = TransactionManager.getInstance();
         mTransactionalServiceRepository = new TransactionalServiceRepository();
+        mBlockedNumbersManager = mFeatureFlags.telecomMainlineBlockedNumbersManager()
+                ? mContext.getSystemService(BlockedNumbersManager.class)
+                : null;
     }
 
     @VisibleForTesting
diff --git a/src/com/android/server/telecom/TelecomShellCommand.java b/src/com/android/server/telecom/TelecomShellCommand.java
new file mode 100644
index 0000000..557002c
--- /dev/null
+++ b/src/com/android/server/telecom/TelecomShellCommand.java
@@ -0,0 +1,513 @@
+/*
+ * 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;
+
+import android.content.ComponentName;
+import android.content.Context;
+import android.net.Uri;
+import android.os.Binder;
+import android.os.Process;
+import android.os.RemoteException;
+import android.os.UserHandle;
+import android.os.UserManager;
+import android.sysprop.TelephonyProperties;
+import android.telecom.Log;
+import android.telecom.PhoneAccount;
+import android.telecom.PhoneAccountHandle;
+import android.telephony.TelephonyManager;
+import android.text.TextUtils;
+
+import com.android.internal.telecom.ITelecomService;
+import com.android.modules.utils.BasicShellCommandHandler;
+
+import java.util.Arrays;
+import java.util.stream.Collectors;
+
+/**
+ * Implements shell commands sent to telecom using the "adb shell cmd telecom..." command from shell
+ * or CTS.
+ */
+public class TelecomShellCommand extends BasicShellCommandHandler {
+    private static final String CALLING_PACKAGE = TelecomShellCommand.class.getPackageName();
+    private static final String COMMAND_SET_PHONE_ACCOUNT_ENABLED = "set-phone-account-enabled";
+    private static final String COMMAND_SET_PHONE_ACCOUNT_DISABLED = "set-phone-account-disabled";
+    private static final String COMMAND_REGISTER_PHONE_ACCOUNT = "register-phone-account";
+    private static final String COMMAND_SET_USER_SELECTED_OUTGOING_PHONE_ACCOUNT =
+            "set-user-selected-outgoing-phone-account";
+    private static final String COMMAND_REGISTER_SIM_PHONE_ACCOUNT = "register-sim-phone-account";
+    private static final String COMMAND_SET_TEST_CALL_REDIRECTION_APP =
+            "set-test-call-redirection-app";
+    private static final String COMMAND_SET_TEST_CALL_SCREENING_APP = "set-test-call-screening-app";
+    private static final String COMMAND_ADD_OR_REMOVE_CALL_COMPANION_APP =
+            "add-or-remove-call-companion-app";
+    private static final String COMMAND_SET_PHONE_ACCOUNT_SUGGESTION_COMPONENT =
+            "set-phone-acct-suggestion-component";
+    private static final String COMMAND_UNREGISTER_PHONE_ACCOUNT = "unregister-phone-account";
+    private static final String COMMAND_SET_CALL_DIAGNOSTIC_SERVICE = "set-call-diagnostic-service";
+    private static final String COMMAND_SET_DEFAULT_DIALER = "set-default-dialer";
+    private static final String COMMAND_GET_DEFAULT_DIALER = "get-default-dialer";
+    private static final String COMMAND_STOP_BLOCK_SUPPRESSION = "stop-block-suppression";
+    private static final String COMMAND_CLEANUP_STUCK_CALLS = "cleanup-stuck-calls";
+    private static final String COMMAND_CLEANUP_ORPHAN_PHONE_ACCOUNTS =
+            "cleanup-orphan-phone-accounts";
+    private static final String COMMAND_RESET_CAR_MODE = "reset-car-mode";
+    private static final String COMMAND_IS_NON_IN_CALL_SERVICE_BOUND =
+            "is-non-ui-in-call-service-bound";
+
+    /**
+     * Change the system dialer package name if a package name was specified,
+     * Example: adb shell telecom set-system-dialer <PACKAGE>
+     *
+     * Restore it to the default if if argument is "default" or no argument is passed.
+     * Example: adb shell telecom set-system-dialer default
+     */
+    private static final String COMMAND_SET_SYSTEM_DIALER = "set-system-dialer";
+    private static final String COMMAND_GET_SYSTEM_DIALER = "get-system-dialer";
+    private static final String COMMAND_WAIT_ON_HANDLERS = "wait-on-handlers";
+    private static final String COMMAND_SET_SIM_COUNT = "set-sim-count";
+    private static final String COMMAND_GET_SIM_CONFIG = "get-sim-config";
+    private static final String COMMAND_GET_MAX_PHONES = "get-max-phones";
+    private static final String COMMAND_SET_TEST_EMERGENCY_PHONE_ACCOUNT_PACKAGE_FILTER =
+            "set-test-emergency-phone-account-package-filter";
+    /**
+     * Command used to emit a distinct "mark" in the logs.
+     */
+    private static final String COMMAND_LOG_MARK = "log-mark";
+
+    private final Context mContext;
+    private final ITelecomService mTelecomService;
+    private TelephonyManager mTelephonyManager;
+    private UserManager mUserManager;
+
+    public TelecomShellCommand(ITelecomService binder, Context context) {
+        mTelecomService = binder;
+        mContext = context;
+    }
+
+    @Override
+    public int onCommand(String command) {
+        if (command == null || command.isEmpty()) {
+            onHelp();
+            return 0;
+        }
+        try {
+            switch (command) {
+                case COMMAND_SET_PHONE_ACCOUNT_ENABLED:
+                    runSetPhoneAccountEnabled(true);
+                    break;
+                case COMMAND_SET_PHONE_ACCOUNT_DISABLED:
+                    runSetPhoneAccountEnabled(false);
+                    break;
+                case COMMAND_REGISTER_PHONE_ACCOUNT:
+                    runRegisterPhoneAccount();
+                    break;
+                case COMMAND_SET_TEST_CALL_REDIRECTION_APP:
+                    runSetTestCallRedirectionApp();
+                    break;
+                case COMMAND_SET_TEST_CALL_SCREENING_APP:
+                    runSetTestCallScreeningApp();
+                    break;
+                case COMMAND_ADD_OR_REMOVE_CALL_COMPANION_APP:
+                    runAddOrRemoveCallCompanionApp();
+                    break;
+                case COMMAND_SET_PHONE_ACCOUNT_SUGGESTION_COMPONENT:
+                    runSetTestPhoneAcctSuggestionComponent();
+                    break;
+                case COMMAND_SET_CALL_DIAGNOSTIC_SERVICE:
+                    runSetCallDiagnosticService();
+                    break;
+                case COMMAND_REGISTER_SIM_PHONE_ACCOUNT:
+                    runRegisterSimPhoneAccount();
+                    break;
+                case COMMAND_SET_USER_SELECTED_OUTGOING_PHONE_ACCOUNT:
+                    runSetUserSelectedOutgoingPhoneAccount();
+                    break;
+                case COMMAND_UNREGISTER_PHONE_ACCOUNT:
+                    runUnregisterPhoneAccount();
+                    break;
+                case COMMAND_STOP_BLOCK_SUPPRESSION:
+                    runStopBlockSuppression();
+                    break;
+                case COMMAND_CLEANUP_STUCK_CALLS:
+                    runCleanupStuckCalls();
+                    break;
+                case COMMAND_CLEANUP_ORPHAN_PHONE_ACCOUNTS:
+                    runCleanupOrphanPhoneAccounts();
+                    break;
+                case COMMAND_RESET_CAR_MODE:
+                    runResetCarMode();
+                    break;
+                case COMMAND_SET_DEFAULT_DIALER:
+                    runSetDefaultDialer();
+                    break;
+                case COMMAND_GET_DEFAULT_DIALER:
+                    runGetDefaultDialer();
+                    break;
+                case COMMAND_SET_SYSTEM_DIALER:
+                    runSetSystemDialer();
+                    break;
+                case COMMAND_GET_SYSTEM_DIALER:
+                    runGetSystemDialer();
+                    break;
+                case COMMAND_WAIT_ON_HANDLERS:
+                    runWaitOnHandler();
+                    break;
+                case COMMAND_SET_SIM_COUNT:
+                    runSetSimCount();
+                    break;
+                case COMMAND_GET_SIM_CONFIG:
+                    runGetSimConfig();
+                    break;
+                case COMMAND_GET_MAX_PHONES:
+                    runGetMaxPhones();
+                    break;
+                case COMMAND_IS_NON_IN_CALL_SERVICE_BOUND:
+                    runIsNonUiInCallServiceBound();
+                    break;
+                case COMMAND_SET_TEST_EMERGENCY_PHONE_ACCOUNT_PACKAGE_FILTER:
+                    runSetEmergencyPhoneAccountPackageFilter();
+                    break;
+                case COMMAND_LOG_MARK:
+                    runLogMark();
+                    break;
+                default:
+                    return handleDefaultCommands(command);
+            }
+        } catch (Exception e) {
+            getErrPrintWriter().println("Command["+ command + "]: Error: " + e);
+            return -1;
+        }
+        return 0;
+    }
+
+    @Override
+    public void onHelp() {
+        getOutPrintWriter().println("usage: telecom [subcommand] [options]\n"
+                + "usage: telecom set-phone-account-enabled <COMPONENT> <ID> <USER_SN>\n"
+                + "usage: telecom set-phone-account-disabled <COMPONENT> <ID> <USER_SN>\n"
+                + "usage: telecom register-phone-account <COMPONENT> <ID> <USER_SN> <LABEL>\n"
+                + "usage: telecom register-sim-phone-account [-e] <COMPONENT> <ID> <USER_SN>"
+                + " <LABEL>: registers a PhoneAccount with CAPABILITY_SIM_SUBSCRIPTION"
+                + " and optionally CAPABILITY_PLACE_EMERGENCY_CALLS if \"-e\" is provided\n"
+                + "usage: telecom set-user-selected-outgoing-phone-account [-e] <COMPONENT> <ID> "
+                + "<USER_SN>\n"
+                + "usage: telecom set-test-call-redirection-app <PACKAGE>\n"
+                + "usage: telecom set-test-call-screening-app <PACKAGE>\n"
+                + "usage: telecom set-phone-acct-suggestion-component <COMPONENT>\n"
+                + "usage: telecom add-or-remove-call-companion-app <PACKAGE> <1/0>\n"
+                + "usage: telecom register-sim-phone-account <COMPONENT> <ID> <USER_SN>"
+                + " <LABEL> <ADDRESS>\n"
+                + "usage: telecom unregister-phone-account <COMPONENT> <ID> <USER_SN>\n"
+                + "usage: telecom set-call-diagnostic-service <PACKAGE>\n"
+                + "usage: telecom set-default-dialer <PACKAGE>\n"
+                + "usage: telecom get-default-dialer\n"
+                + "usage: telecom get-system-dialer\n"
+                + "usage: telecom wait-on-handlers\n"
+                + "usage: telecom set-sim-count <COUNT>\n"
+                + "usage: telecom get-sim-config\n"
+                + "usage: telecom get-max-phones\n"
+                + "usage: telecom stop-block-suppression: Stop suppressing the blocked number"
+                + " provider after a call to emergency services.\n"
+                + "usage: telecom cleanup-stuck-calls: Clear any disconnected calls that have"
+                + " gotten wedged in Telecom.\n"
+                + "usage: telecom cleanup-orphan-phone-accounts: remove any phone accounts that"
+                + " no longer have a valid UserHandle or accounts that no longer belongs to an"
+                + " installed package.\n"
+                + "usage: telecom set-emer-phone-account-filter <PACKAGE>\n"
+                + "\n"
+                + "telecom set-phone-account-enabled: Enables the given phone account, if it has"
+                + " already been registered with Telecom.\n"
+                + "\n"
+                + "telecom set-phone-account-disabled: Disables the given phone account, if it"
+                + " has already been registered with telecom.\n"
+                + "\n"
+                + "telecom set-call-diagnostic-service: overrides call diagnostic service.\n"
+                + "telecom set-default-dialer: Sets the override default dialer to the given"
+                + " component; this will override whatever the dialer role is set to.\n"
+                + "\n"
+                + "telecom get-default-dialer: Displays the current default dialer.\n"
+                + "\n"
+                + "telecom get-system-dialer: Displays the current system dialer.\n"
+                + "telecom set-system-dialer: Set the override system dialer to the given"
+                + " component. To remove the override, send \"default\"\n"
+                + "\n"
+                + "telecom wait-on-handlers: Wait until all handlers finish their work.\n"
+                + "\n"
+                + "telecom set-sim-count: Set num SIMs (2 for DSDS, 1 for single SIM."
+                + " This may restart the device.\n"
+                + "\n"
+                + "telecom get-sim-config: Get the mSIM config string. \"DSDS\" for DSDS mode,"
+                + " or \"\" for single SIM\n"
+                + "\n"
+                + "telecom get-max-phones: Get the max supported phones from the modem.\n"
+                + "telecom set-test-emergency-phone-account-package-filter <PACKAGE>: sets a"
+                + " package name that will be used for test emergency calls. To clear,"
+                + " send an empty package name. Real emergency calls will still be placed"
+                + " over Telephony.\n"
+                + "telecom log-mark <MESSAGE>: emits a message into the telecom logs.  Useful for "
+                + "testers to indicate where in the logs various test steps take place.\n"
+                + "telecom is-non-ui-in-call-service-bound <PACKAGE>: queries a particular "
+                + "non-ui-InCallService in InCallController to determine if it is bound \n"
+        );
+    }
+    private void runSetPhoneAccountEnabled(boolean enabled) throws RemoteException {
+        final PhoneAccountHandle handle = getPhoneAccountHandleFromArgs();
+        final boolean success =  mTelecomService.enablePhoneAccount(handle, enabled);
+        if (success) {
+            getOutPrintWriter().println("Success - " + handle
+                    + (enabled ? " enabled." : " disabled."));
+        } else {
+            getOutPrintWriter().println("Error - is " + handle + " a valid PhoneAccount?");
+        }
+    }
+
+    private void runRegisterPhoneAccount() throws RemoteException {
+        final PhoneAccountHandle handle = getPhoneAccountHandleFromArgs();
+        final String label = getNextArgRequired();
+        PhoneAccount account = PhoneAccount.builder(handle, label)
+                .setCapabilities(PhoneAccount.CAPABILITY_CALL_PROVIDER).build();
+        mTelecomService.registerPhoneAccount(account, CALLING_PACKAGE);
+        getOutPrintWriter().println("Success - " + handle + " registered.");
+    }
+
+    private void runRegisterSimPhoneAccount() throws RemoteException {
+        boolean isEmergencyAccount = false;
+        String opt;
+        while ((opt = getNextOption()) != null) {
+            switch (opt) {
+                case "-e": {
+                    isEmergencyAccount = true;
+                    break;
+                }
+            }
+        }
+        final PhoneAccountHandle handle = getPhoneAccountHandleFromArgs();
+        final String label = getNextArgRequired();
+        final String address = getNextArgRequired();
+        int capabilities = PhoneAccount.CAPABILITY_CALL_PROVIDER
+                | PhoneAccount.CAPABILITY_SIM_SUBSCRIPTION
+                | (isEmergencyAccount ? PhoneAccount.CAPABILITY_PLACE_EMERGENCY_CALLS : 0);
+        PhoneAccount account = PhoneAccount.builder(
+                        handle, label)
+                .setAddress(Uri.parse(address))
+                .setSubscriptionAddress(Uri.parse(address))
+                .setCapabilities(capabilities)
+                .setShortDescription(label)
+                .addSupportedUriScheme(PhoneAccount.SCHEME_TEL)
+                .addSupportedUriScheme(PhoneAccount.SCHEME_VOICEMAIL)
+                .build();
+        mTelecomService.registerPhoneAccount(account, CALLING_PACKAGE);
+        getOutPrintWriter().println("Success - " + handle + " registered.");
+    }
+
+    private void runSetTestCallRedirectionApp() throws RemoteException {
+        final String packageName = getNextArg();
+        mTelecomService.setTestDefaultCallRedirectionApp(packageName);
+    }
+
+    private void runSetTestCallScreeningApp() throws RemoteException {
+        final String packageName = getNextArg();
+        mTelecomService.setTestDefaultCallScreeningApp(packageName);
+    }
+
+    private void runAddOrRemoveCallCompanionApp() throws RemoteException {
+        final String packageName = getNextArgRequired();
+        String isAdded = getNextArgRequired();
+        boolean isAddedBool = "1".equals(isAdded);
+        mTelecomService.addOrRemoveTestCallCompanionApp(packageName, isAddedBool);
+    }
+
+    private void runSetCallDiagnosticService() throws RemoteException {
+        String packageName = getNextArg();
+        if ("default".equals(packageName)) packageName = null;
+        mTelecomService.setTestCallDiagnosticService(packageName);
+        getOutPrintWriter().println("Success - " + packageName
+                + " set as call diagnostic service.");
+    }
+
+    private void runSetTestPhoneAcctSuggestionComponent() throws RemoteException {
+        final String componentName = getNextArg();
+        mTelecomService.setTestPhoneAcctSuggestionComponent(componentName);
+    }
+
+    private void runSetUserSelectedOutgoingPhoneAccount() throws RemoteException {
+        Log.i(this, "runSetUserSelectedOutgoingPhoneAccount");
+        final PhoneAccountHandle handle = getPhoneAccountHandleFromArgs();
+        mTelecomService.setUserSelectedOutgoingPhoneAccount(handle);
+        getOutPrintWriter().println("Success - " + handle + " set as default outgoing account.");
+    }
+
+    private void runUnregisterPhoneAccount() throws RemoteException {
+        final PhoneAccountHandle handle = getPhoneAccountHandleFromArgs();
+        mTelecomService.unregisterPhoneAccount(handle, CALLING_PACKAGE);
+        getOutPrintWriter().println("Success - " + handle + " unregistered.");
+    }
+
+    private void runStopBlockSuppression() throws RemoteException {
+        mTelecomService.stopBlockSuppression();
+    }
+
+    private void runCleanupStuckCalls() throws RemoteException {
+        mTelecomService.cleanupStuckCalls();
+    }
+
+    private void runCleanupOrphanPhoneAccounts() throws RemoteException {
+        getOutPrintWriter().println("Success - cleaned up "
+                + mTelecomService.cleanupOrphanPhoneAccounts()
+                + "  phone accounts.");
+    }
+
+    private void runResetCarMode() throws RemoteException {
+        mTelecomService.resetCarMode();
+    }
+
+    private void runSetDefaultDialer() throws RemoteException {
+        String packageName = getNextArg();
+        if ("default".equals(packageName)) packageName = null;
+        mTelecomService.setTestDefaultDialer(packageName);
+        getOutPrintWriter().println("Success - " + packageName
+                + " set as override default dialer.");
+    }
+
+    private void runSetSystemDialer() throws RemoteException {
+        final String flatComponentName = getNextArg();
+        final ComponentName componentName = (flatComponentName.equals("default")
+                ? null : parseComponentName(flatComponentName));
+        mTelecomService.setSystemDialer(componentName);
+        getOutPrintWriter().println("Success - " + componentName + " set as override system dialer.");
+    }
+
+    private void runGetDefaultDialer() throws RemoteException {
+        getOutPrintWriter().println(mTelecomService.getDefaultDialerPackage(CALLING_PACKAGE));
+    }
+
+    private void runGetSystemDialer() throws RemoteException {
+        getOutPrintWriter().println(mTelecomService.getSystemDialerPackage(CALLING_PACKAGE));
+    }
+
+    private void runWaitOnHandler() throws RemoteException {
+
+    }
+
+    private void runSetSimCount() throws RemoteException {
+        if (!callerIsRoot()) {
+            getOutPrintWriter().println("set-sim-count requires adb root");
+            return;
+        }
+        int numSims = Integer.parseInt(getNextArgRequired());
+        getOutPrintWriter().println("Setting sim count to " + numSims + ". Device may reboot");
+        getTelephonyManager().switchMultiSimConfig(numSims);
+    }
+
+    /**
+     * prints out whether a particular non-ui InCallServices is bound in a call
+     */
+    public void runIsNonUiInCallServiceBound() throws RemoteException {
+        if (TextUtils.isEmpty(peekNextArg())) {
+            getOutPrintWriter().println("No Argument passed. Please pass a <PACKAGE_NAME> to "
+                    + "lookup.");
+        } else {
+            getOutPrintWriter().println(
+                    String.valueOf(mTelecomService.isNonUiInCallServiceBound(getNextArg())));
+        }
+    }
+
+    /**
+     * Prints the mSIM config to the console.
+     * "DSDS" for a phone in DSDS mode
+     * "" (empty string) for a phone in SS mode
+     */
+    private void runGetSimConfig() throws RemoteException {
+        getOutPrintWriter().println(TelephonyProperties.multi_sim_config().orElse(""));
+    }
+
+    private void runGetMaxPhones() throws RemoteException {
+        // how many logical modems can be potentially active simultaneously
+        getOutPrintWriter().println(getTelephonyManager().getSupportedModemCount());
+    }
+
+    private void runSetEmergencyPhoneAccountPackageFilter() throws RemoteException {
+        String packageName = getNextArg();
+        if (TextUtils.isEmpty(packageName)) {
+            mTelecomService.setTestEmergencyPhoneAccountPackageNameFilter(null);
+            getOutPrintWriter().println("Success - filter cleared");
+        } else {
+            mTelecomService.setTestEmergencyPhoneAccountPackageNameFilter(packageName);
+            getOutPrintWriter().println("Success = filter set to " + packageName);
+        }
+
+    }
+
+    private void runLogMark() throws RemoteException {
+        String message = Arrays.stream(peekRemainingArgs()).collect(Collectors.joining(" "));
+        mTelecomService.requestLogMark(message);
+    }
+
+    private PhoneAccountHandle getPhoneAccountHandleFromArgs() throws RemoteException {
+        if (TextUtils.isEmpty(peekNextArg())) {
+            return null;
+        }
+        final ComponentName component = parseComponentName(getNextArgRequired());
+        final String accountId = getNextArgRequired();
+        final String userSnInStr = getNextArgRequired();
+        UserHandle userHandle;
+        try {
+            final int userSn = Integer.parseInt(userSnInStr);
+            userHandle = UserHandle.of(getUserManager().getUserHandle(userSn));
+        } catch (NumberFormatException ex) {
+            Log.w(this, "getPhoneAccountHandleFromArgs - invalid user %s", userSnInStr);
+            throw new IllegalArgumentException ("Invalid user serial number " + userSnInStr);
+        }
+        return new PhoneAccountHandle(component, accountId, userHandle);
+    }
+
+    private boolean callerIsRoot() {
+        return Process.ROOT_UID == Process.myUid();
+    }
+
+    private ComponentName parseComponentName(String component) {
+        ComponentName cn = ComponentName.unflattenFromString(component);
+        if (cn == null) {
+            throw new IllegalArgumentException ("Invalid component " + component);
+        }
+        return cn;
+    }
+
+    private TelephonyManager getTelephonyManager() throws IllegalStateException {
+        if (mTelephonyManager == null) {
+            mTelephonyManager = mContext.getSystemService(TelephonyManager.class);
+        }
+        if (mTelephonyManager == null) {
+            Log.w(this, "getTelephonyManager: Can't access telephony service.");
+            throw new IllegalStateException("Could not access the Telephony Service. Is the system "
+                    + "running?");
+        }
+        return mTelephonyManager;
+    }
+
+    private UserManager getUserManager() throws IllegalStateException {
+        if (mUserManager == null) {
+            mUserManager = mContext.getSystemService(UserManager.class);
+        }
+        if (mUserManager == null) {
+            Log.w(this, "getUserManager: Can't access UserManager service.");
+            throw new IllegalStateException("Could not access the UserManager Service. Is the "
+                    + "system running?");
+        }
+        return mUserManager;
+    }
+}
diff --git a/src/com/android/server/telecom/TelecomSystem.java b/src/com/android/server/telecom/TelecomSystem.java
index 1d0300d..d7dcf38 100644
--- a/src/com/android/server/telecom/TelecomSystem.java
+++ b/src/com/android/server/telecom/TelecomSystem.java
@@ -29,7 +29,6 @@
 import android.os.BugreportManager;
 import android.os.DropBoxManager;
 import android.os.UserHandle;
-import android.os.UserManager;
 import android.telecom.Log;
 import android.telecom.PhoneAccountHandle;
 import android.telephony.AnomalyReporter;
@@ -45,9 +44,7 @@
 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;
@@ -248,7 +245,7 @@
         try {
             mPhoneAccountRegistrar = new PhoneAccountRegistrar(mContext, mLock, defaultDialerCache,
                     packageName -> AppLabelProxy.Util.getAppLabel(
-                            mContext.getPackageManager(), packageName), null);
+                            mContext.getPackageManager(), packageName), null, mFeatureFlags);
 
             mContactsAsyncHelper = contactsAsyncHelperFactory.create(
                     new ContactsAsyncHelper.ContentResolverAdapter() {
@@ -307,7 +304,7 @@
                 @Override
                 public CallEndpointController create(Context context, SyncRoot lock,
                         CallsManager callsManager) {
-                    return new CallEndpointController(context, callsManager);
+                    return new CallEndpointController(context, callsManager, featureFlags);
                 }
             };
 
@@ -349,22 +346,23 @@
 
             ToastFactory toastFactory = new ToastFactory() {
                 @Override
-                public Toast makeText(Context context, int resId, int duration) {
+                public void makeText(Context context, int resId, int duration) {
                     if (mFeatureFlags.telecomResolveHiddenDependencies()) {
-                        return Toast.makeText(context, resId, duration);
+                        context.getMainExecutor().execute(() ->
+                                Toast.makeText(context, resId, duration).show());
                     } else {
-                        return Toast.makeText(context, context.getMainLooper(),
-                                context.getString(resId),
-                                duration);
+                        Toast.makeText(context, context.getMainLooper(),
+                                context.getString(resId), duration).show();
                     }
                 }
 
                 @Override
-                public Toast makeText(Context context, CharSequence text, int duration) {
+                public void makeText(Context context, CharSequence text, int duration) {
                     if (mFeatureFlags.telecomResolveHiddenDependencies()) {
-                        return Toast.makeText(context, text, duration);
+                        context.getMainExecutor().execute(() ->
+                                Toast.makeText(context, text, duration).show());
                     } else {
-                        return Toast.makeText(context, context.getMainLooper(), text, duration);
+                        Toast.makeText(context, context.getMainLooper(), text, duration).show();
                     }
                 }
             };
@@ -483,7 +481,6 @@
                     Manifest.permission.CONTROL_INCALL_EXPERIENCE, null);
 
             // There is no USER_SWITCHED broadcast for user 0, handle it here explicitly.
-            final UserManager userManager = UserManager.get(mContext);
             mTelecomServiceImpl = new TelecomServiceImpl(
                     mContext, mCallsManager, mPhoneAccountRegistrar,
                     new CallIntentProcessor.AdapterImpl(defaultDialerCache),
@@ -491,7 +488,7 @@
                         @Override
                         public UserCallIntentProcessor create(Context context,
                                 UserHandle userHandle) {
-                            return new UserCallIntentProcessor(context, userHandle);
+                            return new UserCallIntentProcessor(context, userHandle, featureFlags);
                         }
                     },
                     defaultDialerCache,
@@ -534,4 +531,8 @@
     public boolean isBootComplete() {
         return mIsBootComplete;
     }
+
+    public FeatureFlags getFeatureFlags() {
+        return mFeatureFlags;
+    }
 }
diff --git a/src/com/android/server/telecom/TelephonyUtil.java b/src/com/android/server/telecom/TelephonyUtil.java
index 7eb08d7..0a7dc19 100644
--- a/src/com/android/server/telecom/TelephonyUtil.java
+++ b/src/com/android/server/telecom/TelephonyUtil.java
@@ -74,7 +74,7 @@
             TelephonyManager tm = (TelephonyManager) context.getSystemService(
                     Context.TELEPHONY_SERVICE);
             return handle != null && tm.isEmergencyNumber(handle.getSchemeSpecificPart());
-        } catch (IllegalStateException ise) {
+        } catch (UnsupportedOperationException | IllegalStateException ignored) {
             return false;
         }
     }
diff --git a/src/com/android/server/telecom/TransactionalServiceWrapper.java b/src/com/android/server/telecom/TransactionalServiceWrapper.java
index d497c6a..32cb896 100644
--- a/src/com/android/server/telecom/TransactionalServiceWrapper.java
+++ b/src/com/android/server/telecom/TransactionalServiceWrapper.java
@@ -21,6 +21,7 @@
 import static android.telecom.TelecomManager.TELECOM_TRANSACTION_SUCCESS;
 
 import android.content.ComponentName;
+import android.os.Binder;
 import android.os.Bundle;
 import android.os.IBinder;
 import android.os.OutcomeReceiver;
@@ -62,7 +63,7 @@
  * on a per-client basis which is tied to a {@link PhoneAccountHandle}
  */
 public class TransactionalServiceWrapper implements
-        ConnectionServiceFocusManager.ConnectionServiceFocus {
+        ConnectionServiceFocusManager.ConnectionServiceFocus, CallSourceService {
     private static final String TAG = TransactionalServiceWrapper.class.getSimpleName();
 
     // CallControl : Client (ex. voip app) --> Telecom
@@ -185,10 +186,12 @@
         @Override
         public void setActive(String callId, android.os.ResultReceiver callback)
                 throws RemoteException {
+            long token = Binder.clearCallingIdentity();
             try {
                 Log.startSession("TSW.sA");
                 createTransactions(callId, callback, SET_ACTIVE);
             } finally {
+                Binder.restoreCallingIdentity(token);
                 Log.endSession();
             }
         }
@@ -196,10 +199,12 @@
         @Override
         public void answer(int videoState, String callId, android.os.ResultReceiver callback)
                 throws RemoteException {
+            long token = Binder.clearCallingIdentity();
             try {
                 Log.startSession("TSW.a");
                 createTransactions(callId, callback, ANSWER, videoState);
             } finally {
+                Binder.restoreCallingIdentity(token);
                 Log.endSession();
             }
         }
@@ -207,10 +212,12 @@
         @Override
         public void setInactive(String callId, android.os.ResultReceiver callback)
                 throws RemoteException {
+            long token = Binder.clearCallingIdentity();
             try {
                 Log.startSession("TSW.sI");
                 createTransactions(callId, callback, SET_INACTIVE);
             } finally {
+                Binder.restoreCallingIdentity(token);
                 Log.endSession();
             }
         }
@@ -219,10 +226,12 @@
         public void disconnect(String callId, DisconnectCause disconnectCause,
                 android.os.ResultReceiver callback)
                 throws RemoteException {
+            long token = Binder.clearCallingIdentity();
             try {
                 Log.startSession("TSW.d");
                 createTransactions(callId, callback, DISCONNECT, disconnectCause);
             } finally {
+                Binder.restoreCallingIdentity(token);
                 Log.endSession();
             }
         }
@@ -230,11 +239,13 @@
         @Override
         public void setMuteState(boolean isMuted, android.os.ResultReceiver callback)
                 throws RemoteException {
+            long token = Binder.clearCallingIdentity();
             try {
                 Log.startSession("TSW.sMS");
                 addTransactionsToManager(
                         new SetMuteStateTransaction(mCallsManager, isMuted), callback);
             } finally {
+                Binder.restoreCallingIdentity(token);
                 Log.endSession();
             }
         }
@@ -242,10 +253,12 @@
         @Override
         public void startCallStreaming(String callId, android.os.ResultReceiver callback)
                 throws RemoteException {
+            long token = Binder.clearCallingIdentity();
             try {
                 Log.startSession("TSW.sCS");
                 createTransactions(callId, callback, START_STREAMING);
             } finally {
+                Binder.restoreCallingIdentity(token);
                 Log.endSession();
             }
         }
@@ -253,10 +266,12 @@
         @Override
         public void requestVideoState(int videoState, String callId, ResultReceiver callback)
                 throws RemoteException {
+            long token = Binder.clearCallingIdentity();
             try {
                 Log.startSession("TSW.rVS");
                 createTransactions(callId, callback, REQUEST_VIDEO_STATE, videoState);
             } finally {
+                Binder.restoreCallingIdentity(token);
                 Log.endSession();
             }
         }
@@ -334,11 +349,13 @@
 
         @Override
         public void requestCallEndpointChange(CallEndpoint endpoint, ResultReceiver callback) {
+            long token = Binder.clearCallingIdentity();
             try {
                 Log.startSession("TSW.rCEC");
                 addTransactionsToManager(new EndpointChangeTransaction(endpoint, mCallsManager),
                         callback);
             } finally {
+                Binder.restoreCallingIdentity(token);
                 Log.endSession();
             }
         }
@@ -348,6 +365,7 @@
          */
         @Override
         public void sendEvent(String callId, String event, Bundle extras) {
+            long token = Binder.clearCallingIdentity();
             try {
                 Log.startSession("TSW.sE");
                 Call call = mTrackedCalls.get(callId);
@@ -359,6 +377,7 @@
                                     + "found. Most likely the call has been disconnected");
                 }
             } finally {
+                Binder.restoreCallingIdentity(token);
                 Log.endSession();
             }
         }
@@ -552,6 +571,7 @@
         }
     }
 
+    @Override
     public void onCallEndpointChanged(Call call, CallEndpoint endpoint) {
         if (call != null) {
             try {
@@ -561,6 +581,7 @@
         }
     }
 
+    @Override
     public void onAvailableCallEndpointsChanged(Call call, Set<CallEndpoint> endpoints) {
         if (call != null) {
             try {
@@ -571,6 +592,7 @@
         }
     }
 
+    @Override
     public void onMuteStateChanged(Call call, boolean isMuted) {
         if (call != null) {
             try {
diff --git a/src/com/android/server/telecom/UserUtil.java b/src/com/android/server/telecom/UserUtil.java
index 670ad34..e159c04 100644
--- a/src/com/android/server/telecom/UserUtil.java
+++ b/src/com/android/server/telecom/UserUtil.java
@@ -36,18 +36,28 @@
     }
 
     private static UserInfo getUserInfoFromUserHandle(Context context, UserHandle userHandle) {
-        UserManager userManager = (UserManager) context.getSystemService(Context.USER_SERVICE);
+        UserManager userManager = context.getSystemService(UserManager.class);
         return userManager.getUserInfo(userHandle.getIdentifier());
     }
 
-    public static boolean isManagedProfile(Context context, UserHandle userHandle) {
+    public static boolean isManagedProfile(Context context, UserHandle userHandle,
+            FeatureFlags featureFlags) {
+        UserManager userManager = context.createContextAsUser(userHandle, 0)
+                .getSystemService(UserManager.class);
         UserInfo userInfo = getUserInfoFromUserHandle(context, userHandle);
-        return userInfo != null && userInfo.isManagedProfile();
+        return featureFlags.telecomResolveHiddenDependencies()
+                ? userManager != null && userManager.isManagedProfile()
+                : userInfo != null && userInfo.isManagedProfile();
     }
 
-    public static boolean isProfile(Context context, UserHandle userHandle) {
+    public static boolean isProfile(Context context, UserHandle userHandle,
+            FeatureFlags featureFlags) {
+        UserManager userManager = context.createContextAsUser(userHandle, 0)
+                .getSystemService(UserManager.class);
         UserInfo userInfo = getUserInfoFromUserHandle(context, userHandle);
-        return userInfo != null && userInfo.profileGroupId != userInfo.id;
+        return featureFlags.telecomResolveHiddenDependencies()
+                ? userManager != null && userManager.isProfile()
+                : userInfo != null && userInfo.profileGroupId != userInfo.id;
     }
 
     public static void showErrorDialogForRestrictedOutgoingCall(Context context,
@@ -61,7 +71,8 @@
     }
 
     public static boolean hasOutgoingCallsUserRestriction(Context context,
-            UserHandle userHandle, Uri handle, boolean isSelfManaged, String tag) {
+            UserHandle userHandle, Uri handle, boolean isSelfManaged, String tag,
+            FeatureFlags featureFlags) {
         // Set handle for conference calls. Refer to {@link Connection#ADHOC_CONFERENCE_ADDRESS}.
         if (handle == null) {
             handle = Uri.parse("tel:conf-factory");
@@ -71,20 +82,23 @@
             // 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)) {
+            if (!UserUtil.isManagedProfile(context, userHandle, featureFlags)) {
+                final UserManager userManager = context.getSystemService(UserManager.class);
+                boolean hasUserRestriction = featureFlags.telecomResolveHiddenDependencies()
+                        ? userManager.hasUserRestrictionForUser(
+                                UserManager.DISALLOW_OUTGOING_CALLS, userHandle)
+                        : userManager.hasUserRestriction(
+                                UserManager.DISALLOW_OUTGOING_CALLS, 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)) {
+                    } else if (hasUserRestriction) {
                         final DevicePolicyManager dpm =
                                 context.getSystemService(DevicePolicyManager.class);
                         if (dpm == null) {
diff --git a/src/com/android/server/telecom/bluetooth/BluetoothDeviceManager.java b/src/com/android/server/telecom/bluetooth/BluetoothDeviceManager.java
index a0ffe63..50476fe 100644
--- a/src/com/android/server/telecom/bluetooth/BluetoothDeviceManager.java
+++ b/src/com/android/server/telecom/bluetooth/BluetoothDeviceManager.java
@@ -16,6 +16,9 @@
 
 package com.android.server.telecom.bluetooth;
 
+import static com.android.server.telecom.AudioRoute.TYPE_BLUETOOTH_HA;
+import static com.android.server.telecom.AudioRoute.TYPE_BLUETOOTH_SCO;
+
 import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothDevice;
 import android.bluetooth.BluetoothHeadset;
@@ -34,6 +37,7 @@
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.internal.util.IndentingPrintWriter;
+import com.android.server.telecom.AudioRoute;
 import com.android.server.telecom.CallAudioCommunicationDeviceTracker;
 import com.android.server.telecom.flags.FeatureFlags;
 
@@ -489,12 +493,14 @@
         }
     }
 
-    public void disconnectSco() {
+    public int disconnectSco() {
+        int result = BluetoothStatusCodes.ERROR_UNKNOWN;
         if (getBluetoothHeadset() == null) {
             Log.w(this, "Trying to disconnect audio but no headset service exists.");
         } else {
-            mBluetoothHeadset.disconnectAudio();
+            result = mBluetoothHeadset.disconnectAudio();
         }
+        return result;
     }
 
     public boolean isLeAudioCommunicationDevice() {
@@ -651,6 +657,28 @@
         return result;
     }
 
+    public boolean setCommunicationDeviceForAddress(String address) {
+        AudioDeviceInfo deviceInfo = 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());
+            if (device.getAddress().equals(address)) {
+                deviceInfo = device;
+                break;
+            }
+        }
+
+        if (!mAudioManager.getCommunicationDevice().equals(deviceInfo)) {
+            return mAudioManager.setCommunicationDevice(deviceInfo);
+        }
+        return true;
+    }
+
     // 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) {
@@ -747,6 +775,54 @@
         }
     }
 
+    /**
+     * Used by CallAudioRouteController in order to connect the BT device.
+     * @param device {@link BluetoothDevice} to connect to.
+     * @param type {@link AudioRoute.AudioRouteType} associated with the device.
+     * @return {@code true} if device was successfully connected, {@code false} otherwise.
+     */
+    public boolean connectAudio(BluetoothDevice device, @AudioRoute.AudioRouteType int type) {
+        String address = device.getAddress();
+        int callProfile = BluetoothProfile.LE_AUDIO;
+        if (type == TYPE_BLUETOOTH_SCO) {
+            callProfile = BluetoothProfile.HEADSET;
+        } else if (type == TYPE_BLUETOOTH_HA) {
+            callProfile = BluetoothProfile.HEARING_AID;
+        }
+
+        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
+                || callProfile == BluetoothProfile.HEARING_AID) {
+            return mBluetoothAdapter.setActiveDevice(device, BluetoothAdapter.ACTIVE_DEVICE_ALL);
+        } else if (callProfile == BluetoothProfile.HEADSET) {
+            boolean success = mBluetoothAdapter.setActiveDevice(device,
+                    BluetoothAdapter.ACTIVE_DEVICE_PHONE_CALL);
+            if (!success) {
+                Log.w(this, "Couldn't set active device to %s", address);
+                return false;
+            }
+            if (getBluetoothHeadset() != null) {
+                int scoConnectionRequest = mBluetoothHeadset.connectAudio();
+                return scoConnectionRequest == BluetoothStatusCodes.SUCCESS ||
+                        scoConnectionRequest
+                                == BluetoothStatusCodes.ERROR_AUDIO_DEVICE_ALREADY_CONNECTED;
+            } else {
+                Log.w(this, "Couldn't find bluetooth headset service");
+                return false;
+            }
+        } else {
+            Log.w(this, "Attempting to turn on audio for a disconnected device");
+            return false;
+        }
+    }
+
     public void cacheHearingAidDevice() {
         if (mBluetoothAdapter != null) {
             for (BluetoothDevice device : mBluetoothAdapter.getActiveDevices(
diff --git a/src/com/android/server/telecom/bluetooth/BluetoothRouteManager.java b/src/com/android/server/telecom/bluetooth/BluetoothRouteManager.java
index 7da5339..d2686e7 100644
--- a/src/com/android/server/telecom/bluetooth/BluetoothRouteManager.java
+++ b/src/com/android/server/telecom/bluetooth/BluetoothRouteManager.java
@@ -40,14 +40,12 @@
 import com.android.server.telecom.Timeouts;
 import com.android.server.telecom.flags.FeatureFlags;
 
-import java.util.ArrayList;
 import java.util.Collection;
 import java.util.HashMap;
 import java.util.HashSet;
 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;
@@ -1048,4 +1046,8 @@
             mHfpActiveDeviceCache = device;
         }
     }
+
+    public BluetoothDeviceManager getDeviceManager() {
+        return mDeviceManager;
+    }
 }
diff --git a/src/com/android/server/telecom/bluetooth/BluetoothStateReceiver.java b/src/com/android/server/telecom/bluetooth/BluetoothStateReceiver.java
index 6d80cd5..af9e07b 100644
--- a/src/com/android/server/telecom/bluetooth/BluetoothStateReceiver.java
+++ b/src/com/android/server/telecom/bluetooth/BluetoothStateReceiver.java
@@ -22,6 +22,8 @@
 import static com.android.server.telecom.CallAudioRouteAdapter.BT_AUDIO_DISCONNECTED;
 import static com.android.server.telecom.CallAudioRouteAdapter.BT_DEVICE_ADDED;
 import static com.android.server.telecom.CallAudioRouteAdapter.BT_DEVICE_REMOVED;
+import static com.android.server.telecom.CallAudioRouteAdapter.PENDING_ROUTE_FAILED;
+import static com.android.server.telecom.CallAudioRouteAdapter.SWITCH_BLUETOOTH;
 import static com.android.server.telecom.bluetooth.BluetoothRouteManager.BT_AUDIO_IS_ON;
 import static com.android.server.telecom.bluetooth.BluetoothRouteManager.BT_AUDIO_LOST;
 
@@ -44,6 +46,7 @@
 import com.android.server.telecom.AudioRoute;
 import com.android.server.telecom.CallAudioCommunicationDeviceTracker;
 import com.android.server.telecom.CallAudioRouteAdapter;
+import com.android.server.telecom.CallAudioRouteController;
 import com.android.server.telecom.flags.FeatureFlags;
 import com.android.server.telecom.flags.Flags;
 
@@ -218,6 +221,24 @@
             } else {
                 mCallAudioRouteAdapter.sendMessageWithSessionInfo(BT_ACTIVE_DEVICE_PRESENT,
                         audioRouteType, device.getAddress());
+                if (deviceType == BluetoothDeviceManager.DEVICE_TYPE_HEARING_AID
+                        || deviceType == BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO) {
+                    if (!mBluetoothDeviceManager.setCommunicationDeviceForAddress(
+                            device.getAddress())) {
+                        Log.i(this, "handleActiveDeviceChanged: Failed to set "
+                                + "communication device for %s. Sending PENDING_ROUTE_FAILED to "
+                                + "pending audio route.", device);
+                        mCallAudioRouteAdapter.getPendingAudioRoute()
+                                .onMessageReceived(PENDING_ROUTE_FAILED, device.getAddress());
+                    } else {
+                        // Track the currently set communication device.
+                        int routeType = deviceType == BluetoothDeviceManager.DEVICE_TYPE_LE_AUDIO
+                                ? AudioRoute.TYPE_BLUETOOTH_LE
+                                : AudioRoute.TYPE_BLUETOOTH_HA;
+                        mCallAudioRouteAdapter.getPendingAudioRoute()
+                                .setCommunicationDeviceType(routeType);
+                    }
+                }
             }
         } else {
             mBluetoothRouteManager.onActiveDeviceChanged(device, deviceType);
diff --git a/src/com/android/server/telecom/callfiltering/BlockCheckerAdapter.java b/src/com/android/server/telecom/callfiltering/BlockCheckerAdapter.java
index 1fda542..55540de 100644
--- a/src/com/android/server/telecom/callfiltering/BlockCheckerAdapter.java
+++ b/src/com/android/server/telecom/callfiltering/BlockCheckerAdapter.java
@@ -19,12 +19,19 @@
 import android.content.Context;
 import android.os.Bundle;
 import android.provider.BlockedNumberContract;
+import android.provider.BlockedNumbersManager;
 import android.telecom.Log;
 
+import com.android.server.telecom.flags.FeatureFlags;
+
 public class BlockCheckerAdapter {
     private static final String TAG = BlockCheckerAdapter.class.getSimpleName();
 
-    public BlockCheckerAdapter() { }
+    private FeatureFlags mFeatureFlags;
+
+    public BlockCheckerAdapter(FeatureFlags featureFlags) {
+        mFeatureFlags = featureFlags;
+    }
 
     /**
      * Returns the call blocking status for the {@code phoneNumber}.
@@ -32,7 +39,6 @@
      * This method catches all underlying exceptions to ensure that this method never throws any
      * exception.
      *
-     * @param context the context of the caller.
      * @param phoneNumber the number to check.
      * @param numberPresentation the presentation code associated with the call.
      * @param isNumberInContacts indicates if the provided number exists as a contact.
@@ -48,10 +54,20 @@
             int numberPresentation, boolean isNumberInContacts) {
         int blockStatus = BlockedNumberContract.STATUS_NOT_BLOCKED;
         long startTimeNano = System.nanoTime();
+        BlockedNumbersManager blockedNumbersManager = mFeatureFlags
+                .telecomMainlineBlockedNumbersManager()
+                ? context.getSystemService(BlockedNumbersManager.class)
+                : null;
 
         try {
-            blockStatus = BlockedNumberContract.BlockedNumbers.shouldSystemBlockNumber(
-                    context, phoneNumber, numberPresentation, isNumberInContacts);
+            Bundle extras = new Bundle();
+            extras.putInt(BlockedNumberContract.EXTRA_CALL_PRESENTATION, numberPresentation);
+            extras.putBoolean(BlockedNumberContract.EXTRA_CONTACT_EXIST, isNumberInContacts);
+            blockStatus = blockedNumbersManager != null
+                    ? blockedNumbersManager.shouldSystemBlockNumber(phoneNumber,
+                    numberPresentation, isNumberInContacts)
+                    : BlockedNumberContract.SystemContract.shouldSystemBlockNumber(context,
+                            phoneNumber, extras);
             if (blockStatus != BlockedNumberContract.STATUS_NOT_BLOCKED) {
                 Log.d(TAG, phoneNumber + " is blocked.");
             }
diff --git a/src/com/android/server/telecom/callfiltering/BlockedNumbersAdapter.java b/src/com/android/server/telecom/callfiltering/BlockedNumbersAdapter.java
index f640826..66137d5 100644
--- a/src/com/android/server/telecom/callfiltering/BlockedNumbersAdapter.java
+++ b/src/com/android/server/telecom/callfiltering/BlockedNumbersAdapter.java
@@ -20,10 +20,10 @@
 
 /**
  * Adapter interface that wraps methods from
- * {@link android.provider.BlockedNumberContract.BlockedNumbers} and
+ * {@link android.provider.BlockedNumbersManager} and
  * {@link com.android.server.telecom.settings.BlockedNumbersUtil} to make things testable.
  */
 public interface BlockedNumbersAdapter {
-    boolean shouldShowEmergencyCallNotification (Context context);
+    boolean shouldShowEmergencyCallNotification(Context context);
     void updateEmergencyCallNotification(Context context, boolean showNotification);
 }
diff --git a/src/com/android/server/telecom/callredirection/CallRedirectionProcessorHelper.java b/src/com/android/server/telecom/callredirection/CallRedirectionProcessorHelper.java
index 7a2d415..a6f089f 100644
--- a/src/com/android/server/telecom/callredirection/CallRedirectionProcessorHelper.java
+++ b/src/com/android/server/telecom/callredirection/CallRedirectionProcessorHelper.java
@@ -143,15 +143,25 @@
         return PhoneNumberUtils.extractPostDialPortion(handle.getSchemeSpecificPart());
     }
 
-    protected Uri formatNumberToE164(Uri handle) {
+    @VisibleForTesting
+    public Uri formatNumberToE164(Uri handle) {
         String number = handle.getSchemeSpecificPart();
 
         // Format number to E164
         TelephonyManager tm = (TelephonyManager) mContext.getSystemService(
                 Context.TELEPHONY_SERVICE);
         Log.i(this, "formatNumberToE164, original number: " + Log.pii(number));
-        number = PhoneNumberUtils.formatNumberToE164(number, tm.getNetworkCountryIso());
-        Log.i(this, "formatNumberToE164, formatted E164 number: " + Log.pii(number));
+        String networkCountryIso;
+        try {
+            number = PhoneNumberUtils.formatNumberToE164(number, tm.getNetworkCountryIso());
+            Log.i(this, "formatNumberToE164, formatted E164 number: " + Log.pii(number));
+        } catch (UnsupportedOperationException ignored) {
+            // Note: Yes, this could default back to the system locale, however redirection when
+            // there is no telephony is NOT expected.  Hence in reality we shouldn't really hit this
+            // code path in practice; this is a "just in case" to ensure we don't crash.
+            Log.w(this, "formatNumberToE164: no telephony; use original format");
+            number = null;
+        }
         // if there is a problem with parsing the phone number, formatNumberToE164 will return null;
         // and should just use the original number in that case.
         if (number == null) {
diff --git a/src/com/android/server/telecom/components/AppUninstallBroadcastReceiver.java b/src/com/android/server/telecom/components/AppUninstallBroadcastReceiver.java
index b7e5880..b89fe94 100644
--- a/src/com/android/server/telecom/components/AppUninstallBroadcastReceiver.java
+++ b/src/com/android/server/telecom/components/AppUninstallBroadcastReceiver.java
@@ -61,9 +61,14 @@
                 return;
             }
 
-            String packageName = uri.getSchemeSpecificPart();
-            handlePackageRemoved(context, packageName);
-            handleUninstallOfCallScreeningService(context, packageName);
+            final PendingResult result = goAsync();
+            // Move computation off into a separate thread to prevent ANR.
+            new Thread(() -> {
+                String packageName = uri.getSchemeSpecificPart();
+                handlePackageRemoved(context, packageName);
+                handleUninstallOfCallScreeningService(context, packageName);
+                result.finish();
+            }).start();
         }
     }
 
diff --git a/src/com/android/server/telecom/components/TelecomService.java b/src/com/android/server/telecom/components/TelecomService.java
index 845f788..2d8c78e 100644
--- a/src/com/android/server/telecom/components/TelecomService.java
+++ b/src/com/android/server/telecom/components/TelecomService.java
@@ -27,6 +27,7 @@
 import android.os.ServiceManager;
 import android.os.SystemClock;
 import android.provider.BlockedNumberContract;
+import android.provider.BlockedNumbersManager;
 import android.telecom.Log;
 
 import android.telecom.CallerInfoAsyncQuery;
@@ -104,6 +105,7 @@
     static void initializeTelecomSystem(Context context,
             InternalServiceRetrieverAdapter internalServiceRetriever) {
         if (TelecomSystem.getInstance() == null) {
+            FeatureFlags featureFlags = new FeatureFlagsImpl();
             NotificationChannelManager notificationChannelManager =
                     new NotificationChannelManager();
             notificationChannelManager.createChannels(context);
@@ -223,8 +225,11 @@
                                 @Override
                                 public boolean shouldShowEmergencyCallNotification(Context
                                         context) {
-                                    return BlockedNumberContract.BlockedNumbers
-                                            .shouldShowEmergencyCallNotification(context);
+                                    return featureFlags.telecomMainlineBlockedNumbersManager()
+                                            ? context.getSystemService(BlockedNumbersManager.class)
+                                            .shouldShowEmergencyCallNotification()
+                                            : BlockedNumberContract.SystemContract
+                                                    .shouldShowEmergencyCallNotification(context);
                                 }
 
                                 @Override
@@ -234,7 +239,7 @@
                                             showNotification);
                                 }
                             },
-                            new FeatureFlagsImpl(),
+                            featureFlags,
                             new com.android.internal.telephony.flags.FeatureFlagsImpl()));
         }
     }
diff --git a/src/com/android/server/telecom/components/UserCallActivity.java b/src/com/android/server/telecom/components/UserCallActivity.java
index d7b2001..6f5dfea 100644
--- a/src/com/android/server/telecom/components/UserCallActivity.java
+++ b/src/com/android/server/telecom/components/UserCallActivity.java
@@ -18,6 +18,8 @@
 
 import com.android.server.telecom.CallIntentProcessor;
 import com.android.server.telecom.TelecomSystem;
+import com.android.server.telecom.flags.FeatureFlags;
+import com.android.server.telecom.flags.FeatureFlagsImpl;
 
 import android.app.Activity;
 import android.content.Context;
@@ -64,8 +66,13 @@
             // See OutgoingCallBroadcaster in services/Telephony for more.
             Intent intent = getIntent();
             verifyCallAction(intent);
-            final UserManager userManager = (UserManager) getSystemService(Context.USER_SERVICE);
-            final UserHandle userHandle = new UserHandle(userManager.getProcessUserId());
+            FeatureFlags featureFlags = getTelecomSystem() != null
+                    ? getTelecomSystem().getFeatureFlags()
+                    : new FeatureFlagsImpl();
+            final UserManager userManager = getSystemService(UserManager.class);
+            final UserHandle userHandle = new UserHandle(
+                    featureFlags.telecomResolveHiddenDependencies()
+                            ? UserHandle.myUserId() : userManager.getProcessUserId());
             // Once control flow has passed to this activity, it is no longer guaranteed that we can
             // accurately determine whether the calling package has the CALL_PHONE runtime permission.
             // At this point in time we trust that the ActivityManager has already performed this
@@ -73,9 +80,9 @@
             // Create a new instance of intent to avoid modifying the
             // ActivityThread.ActivityClientRecord#intent directly.
             // Modifying directly may be a potential risk when relaunching this activity.
-            new UserCallIntentProcessor(this, userHandle).processIntent(new Intent(intent),
-                    getCallingPackage(), false, true /* hasCallAppOp*/,
-                    false /* isLocalInvocation */);
+            new UserCallIntentProcessor(this, userHandle, featureFlags)
+                    .processIntent(new Intent(intent), getCallingPackage(), false,
+                            true /* hasCallAppOp*/, false /* isLocalInvocation */);
         } finally {
             Log.endSession();
             wakelock.release();
diff --git a/src/com/android/server/telecom/components/UserCallIntentProcessor.java b/src/com/android/server/telecom/components/UserCallIntentProcessor.java
index 41232c2..c3dc963 100755
--- a/src/com/android/server/telecom/components/UserCallIntentProcessor.java
+++ b/src/com/android/server/telecom/components/UserCallIntentProcessor.java
@@ -34,6 +34,7 @@
 import com.android.server.telecom.TelecomSystem;
 import com.android.server.telecom.TelephonyUtil;
 import com.android.server.telecom.UserUtil;
+import com.android.server.telecom.flags.FeatureFlags;
 
 // TODO: Needed for move to system service: import com.android.internal.R;
 
@@ -58,10 +59,13 @@
 
     private final Context mContext;
     private final UserHandle mUserHandle;
+    private FeatureFlags mFeatureFlags;
 
-    public UserCallIntentProcessor(Context context, UserHandle userHandle) {
+    public UserCallIntentProcessor(Context context, UserHandle userHandle,
+            FeatureFlags featureFlags) {
         mContext = context;
         mUserHandle = userHandle;
+        mFeatureFlags = featureFlags;
     }
 
     /**
@@ -105,8 +109,8 @@
             handle = Uri.fromParts(PhoneAccount.SCHEME_SIP, uriString, null);
         }
 
-       if (UserUtil.hasOutgoingCallsUserRestriction(mContext, mUserHandle,
-               handle, isSelfManaged, UserCallIntentProcessor.class.getCanonicalName())) {
+       if (UserUtil.hasOutgoingCallsUserRestriction(mContext, mUserHandle, handle, isSelfManaged,
+               UserCallIntentProcessor.class.getCanonicalName(), mFeatureFlags)) {
            return;
        }
 
diff --git a/src/com/android/server/telecom/settings/BlockNumberTaskFragment.java b/src/com/android/server/telecom/settings/BlockNumberTaskFragment.java
index d96b3e1..6ca4d2a 100644
--- a/src/com/android/server/telecom/settings/BlockNumberTaskFragment.java
+++ b/src/com/android/server/telecom/settings/BlockNumberTaskFragment.java
@@ -23,7 +23,6 @@
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.provider.BlockedNumberContract;
-import com.android.server.telecom.R;
 
 /**
  * Retained fragment that runs an async task to add a blocked number.
diff --git a/src/com/android/server/telecom/settings/BlockedNumbersActivity.java b/src/com/android/server/telecom/settings/BlockedNumbersActivity.java
index 819b270..edc8da6 100644
--- a/src/com/android/server/telecom/settings/BlockedNumbersActivity.java
+++ b/src/com/android/server/telecom/settings/BlockedNumbersActivity.java
@@ -34,6 +34,7 @@
 import android.database.Cursor;
 import android.os.Bundle;
 import android.provider.BlockedNumberContract;
+import android.provider.BlockedNumbersManager;
 import android.telephony.PhoneNumberFormattingTextWatcher;
 import android.telephony.PhoneNumberUtils;
 import android.telephony.TelephonyManager;
@@ -53,7 +54,10 @@
 import android.widget.TextView;
 import android.widget.Toast;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.server.telecom.R;
+import com.android.server.telecom.flags.FeatureFlags;
+import com.android.server.telecom.flags.FeatureFlagsImpl;
 
 
 /**
@@ -75,8 +79,10 @@
             BlockedNumberContract.BlockedNumbers.COLUMN_ORIGINAL_NUMBER + " NOTNULL) AND (" +
             BlockedNumberContract.BlockedNumbers.COLUMN_ORIGINAL_NUMBER + " != '' ))";
 
+    private BlockedNumbersManager mBlockedNumbersManager;
     private BlockNumberTaskFragment mBlockNumberTaskFragment;
     private BlockedNumbersAdapter mAdapter;
+    private FeatureFlags mFeatureFlags;
     private TextView mAddButton;
     private ProgressBar mProgressBar;
     private RelativeLayout mButterBar;
@@ -114,6 +120,7 @@
             return;
         }
 
+        mFeatureFlags = new FeatureFlagsImpl();
         FragmentManager fm = getFragmentManager();
         mBlockNumberTaskFragment =
                 (BlockNumberTaskFragment) fm.findFragmentByTag(TAG_BLOCK_NUMBER_TASK_FRAGMENT);
@@ -155,12 +162,15 @@
             }
         };
         IntentFilter blockStatusIntentFilter = new IntentFilter(
-                BlockedNumberContract.BlockedNumbers.ACTION_BLOCK_SUPPRESSION_STATE_CHANGED);
+                BlockedNumbersManager.ACTION_BLOCK_SUPPRESSION_STATE_CHANGED);
         blockStatusIntentFilter.setPriority(IntentFilter.SYSTEM_HIGH_PRIORITY);
         registerReceiver(mBlockingStatusReceiver, blockStatusIntentFilter,
                 Context.RECEIVER_EXPORTED);
 
         getLoaderManager().initLoader(0, null, this);
+        mBlockedNumbersManager = mFeatureFlags.telecomMainlineBlockedNumbersManager()
+                ? getSystemService(BlockedNumbersManager.class)
+                : null;
     }
 
     @Override
@@ -183,8 +193,10 @@
     }
 
     private void updateButterBar() {
-        if (BlockedNumberContract.BlockedNumbers
-                .getBlockSuppressionStatus(this).getIsSuppressed()) {
+        boolean isBlockSuppressionEnabled = mBlockedNumbersManager != null
+                ? mBlockedNumbersManager.getBlockSuppressionStatus().getIsSuppressed()
+                : BlockedNumberContract.SystemContract.getBlockSuppressionStatus(this).isSuppressed;
+        if (isBlockSuppressionEnabled) {
             mButterBar.setVisibility(View.VISIBLE);
         } else {
             mButterBar.setVisibility(View.GONE);
@@ -239,7 +251,11 @@
         if (view == mAddButton) {
             showAddBlockedNumberDialog();
         } else if (view == mReEnableButton) {
-            BlockedNumberContract.BlockedNumbers.endBlockSuppression(this);
+            if (mBlockedNumbersManager != null) {
+                mBlockedNumbersManager.endBlockSuppression();
+            } else {
+                BlockedNumberContract.SystemContract.endBlockSuppression(this);
+            }
             mButterBar.setVisibility(View.GONE);
         }
     }
@@ -302,12 +318,13 @@
         }
     }
 
-    private boolean isEmergencyNumber(Context context, String number) {
+    @VisibleForTesting
+    public static boolean isEmergencyNumber(Context context, String number) {
         try {
             TelephonyManager tm = (TelephonyManager) context.getSystemService(
                     Context.TELEPHONY_SERVICE);
             return tm.isEmergencyNumber(number);
-        } catch (IllegalStateException ise) {
+        } catch (UnsupportedOperationException | IllegalStateException ignored) {
             return false;
         }
     }
diff --git a/src/com/android/server/telecom/settings/BlockedNumbersUtil.java b/src/com/android/server/telecom/settings/BlockedNumbersUtil.java
index e0fe81e..3e1da17 100644
--- a/src/com/android/server/telecom/settings/BlockedNumbersUtil.java
+++ b/src/com/android/server/telecom/settings/BlockedNumbersUtil.java
@@ -23,7 +23,8 @@
 import android.content.Intent;
 import android.os.PersistableBundle;
 import android.os.UserHandle;
-import android.provider.BlockedNumberContract.BlockedNumbers;
+import android.provider.BlockedNumberContract;
+import android.provider.BlockedNumbersManager;
 import android.telephony.CarrierConfigManager;
 import android.telephony.PhoneNumberUtils;
 import android.text.BidiFormatter;
@@ -34,6 +35,7 @@
 
 import com.android.server.telecom.R;
 import com.android.server.telecom.SystemSettingsUtil;
+import com.android.server.telecom.flags.FeatureFlags;
 import com.android.server.telecom.ui.NotificationChannelManager;
 
 import java.util.Locale;
@@ -148,8 +150,11 @@
      * @return If {@code true} means the key enabled in the SharedPreferences,
      *            {@code false} otherwise.
      */
-    public static boolean getBlockedNumberSetting(Context context, String key) {
-        return BlockedNumbers.getBlockedNumberSetting(context, key);
+    public static boolean getBlockedNumberSetting(Context context, String key,
+            FeatureFlags featureFlags) {
+        return featureFlags.telecomMainlineBlockedNumbersManager()
+                ? context.getSystemService(BlockedNumbersManager.class).getBlockedNumberSetting(key)
+                : BlockedNumberContract.SystemContract.getEnhancedBlockSetting(context, key);
     }
 
     /**
@@ -159,7 +164,13 @@
      * @param key preference key of SharedPreferences.
      * @param value the register value to the SharedPreferences.
      */
-    public static void setBlockedNumberSetting(Context context, String key, boolean value) {
-        BlockedNumbers.setBlockedNumberSetting(context, key, value);
+    public static void setBlockedNumberSetting(Context context, String key, boolean value,
+            FeatureFlags featureFlags) {
+        if (featureFlags.telecomMainlineBlockedNumbersManager()) {
+            context.getSystemService(BlockedNumbersManager.class).setBlockedNumberSetting(key,
+                    value);
+        } else {
+            BlockedNumberContract.SystemContract.setEnhancedBlockSetting(context, key, value);
+        }
     }
 }
diff --git a/src/com/android/server/telecom/settings/CallBlockDisabledActivity.java b/src/com/android/server/telecom/settings/CallBlockDisabledActivity.java
index 35b7f70..cc66a2d 100644
--- a/src/com/android/server/telecom/settings/CallBlockDisabledActivity.java
+++ b/src/com/android/server/telecom/settings/CallBlockDisabledActivity.java
@@ -20,19 +20,23 @@
 import android.app.AlertDialog;
 import android.content.DialogInterface;
 import android.os.Bundle;
-import android.provider.BlockedNumberContract;
+import android.provider.BlockedNumbersManager;
 
 import com.android.server.telecom.R;
+import com.android.server.telecom.flags.FeatureFlags;
+import com.android.server.telecom.flags.FeatureFlagsImpl;
 
 /**
  * Shows a dialog when user taps an notification in notification tray.
  */
 public class CallBlockDisabledActivity extends Activity {
     private AlertDialog mDialog;
+    private FeatureFlags mFeatureFlags;
 
     @Override
     protected void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
+        mFeatureFlags = new FeatureFlagsImpl();
         showCallBlockingOffDialog();
     }
 
@@ -60,9 +64,9 @@
                     public void onClick(DialogInterface dialog, int which) {
                         BlockedNumbersUtil.setBlockedNumberSetting(
                                 CallBlockDisabledActivity.this,
-                                BlockedNumberContract.BlockedNumbers
+                                BlockedNumbersManager
                                         .ENHANCED_SETTING_KEY_SHOW_EMERGENCY_CALL_NOTIFICATION,
-                                false);
+                                false, mFeatureFlags);
                         BlockedNumbersUtil.updateEmergencyCallNotification(
                                 CallBlockDisabledActivity.this, false);
                         finish();
diff --git a/src/com/android/server/telecom/settings/EnhancedCallBlockingFragment.java b/src/com/android/server/telecom/settings/EnhancedCallBlockingFragment.java
index 7ea8926..b54e273 100644
--- a/src/com/android/server/telecom/settings/EnhancedCallBlockingFragment.java
+++ b/src/com/android/server/telecom/settings/EnhancedCallBlockingFragment.java
@@ -23,7 +23,7 @@
 import android.preference.PreferenceFragment;
 import android.preference.PreferenceScreen;
 import android.preference.SwitchPreference;
-import android.provider.BlockedNumberContract.BlockedNumbers;
+import android.provider.BlockedNumbersManager;
 import android.telephony.CarrierConfigManager;
 import android.telephony.SubscriptionManager;
 import android.telecom.Log;
@@ -32,6 +32,8 @@
 import android.view.ViewGroup;
 
 import com.android.server.telecom.R;
+import com.android.server.telecom.flags.FeatureFlags;
+import com.android.server.telecom.flags.FeatureFlagsImpl;
 
 public class EnhancedCallBlockingFragment extends PreferenceFragment
         implements Preference.OnPreferenceChangeListener {
@@ -45,22 +47,25 @@
             "block_unavailable_calls_setting";
     private boolean mIsCombiningRestrictedAndUnknownOption = false;
     private boolean mIsCombiningUnavailableAndUnknownOption = false;
+    private FeatureFlags mFeatureFlags;
 
     @Override
     public void onCreate(Bundle savedInstanceState) {
         super.onCreate(savedInstanceState);
         addPreferencesFromResource(R.xml.enhanced_call_blocking_settings);
+        mFeatureFlags = new FeatureFlagsImpl();
 
         maybeConfigureCallBlockingOptions();
 
-        setOnPreferenceChangeListener(BlockedNumbers.ENHANCED_SETTING_KEY_BLOCK_UNREGISTERED);
-        setOnPreferenceChangeListener(BlockedNumbers.ENHANCED_SETTING_KEY_BLOCK_PRIVATE);
-        setOnPreferenceChangeListener(BlockedNumbers.ENHANCED_SETTING_KEY_BLOCK_PAYPHONE);
-        setOnPreferenceChangeListener(BlockedNumbers.ENHANCED_SETTING_KEY_BLOCK_UNKNOWN);
-        setOnPreferenceChangeListener(BlockedNumbers.ENHANCED_SETTING_KEY_BLOCK_UNAVAILABLE);
+        setOnPreferenceChangeListener(
+                BlockedNumbersManager.ENHANCED_SETTING_KEY_BLOCK_UNREGISTERED);
+        setOnPreferenceChangeListener(BlockedNumbersManager.ENHANCED_SETTING_KEY_BLOCK_PRIVATE);
+        setOnPreferenceChangeListener(BlockedNumbersManager.ENHANCED_SETTING_KEY_BLOCK_PAYPHONE);
+        setOnPreferenceChangeListener(BlockedNumbersManager.ENHANCED_SETTING_KEY_BLOCK_UNKNOWN);
+        setOnPreferenceChangeListener(BlockedNumbersManager.ENHANCED_SETTING_KEY_BLOCK_UNAVAILABLE);
         if (!showPayPhoneBlocking()) {
             Preference payPhoneOption = getPreferenceScreen()
-                    .findPreference(BlockedNumbers.ENHANCED_SETTING_KEY_BLOCK_PAYPHONE);
+                    .findPreference(BlockedNumbersManager.ENHANCED_SETTING_KEY_BLOCK_PAYPHONE);
             getPreferenceScreen().removePreference(payPhoneOption);
         }
     }
@@ -122,13 +127,13 @@
     public void onResume() {
         super.onResume();
 
-        updateEnhancedBlockPref(BlockedNumbers.ENHANCED_SETTING_KEY_BLOCK_UNREGISTERED);
-        updateEnhancedBlockPref(BlockedNumbers.ENHANCED_SETTING_KEY_BLOCK_PRIVATE);
+        updateEnhancedBlockPref(BlockedNumbersManager.ENHANCED_SETTING_KEY_BLOCK_UNREGISTERED);
+        updateEnhancedBlockPref(BlockedNumbersManager.ENHANCED_SETTING_KEY_BLOCK_PRIVATE);
         if (showPayPhoneBlocking()) {
-            updateEnhancedBlockPref(BlockedNumbers.ENHANCED_SETTING_KEY_BLOCK_PAYPHONE);
+            updateEnhancedBlockPref(BlockedNumbersManager.ENHANCED_SETTING_KEY_BLOCK_PAYPHONE);
         }
-        updateEnhancedBlockPref(BlockedNumbers.ENHANCED_SETTING_KEY_BLOCK_UNKNOWN);
-        updateEnhancedBlockPref(BlockedNumbers.ENHANCED_SETTING_KEY_BLOCK_UNAVAILABLE);
+        updateEnhancedBlockPref(BlockedNumbersManager.ENHANCED_SETTING_KEY_BLOCK_UNKNOWN);
+        updateEnhancedBlockPref(BlockedNumbersManager.ENHANCED_SETTING_KEY_BLOCK_UNAVAILABLE);
     }
 
     /**
@@ -137,7 +142,8 @@
     private void updateEnhancedBlockPref(String key) {
         SwitchPreference pref = (SwitchPreference) findPreference(key);
         if (pref != null) {
-            pref.setChecked(BlockedNumbersUtil.getBlockedNumberSetting(getActivity(), key));
+            pref.setChecked(BlockedNumbersUtil.getBlockedNumberSetting(
+                    getActivity(), key, mFeatureFlags));
         }
     }
 
@@ -148,18 +154,18 @@
                 Log.i(this, "onPreferenceChange: changing %s and %s to %b",
                         preference.getKey(), BLOCK_RESTRICTED_NUMBERS_KEY, (boolean) objValue);
                 BlockedNumbersUtil.setBlockedNumberSetting(getActivity(),
-                        BLOCK_RESTRICTED_NUMBERS_KEY, (boolean) objValue);
+                        BLOCK_RESTRICTED_NUMBERS_KEY, (boolean) objValue, mFeatureFlags);
             }
 
             if (mIsCombiningUnavailableAndUnknownOption) {
                 Log.i(this, "onPreferenceChange: changing %s and %s to %b",
                         preference.getKey(), BLOCK_UNAVAILABLE_NUMBERS_KEY, (boolean) objValue);
                 BlockedNumbersUtil.setBlockedNumberSetting(getActivity(),
-                        BLOCK_UNAVAILABLE_NUMBERS_KEY, (boolean) objValue);
+                        BLOCK_UNAVAILABLE_NUMBERS_KEY, (boolean) objValue, mFeatureFlags);
             }
         }
         BlockedNumbersUtil.setBlockedNumberSetting(getActivity(), preference.getKey(),
-                (boolean) objValue);
+                (boolean) objValue, mFeatureFlags);
         return true;
     }
 
diff --git a/src/com/android/server/telecom/ui/DisconnectedCallNotifier.java b/src/com/android/server/telecom/ui/DisconnectedCallNotifier.java
index 1604285..04228c1 100644
--- a/src/com/android/server/telecom/ui/DisconnectedCallNotifier.java
+++ b/src/com/android/server/telecom/ui/DisconnectedCallNotifier.java
@@ -41,6 +41,7 @@
 import android.text.TextDirectionHeuristics;
 import android.text.TextUtils;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.server.telecom.Call;
 import com.android.server.telecom.CallState;
 import com.android.server.telecom.CallsManager;
@@ -285,12 +286,18 @@
      *      network location.  If the network location does not exist, fall back to the locale
      *      setting.
      */
-    private String getCurrentCountryIso(Context context) {
+    @VisibleForTesting
+    public String getCurrentCountryIso(Context context) {
         // Without framework function calls, this seems to be the most accurate location service
         // we can rely on.
         final TelephonyManager telephonyManager =
                 (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
-        String countryIso = telephonyManager.getNetworkCountryIso().toUpperCase();
+        String countryIso;
+        try {
+            countryIso = telephonyManager.getNetworkCountryIso().toUpperCase();
+        } catch (UnsupportedOperationException ignored) {
+            countryIso = null;
+        }
 
         if (countryIso == null) {
             countryIso = Locale.getDefault().getCountry();
diff --git a/src/com/android/server/telecom/ui/MissedCallNotifierImpl.java b/src/com/android/server/telecom/ui/MissedCallNotifierImpl.java
index 25ce0ca..220b44e 100644
--- a/src/com/android/server/telecom/ui/MissedCallNotifierImpl.java
+++ b/src/com/android/server/telecom/ui/MissedCallNotifierImpl.java
@@ -59,6 +59,7 @@
 import android.util.ArrayMap;
 import android.util.ArraySet;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.server.telecom.CallerInfoLookupHelper;
 import com.android.server.telecom.CallsManagerListenerBase;
 import com.android.server.telecom.Constants;
@@ -506,12 +507,18 @@
      *      network location.  If the network location does not exist, fall back to the locale
      *      setting.
      */
-    private String getCurrentCountryIso(Context context) {
+    @VisibleForTesting
+    public String getCurrentCountryIso(Context context) {
         // Without framework function calls, this seems to be the most accurate location service
         // we can rely on.
         final TelephonyManager telephonyManager =
                 (TelephonyManager) context.getSystemService(Context.TELEPHONY_SERVICE);
-        String countryIso = telephonyManager.getNetworkCountryIso().toUpperCase();
+        String countryIso;
+        try {
+            countryIso = telephonyManager.getNetworkCountryIso().toUpperCase();
+        } catch (UnsupportedOperationException ignored) {
+            countryIso = null;
+        }
 
         if (countryIso == null) {
             countryIso = Locale.getDefault().getCountry();
diff --git a/src/com/android/server/telecom/ui/ToastFactory.java b/src/com/android/server/telecom/ui/ToastFactory.java
index 75b69da..1561f0b 100644
--- a/src/com/android/server/telecom/ui/ToastFactory.java
+++ b/src/com/android/server/telecom/ui/ToastFactory.java
@@ -21,6 +21,6 @@
 import android.widget.Toast;
 
 public interface ToastFactory {
-    Toast makeText(Context context, @StringRes int resId, int duration);
-    Toast makeText(Context context, CharSequence text, int duration);
+    void makeText(Context context, @StringRes int resId, int duration);
+    void makeText(Context context, CharSequence text, int duration);
 }
diff --git a/src/com/android/server/telecom/voip/CallEventCallbackAckTransaction.java b/src/com/android/server/telecom/voip/CallEventCallbackAckTransaction.java
index 93d9836..9e140a7 100644
--- a/src/com/android/server/telecom/voip/CallEventCallbackAckTransaction.java
+++ b/src/com/android/server/telecom/voip/CallEventCallbackAckTransaction.java
@@ -125,7 +125,7 @@
 
         try {
             // wait for the client to ack that CallEventCallback
-            boolean success = latch.await(VoipCallTransaction.TIMEOUT_LIMIT, TimeUnit.MILLISECONDS);
+            boolean success = latch.await(mTransactionTimeoutMs, TimeUnit.MILLISECONDS);
             if (!success) {
                 // client send onError and failed to complete transaction
                 Log.i(TAG, String.format("CallEventCallbackAckTransaction:"
diff --git a/src/com/android/server/telecom/voip/ParallelTransaction.java b/src/com/android/server/telecom/voip/ParallelTransaction.java
index 621892a..79a940b 100644
--- a/src/com/android/server/telecom/voip/ParallelTransaction.java
+++ b/src/com/android/server/telecom/voip/ParallelTransaction.java
@@ -33,78 +33,62 @@
     }
 
     @Override
-    public void start() {
-        if (mStats != null) mStats.markStarted();
-        // post timeout work
-        CompletableFuture<Void> future = new CompletableFuture<>();
-        mHandler.postDelayed(() -> future.complete(null), TIMEOUT_LIMIT);
-        future.thenApplyAsync((x) -> {
-            if (mCompleted.getAndSet(true)) {
-                return null;
-            }
-            if (mCompleteListener != null) {
-                mCompleteListener.onTransactionTimeout(mTransactionName);
-            }
-            timeout();
-            return null;
-        }, new LoggedHandlerExecutor(mHandler, mTransactionName + "@" + hashCode()
-                + ".s", mLock));
+    public void processTransactions() {
+        if (mSubTransactions == null || mSubTransactions.isEmpty()) {
+            scheduleTransaction();
+            return;
+        }
+        TransactionManager.TransactionCompleteListener subTransactionListener =
+                new TransactionManager.TransactionCompleteListener() {
+                    private final AtomicInteger mCount = new AtomicInteger(mSubTransactions.size());
 
-        if (mSubTransactions != null && mSubTransactions.size() > 0) {
-            TransactionManager.TransactionCompleteListener subTransactionListener =
-                    new TransactionManager.TransactionCompleteListener() {
-                        private final AtomicInteger mCount = new AtomicInteger(mSubTransactions.size());
-
-                        @Override
-                        public void onTransactionCompleted(VoipCallTransactionResult result,
-                                String transactionName) {
-                            if (result.getResult() != VoipCallTransactionResult.RESULT_SUCCEED) {
-                                CompletableFuture.completedFuture(null).thenApplyAsync(
-                                        (x) -> {
-                                            VoipCallTransactionResult mainResult =
-                                                    new VoipCallTransactionResult(
-                                                            VoipCallTransactionResult.RESULT_FAILED,
-                                                            String.format(
-                                                                    "sub transaction %s failed",
-                                                                    transactionName));
-                                            mCompleteListener.onTransactionCompleted(mainResult,
-                                                    mTransactionName);
-                                            finish(mainResult);
-                                            return null;
-                                        }, new LoggedHandlerExecutor(mHandler,
-                                                mTransactionName + "@" + hashCode()
-                                                        + ".oTC", mLock));
-                            } else {
-                                if (mCount.decrementAndGet() == 0) {
-                                    scheduleTransaction();
-                                }
-                            }
-                        }
-
-                        @Override
-                        public void onTransactionTimeout(String transactionName) {
+                    @Override
+                    public void onTransactionCompleted(VoipCallTransactionResult result,
+                            String transactionName) {
+                        if (result.getResult() != VoipCallTransactionResult.RESULT_SUCCEED) {
                             CompletableFuture.completedFuture(null).thenApplyAsync(
                                     (x) -> {
                                         VoipCallTransactionResult mainResult =
                                                 new VoipCallTransactionResult(
-                                                VoipCallTransactionResult.RESULT_FAILED,
-                                                String.format("sub transaction %s timed out",
-                                                        transactionName));
+                                                        VoipCallTransactionResult.RESULT_FAILED,
+                                                        String.format(
+                                                                "sub transaction %s failed",
+                                                                transactionName));
+                                        finish(mainResult);
                                         mCompleteListener.onTransactionCompleted(mainResult,
                                                 mTransactionName);
-                                        finish(mainResult);
                                         return null;
                                     }, new LoggedHandlerExecutor(mHandler,
                                             mTransactionName + "@" + hashCode()
-                                                    + ".oTT", mLock));
+                                                    + ".oTC", mLock));
+                        } else {
+                            if (mCount.decrementAndGet() == 0) {
+                                scheduleTransaction();
+                            }
                         }
-                    };
-            for (VoipCallTransaction transaction : mSubTransactions) {
-                transaction.setCompleteListener(subTransactionListener);
-                transaction.start();
-            }
-        } else {
-            scheduleTransaction();
+                    }
+
+                    @Override
+                    public void onTransactionTimeout(String transactionName) {
+                        CompletableFuture.completedFuture(null).thenApplyAsync(
+                                (x) -> {
+                                    VoipCallTransactionResult mainResult =
+                                            new VoipCallTransactionResult(
+                                            VoipCallTransactionResult.RESULT_FAILED,
+                                            String.format("sub transaction %s timed out",
+                                                    transactionName));
+                                    finish(mainResult);
+                                    mCompleteListener.onTransactionCompleted(mainResult,
+                                            mTransactionName);
+                                    return null;
+                                }, new LoggedHandlerExecutor(mHandler,
+                                        mTransactionName + "@" + hashCode()
+                                                + ".oTT", mLock));
+                    }
+                };
+        for (VoipCallTransaction transaction : mSubTransactions) {
+            transaction.setCompleteListener(subTransactionListener);
+            transaction.start();
         }
     }
 }
diff --git a/src/com/android/server/telecom/voip/SerialTransaction.java b/src/com/android/server/telecom/voip/SerialTransaction.java
index 7d5a178..55d2065 100644
--- a/src/com/android/server/telecom/voip/SerialTransaction.java
+++ b/src/com/android/server/telecom/voip/SerialTransaction.java
@@ -37,86 +37,71 @@
     }
 
     @Override
-    public void start() {
-        if (mStats != null) mStats.markStarted();
-        // post timeout work
-        CompletableFuture<Void> future = new CompletableFuture<>();
-        mHandler.postDelayed(() -> future.complete(null), TIMEOUT_LIMIT);
-        future.thenApplyAsync((x) -> {
-            if (mCompleted.getAndSet(true)) {
-                return null;
-            }
-            if (mCompleteListener != null) {
-                mCompleteListener.onTransactionTimeout(mTransactionName);
-            }
-            timeout();
-            return null;
-        }, new LoggedHandlerExecutor(mHandler, mTransactionName + "@" + hashCode()
-                + ".s", mLock));
+    public void processTransactions() {
+        if (mSubTransactions == null || mSubTransactions.isEmpty()) {
+            scheduleTransaction();
+            return;
+        }
+        TransactionManager.TransactionCompleteListener subTransactionListener =
+                new TransactionManager.TransactionCompleteListener() {
+                    private final AtomicInteger mTransactionIndex = new AtomicInteger(0);
 
-        if (mSubTransactions != null && mSubTransactions.size() > 0) {
-            TransactionManager.TransactionCompleteListener subTransactionListener =
-                    new TransactionManager.TransactionCompleteListener() {
-                        private final AtomicInteger mTransactionIndex = new AtomicInteger(0);
-
-                        @Override
-                        public void onTransactionCompleted(VoipCallTransactionResult result,
-                                String transactionName) {
-                            if (result.getResult() != VoipCallTransactionResult.RESULT_SUCCEED) {
-                                handleTransactionFailure();
-                                CompletableFuture.completedFuture(null).thenApplyAsync(
-                                        (x) -> {
-                                            VoipCallTransactionResult mainResult =
-                                                    new VoipCallTransactionResult(
-                                                            VoipCallTransactionResult.RESULT_FAILED,
-                                                            String.format(
-                                                                    "sub transaction %s failed",
-                                                                    transactionName));
-                                            mCompleteListener.onTransactionCompleted(mainResult,
-                                                    mTransactionName);
-                                            finish(mainResult);
-                                            return null;
-                                        }, new LoggedHandlerExecutor(mHandler,
-                                                mTransactionName + "@" + hashCode()
-                                                        + ".oTC", mLock));
-                            } else {
-                                int currTransactionIndex = mTransactionIndex.incrementAndGet();
-                                if (currTransactionIndex < mSubTransactions.size()) {
-                                    VoipCallTransaction transaction = mSubTransactions.get(
-                                            currTransactionIndex);
-                                    transaction.setCompleteListener(this);
-                                    transaction.start();
-                                } else {
-                                    scheduleTransaction();
-                                }
-                            }
-                        }
-
-                        @Override
-                        public void onTransactionTimeout(String transactionName) {
+                    @Override
+                    public void onTransactionCompleted(VoipCallTransactionResult result,
+                            String transactionName) {
+                        if (result.getResult() != VoipCallTransactionResult.RESULT_SUCCEED) {
                             handleTransactionFailure();
                             CompletableFuture.completedFuture(null).thenApplyAsync(
                                     (x) -> {
                                         VoipCallTransactionResult mainResult =
                                                 new VoipCallTransactionResult(
-                                                VoipCallTransactionResult.RESULT_FAILED,
-                                                String.format("sub transaction %s timed out",
-                                                        transactionName));
+                                                        VoipCallTransactionResult.RESULT_FAILED,
+                                                        String.format(
+                                                                "sub transaction %s failed",
+                                                                transactionName));
+                                        finish(mainResult);
                                         mCompleteListener.onTransactionCompleted(mainResult,
                                                 mTransactionName);
-                                        finish(mainResult);
                                         return null;
                                     }, new LoggedHandlerExecutor(mHandler,
                                             mTransactionName + "@" + hashCode()
-                                                    + ".oTT", mLock));
+                                                    + ".oTC", mLock));
+                        } else {
+                            int currTransactionIndex = mTransactionIndex.incrementAndGet();
+                            if (currTransactionIndex < mSubTransactions.size()) {
+                                VoipCallTransaction transaction = mSubTransactions.get(
+                                        currTransactionIndex);
+                                transaction.setCompleteListener(this);
+                                transaction.start();
+                            } else {
+                                scheduleTransaction();
+                            }
                         }
-                    };
-            VoipCallTransaction transaction = mSubTransactions.get(0);
-            transaction.setCompleteListener(subTransactionListener);
-            transaction.start();
-        } else {
-            scheduleTransaction();
-        }
+                    }
+
+                    @Override
+                    public void onTransactionTimeout(String transactionName) {
+                        handleTransactionFailure();
+                        CompletableFuture.completedFuture(null).thenApplyAsync(
+                                (x) -> {
+                                    VoipCallTransactionResult mainResult =
+                                            new VoipCallTransactionResult(
+                                            VoipCallTransactionResult.RESULT_FAILED,
+                                            String.format("sub transaction %s timed out",
+                                                    transactionName));
+                                    finish(mainResult);
+                                    mCompleteListener.onTransactionCompleted(mainResult,
+                                            mTransactionName);
+                                    return null;
+                                }, new LoggedHandlerExecutor(mHandler,
+                                        mTransactionName + "@" + hashCode()
+                                                + ".oTT", mLock));
+                    }
+                };
+        VoipCallTransaction transaction = mSubTransactions.get(0);
+        transaction.setCompleteListener(subTransactionListener);
+        transaction.start();
+
     }
 
     public void handleTransactionFailure() {}
diff --git a/src/com/android/server/telecom/voip/VerifyCallStateChangeTransaction.java b/src/com/android/server/telecom/voip/VerifyCallStateChangeTransaction.java
index b17dedd..5de4b1d 100644
--- a/src/com/android/server/telecom/voip/VerifyCallStateChangeTransaction.java
+++ b/src/com/android/server/telecom/voip/VerifyCallStateChangeTransaction.java
@@ -18,14 +18,12 @@
 
 import com.android.internal.annotations.VisibleForTesting;
 import com.android.server.telecom.Call;
-import com.android.server.telecom.CallsManager;
+import com.android.server.telecom.TelecomSystem;
 
-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
@@ -35,37 +33,30 @@
  */
 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 static final long CALL_STATE_TIMEOUT_MILLISECONDS = 2000L;
     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() {
+    private final 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);
+                mTransactionResult.complete(new VoipCallTransactionResult(
+                        VoipCallTransactionResult.RESULT_SUCCEED, TAG));
             }
             // 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;
+    public VerifyCallStateChangeTransaction(TelecomSystem.SyncRoot lock,  Call call,
+            int targetCallState) {
+        super(lock, CALL_STATE_TIMEOUT_MILLISECONDS);
         mCall = call;
         mTargetCallState = targetCallState;
-        mShouldDisconnectUponFailure = shouldDisconnectUponFailure;
     }
 
     @Override
@@ -73,68 +64,23 @@
         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));
+            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();
-
+        mCall.addCallStateListener(mCallStateListenerImpl);
         return mTransactionResult;
     }
 
+    @Override
+    public void finishTransaction() {
+        mCall.removeCallStateListener(mCallStateListenerImpl);
+    }
+
     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;
diff --git a/src/com/android/server/telecom/voip/VoipCallTransaction.java b/src/com/android/server/telecom/voip/VoipCallTransaction.java
index 3c91158..ceb8d55 100644
--- a/src/com/android/server/telecom/voip/VoipCallTransaction.java
+++ b/src/com/android/server/telecom/voip/VoipCallTransaction.java
@@ -20,6 +20,7 @@
 import android.os.HandlerThread;
 import android.telecom.Log;
 
+import com.android.internal.annotations.VisibleForTesting;
 import com.android.server.telecom.LoggedHandlerExecutor;
 import com.android.server.telecom.TelecomSystem;
 import com.android.server.telecom.flags.Flags;
@@ -34,7 +35,7 @@
 
 public class VoipCallTransaction {
     //TODO: add log events
-    protected static final long TIMEOUT_LIMIT = 5000L;
+    private static final long DEFAULT_TRANSACTION_TIMEOUT_MS = 5000L;
 
     /**
      * Tracks stats about a transaction for logging purposes.
@@ -129,58 +130,80 @@
 
     protected final AtomicBoolean mCompleted = new AtomicBoolean(false);
     protected final String mTransactionName = this.getClass().getSimpleName();
-    private HandlerThread mHandlerThread;
-    protected Handler mHandler;
+    private final HandlerThread mHandlerThread;
+    protected final Handler mHandler;
     protected TransactionManager.TransactionCompleteListener mCompleteListener;
-    protected List<VoipCallTransaction> mSubTransactions;
-    protected TelecomSystem.SyncRoot mLock;
+    protected final List<VoipCallTransaction> mSubTransactions;
+    protected final TelecomSystem.SyncRoot mLock;
+    protected final long mTransactionTimeoutMs;
     protected final Stats mStats;
 
     public VoipCallTransaction(
-            List<VoipCallTransaction> subTransactions, TelecomSystem.SyncRoot lock) {
+            List<VoipCallTransaction> subTransactions, TelecomSystem.SyncRoot lock,
+            long timeoutMs) {
         mSubTransactions = subTransactions;
         mHandlerThread = new HandlerThread(this.toString());
         mHandlerThread.start();
         mHandler = new Handler(mHandlerThread.getLooper());
         mLock = lock;
+        mTransactionTimeoutMs = timeoutMs;
         mStats = Flags.enableCallSequencing() ? new Stats() : null;
     }
 
-    public VoipCallTransaction(TelecomSystem.SyncRoot lock) {
-        this(null /** mSubTransactions */, lock);
+    public VoipCallTransaction(List<VoipCallTransaction> subTransactions,
+            TelecomSystem.SyncRoot lock) {
+        this(subTransactions, lock, DEFAULT_TRANSACTION_TIMEOUT_MS);
+    }
+    public VoipCallTransaction(TelecomSystem.SyncRoot lock, long timeoutMs) {
+        this(null /* mSubTransactions */, lock, timeoutMs);
     }
 
-    public void start() {
+    public VoipCallTransaction(TelecomSystem.SyncRoot lock) {
+        this(null /* mSubTransactions */, lock);
+    }
+
+    public final void start() {
         if (mStats != null) mStats.markStarted();
         // post timeout work
         CompletableFuture<Void> future = new CompletableFuture<>();
-        mHandler.postDelayed(() -> future.complete(null), TIMEOUT_LIMIT);
+        mHandler.postDelayed(() -> future.complete(null), mTransactionTimeoutMs);
         future.thenApplyAsync((x) -> {
-            if (mCompleted.getAndSet(true)) {
-                return null;
-            }
-            if (mCompleteListener != null) {
-                mCompleteListener.onTransactionTimeout(mTransactionName);
-            }
             timeout();
             return null;
         }, new LoggedHandlerExecutor(mHandler, mTransactionName + "@" + hashCode()
                 + ".s", mLock));
 
+        processTransactions();
+    }
+
+    /**
+     * By default, this processes this transaction. For VoipCallTransactions with sub-transactions,
+     * this implementation should be overwritten to handle also processing sub-transactions.
+     */
+    protected void processTransactions() {
         scheduleTransaction();
     }
 
-    protected void scheduleTransaction() {
+    /**
+     * This method is called when the transaction has finished either successfully or exceptionally.
+     * VoipCallTransactions that are extending this class should override this method to clean up
+     * any leftover state.
+     */
+    protected void finishTransaction() {
+
+    }
+
+    protected final void scheduleTransaction() {
         LoggedHandlerExecutor executor = new LoggedHandlerExecutor(mHandler,
                 mTransactionName + "@" + hashCode() + ".pT", mLock);
         CompletableFuture<Void> future = CompletableFuture.completedFuture(null);
         future.thenComposeAsync(this::processTransaction, executor)
                 .thenApplyAsync((Function<VoipCallTransactionResult, Void>) result -> {
                     mCompleted.set(true);
+                    finish(result);
                     if (mCompleteListener != null) {
                         mCompleteListener.onTransactionCompleted(result, mTransactionName);
                     }
-                    finish(result);
                     return null;
                     }, executor)
                 .exceptionallyAsync((throwable -> {
@@ -189,25 +212,38 @@
                 }), executor);
     }
 
-    public CompletionStage<VoipCallTransactionResult> processTransaction(Void v) {
+    protected CompletionStage<VoipCallTransactionResult> processTransaction(Void v) {
         return CompletableFuture.completedFuture(
                 new VoipCallTransactionResult(VoipCallTransactionResult.RESULT_SUCCEED, null));
     }
 
-    public void setCompleteListener(TransactionManager.TransactionCompleteListener listener) {
+    public final void setCompleteListener(TransactionManager.TransactionCompleteListener listener) {
         mCompleteListener = listener;
     }
 
-    public void timeout() {
+    @VisibleForTesting
+    public final void timeout() {
+        if (mCompleted.getAndSet(true)) {
+            return;
+        }
         finish(true, null);
+        if (mCompleteListener != null) {
+            mCompleteListener.onTransactionTimeout(mTransactionName);
+        }
     }
 
-    public void finish(VoipCallTransactionResult result) {
+    @VisibleForTesting
+    public final Handler getHandler() {
+        return mHandler;
+    }
+
+    public final void finish(VoipCallTransactionResult result) {
         finish(false, result);
     }
 
-    public void finish(boolean isTimedOut, VoipCallTransactionResult result) {
+    private void finish(boolean isTimedOut, VoipCallTransactionResult result) {
         if (mStats != null) mStats.markComplete(isTimedOut, result);
+        finishTransaction();
         // finish all sub transactions
         if (mSubTransactions != null && !mSubTransactions.isEmpty()) {
             mSubTransactions.forEach( t -> t.finish(isTimedOut, result));
@@ -218,7 +254,7 @@
     /**
      * @return Stats related to this transaction if stats are enabled, null otherwise.
      */
-    public Stats getStats() {
+    public final Stats getStats() {
         return mStats;
     }
 }
diff --git a/tests/src/com/android/server/telecom/tests/BlockedNumbersUtilTests.java b/tests/src/com/android/server/telecom/tests/BlockedNumbersUtilTests.java
index 696867e..57aee62 100644
--- a/tests/src/com/android/server/telecom/tests/BlockedNumbersUtilTests.java
+++ b/tests/src/com/android/server/telecom/tests/BlockedNumbersUtilTests.java
@@ -16,10 +16,13 @@
 
 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.ArgumentMatchers.anyString;
 import static org.mockito.ArgumentMatchers.isNull;
 import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
 
 import android.app.Notification;
 import android.app.NotificationManager;
@@ -27,6 +30,7 @@
 
 import androidx.test.filters.SmallTest;
 
+import com.android.server.telecom.settings.BlockedNumbersActivity;
 import com.android.server.telecom.settings.BlockedNumbersUtil;
 
 import org.junit.Before;
@@ -58,4 +62,16 @@
         NotificationManager mgr = mComponentContextFixture.getNotificationManager();
         verify(mgr).cancelAsUser(isNull(), anyInt(), any(UserHandle.class));
     }
+
+    /**
+     * Verify that when Telephony isn't present we can still check if a number is an emergency
+     * number in the {@link BlockedNumbersActivity} and not crash.
+     */
+    @SmallTest
+    @Test
+    public void testBlockedNumbersActivityEmergencyCheckWithNoTelephony() {
+        when(mComponentContextFixture.getTelephonyManager().isEmergencyNumber(anyString()))
+                .thenThrow(new UnsupportedOperationException("Bee boop"));
+        assertFalse(BlockedNumbersActivity.isEmergencyNumber(mContext, "911"));
+    }
 }
diff --git a/tests/src/com/android/server/telecom/tests/CallAudioRouteControllerTest.java b/tests/src/com/android/server/telecom/tests/CallAudioRouteControllerTest.java
index 0a53eb0..f770b6a 100644
--- a/tests/src/com/android/server/telecom/tests/CallAudioRouteControllerTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallAudioRouteControllerTest.java
@@ -20,7 +20,6 @@
 import static com.android.server.telecom.CallAudioRouteAdapter.BT_ACTIVE_DEVICE_GONE;
 import static com.android.server.telecom.CallAudioRouteAdapter.BT_ACTIVE_DEVICE_PRESENT;
 import static com.android.server.telecom.CallAudioRouteAdapter.BT_AUDIO_CONNECTED;
-import static com.android.server.telecom.CallAudioRouteAdapter.BT_AUDIO_DISCONNECTED;
 import static com.android.server.telecom.CallAudioRouteAdapter.BT_DEVICE_ADDED;
 import static com.android.server.telecom.CallAudioRouteAdapter.BT_DEVICE_REMOVED;
 import static com.android.server.telecom.CallAudioRouteAdapter.CONNECT_DOCK;
@@ -35,7 +34,7 @@
 import static com.android.server.telecom.CallAudioRouteAdapter.SPEAKER_ON;
 import static com.android.server.telecom.CallAudioRouteAdapter.STREAMING_FORCE_DISABLED;
 import static com.android.server.telecom.CallAudioRouteAdapter.STREAMING_FORCE_ENABLED;
-import static com.android.server.telecom.CallAudioRouteAdapter.SWITCH_EARPIECE;
+import static com.android.server.telecom.CallAudioRouteAdapter.SWITCH_BLUETOOTH;
 import static com.android.server.telecom.CallAudioRouteAdapter.SWITCH_FOCUS;
 import static com.android.server.telecom.CallAudioRouteAdapter.USER_SWITCH_BLUETOOTH;
 import static com.android.server.telecom.CallAudioRouteAdapter.USER_SWITCH_EARPIECE;
@@ -48,16 +47,17 @@
 import static org.mockito.ArgumentMatchers.anyString;
 import static org.mockito.ArgumentMatchers.nullable;
 import static org.mockito.Mockito.any;
-import static org.mockito.Mockito.atLeast;
 import static org.mockito.Mockito.doAnswer;
 import static org.mockito.Mockito.doNothing;
 import static org.mockito.Mockito.eq;
-import static org.mockito.Mockito.never;
+import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.timeout;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.when;
 
+import android.bluetooth.BluetoothAdapter;
 import android.bluetooth.BluetoothDevice;
+import android.bluetooth.BluetoothLeAudio;
 import android.media.AudioDeviceInfo;
 import android.media.AudioManager;
 import android.media.IAudioService;
@@ -71,7 +71,9 @@
 import com.android.server.telecom.CallAudioManager;
 import com.android.server.telecom.CallAudioRouteController;
 import com.android.server.telecom.CallsManager;
+import com.android.server.telecom.StatusBarNotifier;
 import com.android.server.telecom.WiredHeadsetManager;
+import com.android.server.telecom.bluetooth.BluetoothDeviceManager;
 import com.android.server.telecom.bluetooth.BluetoothRouteManager;
 
 import org.junit.After;
@@ -82,6 +84,7 @@
 import org.mockito.Mock;
 
 import java.util.HashSet;
+import java.util.List;
 import java.util.Set;
 
 @RunWith(JUnit4.class)
@@ -94,6 +97,11 @@
     @Mock CallAudioManager.AudioServiceFactory mAudioServiceFactory;
     @Mock IAudioService mAudioService;
     @Mock BluetoothRouteManager mBluetoothRouteManager;
+    @Mock BluetoothDeviceManager mBluetoothDeviceManager;
+    @Mock BluetoothAdapter mBluetoothAdapter;
+    @Mock StatusBarNotifier mockStatusBarNotifier;
+    @Mock AudioDeviceInfo mAudioDeviceInfo;
+    @Mock BluetoothLeAudio mBluetoothLeAudio;
     private AudioRoute mEarpieceRoute;
     private AudioRoute mSpeakerRoute;
     private static final String BT_ADDRESS_1 = "00:00:00:00:00:01";
@@ -109,7 +117,7 @@
         @Override
         public AudioRoute create(@AudioRoute.AudioRouteType int type, String bluetoothAddress,
                                  AudioManager audioManager) {
-            return new AudioRoute(type, bluetoothAddress, null);
+            return new AudioRoute(type, bluetoothAddress, mAudioDeviceInfo);
         }
     };
 
@@ -124,18 +132,35 @@
                 });
         when(mAudioManager.getPreferredDeviceForStrategy(nullable(AudioProductStrategy.class)))
                 .thenReturn(null);
+        when(mAudioManager.getAvailableCommunicationDevices())
+                .thenReturn(List.of(mAudioDeviceInfo));
+        when(mAudioManager.getCommunicationDevice()).thenReturn(mAudioDeviceInfo);
+        when(mAudioManager.setCommunicationDevice(any(AudioDeviceInfo.class)))
+                .thenReturn(true);
         when(mAudioServiceFactory.getAudioService()).thenReturn(mAudioService);
         when(mContext.getAttributionTag()).thenReturn("");
         doNothing().when(mCallsManager).onCallAudioStateChanged(any(CallAudioState.class),
                 any(CallAudioState.class));
         when(mCallsManager.getCurrentUserHandle()).thenReturn(
                 new UserHandle(UserHandle.USER_SYSTEM));
+        when(mBluetoothRouteManager.getDeviceManager()).thenReturn(mBluetoothDeviceManager);
+        when(mBluetoothDeviceManager.connectAudio(any(BluetoothDevice.class), anyInt()))
+                .thenReturn(true);
+        when(mBluetoothDeviceManager.getBluetoothAdapter()).thenReturn(mBluetoothAdapter);
+        when(mBluetoothAdapter.getActiveDevices(anyInt())).thenReturn(List.of(BLUETOOTH_DEVICE_1));
+        when(mBluetoothDeviceManager.getLeAudioService()).thenReturn(mBluetoothLeAudio);
+        when(mBluetoothLeAudio.getGroupId(any(BluetoothDevice.class))).thenReturn(1);
+        when(mBluetoothLeAudio.getConnectedGroupLeadDevice(anyInt()))
+                .thenReturn(BLUETOOTH_DEVICE_1);
+        when(mAudioDeviceInfo.getAddress()).thenReturn(BT_ADDRESS_1);
         mController = new CallAudioRouteController(mContext, mCallsManager, mAudioServiceFactory,
-                mAudioRouteFactory, mWiredHeadsetManager, mBluetoothRouteManager);
+                mAudioRouteFactory, mWiredHeadsetManager,
+                mBluetoothRouteManager, mockStatusBarNotifier, mFeatureFlags);
         mController.setAudioRouteFactory(mAudioRouteFactory);
         mController.setAudioManager(mAudioManager);
         mEarpieceRoute = new AudioRoute(AudioRoute.TYPE_EARPIECE, null, null);
         mSpeakerRoute = new AudioRoute(AudioRoute.TYPE_SPEAKER, null, null);
+        when(mFeatureFlags.ignoreAutoRouteToWatchDevice()).thenReturn(false);
     }
 
     @After
@@ -166,44 +191,6 @@
 
     @SmallTest
     @Test
-    public void testActivateAndRemoveBluetoothDeviceDuringCall() {
-        doAnswer(invocation -> {
-            mController.sendMessageWithSessionInfo(BT_AUDIO_CONNECTED, 0, BLUETOOTH_DEVICE_1);
-            return true;
-        }).when(mAudioManager).setCommunicationDevice(nullable(AudioDeviceInfo.class));
-
-        mController.initialize();
-        mController.setActive(true);
-        mController.sendMessageWithSessionInfo(BT_DEVICE_ADDED, AudioRoute.TYPE_BLUETOOTH_SCO,
-                BLUETOOTH_DEVICE_1);
-        CallAudioState expectedState = new CallAudioState(false, CallAudioState.ROUTE_EARPIECE,
-                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH
-                        | CallAudioState.ROUTE_SPEAKER, null, BLUETOOTH_DEVICES);
-        verify(mCallsManager, timeout(TEST_TIMEOUT)).onCallAudioStateChanged(
-                any(CallAudioState.class), eq(expectedState));
-
-        mController.sendMessageWithSessionInfo(BT_ACTIVE_DEVICE_PRESENT,
-                AudioRoute.TYPE_BLUETOOTH_SCO, BT_ADDRESS_1);
-        verify(mAudioManager, timeout(TEST_TIMEOUT)).setCommunicationDevice(
-                nullable(AudioDeviceInfo.class));
-
-        expectedState = new CallAudioState(false, CallAudioState.ROUTE_BLUETOOTH,
-                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH
-                        | CallAudioState.ROUTE_SPEAKER, BLUETOOTH_DEVICE_1, BLUETOOTH_DEVICES);
-        verify(mCallsManager, timeout(TEST_TIMEOUT)).onCallAudioStateChanged(
-                any(CallAudioState.class), eq(expectedState));
-
-        mController.sendMessageWithSessionInfo(BT_DEVICE_REMOVED, AudioRoute.TYPE_BLUETOOTH_SCO,
-                BLUETOOTH_DEVICE_1);
-        expectedState = new CallAudioState(false, CallAudioState.ROUTE_EARPIECE,
-                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_SPEAKER, null,
-                new HashSet<>());
-        verify(mCallsManager, timeout(TEST_TIMEOUT)).onCallAudioStateChanged(
-                any(CallAudioState.class), eq(expectedState));
-    }
-
-    @SmallTest
-    @Test
     public void testActiveDeactivateBluetoothDevice() {
         mController.initialize();
         mController.sendMessageWithSessionInfo(BT_DEVICE_ADDED, AudioRoute.TYPE_BLUETOOTH_SCO,
@@ -229,14 +216,6 @@
     @SmallTest
     @Test
     public void testSwitchFocusForBluetoothDeviceSupportInbandRinging() {
-        doAnswer(invocation -> {
-            mController.sendMessageWithSessionInfo(BT_AUDIO_CONNECTED, 0, BLUETOOTH_DEVICE_1);
-            return true;
-        }).when(mAudioManager).setCommunicationDevice(nullable(AudioDeviceInfo.class));
-        doAnswer(invocation -> {
-            mController.sendMessageWithSessionInfo(BT_AUDIO_DISCONNECTED, 0, BLUETOOTH_DEVICE_1);
-            return true;
-        }).when(mAudioManager).clearCommunicationDevice();
         when(mBluetoothRouteManager.isInbandRingEnabled(eq(BLUETOOTH_DEVICE_1))).thenReturn(true);
 
         mController.initialize();
@@ -253,15 +232,15 @@
         assertFalse(mController.isActive());
 
         mController.sendMessageWithSessionInfo(SWITCH_FOCUS, RINGING_FOCUS);
-        verify(mAudioManager, timeout(TEST_TIMEOUT)).setCommunicationDevice(
-                nullable(AudioDeviceInfo.class));
+        verify(mBluetoothDeviceManager, timeout(TEST_TIMEOUT))
+                .connectAudio(BLUETOOTH_DEVICE_1, AudioRoute.TYPE_BLUETOOTH_SCO);
         assertTrue(mController.isActive());
 
         mController.sendMessageWithSessionInfo(SWITCH_FOCUS, ACTIVE_FOCUS);
         assertTrue(mController.isActive());
 
         mController.sendMessageWithSessionInfo(SWITCH_FOCUS, NO_FOCUS);
-        verify(mAudioManager, timeout(TEST_TIMEOUT)).clearCommunicationDevice();
+        verify(mBluetoothDeviceManager, timeout(TEST_TIMEOUT).atLeastOnce()).disconnectSco();
         assertFalse(mController.isActive());
     }
 
@@ -480,4 +459,191 @@
         verify(mCallsManager, timeout(TEST_TIMEOUT)).onCallAudioStateChanged(
                 any(CallAudioState.class), eq(expectedState));
     }
+
+    @SmallTest
+    @Test
+    public void testIgnoreAutoRouteToWatch() {
+        when(mFeatureFlags.ignoreAutoRouteToWatchDevice()).thenReturn(true);
+        when(mBluetoothRouteManager.isWatch(any(BluetoothDevice.class))).thenReturn(true);
+
+        mController.initialize();
+        mController.sendMessageWithSessionInfo(BT_DEVICE_ADDED, AudioRoute.TYPE_BLUETOOTH_SCO,
+                BLUETOOTH_DEVICE_1);
+        CallAudioState expectedState = new CallAudioState(false, CallAudioState.ROUTE_EARPIECE,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH
+                        | CallAudioState.ROUTE_SPEAKER, null, BLUETOOTH_DEVICES);
+        verify(mCallsManager, timeout(TEST_TIMEOUT)).onCallAudioStateChanged(
+                any(CallAudioState.class), eq(expectedState));
+
+        // Connect wired headset.
+        mController.sendMessageWithSessionInfo(CONNECT_WIRED_HEADSET);
+        expectedState = new CallAudioState(false, CallAudioState.ROUTE_WIRED_HEADSET,
+                CallAudioState.ROUTE_WIRED_HEADSET | CallAudioState.ROUTE_SPEAKER
+                        | CallAudioState.ROUTE_BLUETOOTH, null, BLUETOOTH_DEVICES);
+        verify(mCallsManager, timeout(TEST_TIMEOUT)).onCallAudioStateChanged(
+                any(CallAudioState.class), eq(expectedState));
+
+        // Disconnect wired headset and ensure Telecom routes to earpiece instead of the BT route.
+        mController.sendMessageWithSessionInfo(DISCONNECT_WIRED_HEADSET);
+        expectedState = new CallAudioState(false, CallAudioState.ROUTE_EARPIECE,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_SPEAKER
+                        | CallAudioState.ROUTE_BLUETOOTH, null , BLUETOOTH_DEVICES);
+        verify(mCallsManager, timeout(TEST_TIMEOUT)).onCallAudioStateChanged(
+                any(CallAudioState.class), eq(expectedState));
+    }
+
+    @SmallTest
+    @Test
+    public void testConnectDisconnectScoDuringCall() {
+        verifyConnectBluetoothDevice(AudioRoute.TYPE_BLUETOOTH_SCO);
+        verifyDisconnectBluetoothDevice(AudioRoute.TYPE_BLUETOOTH_SCO);
+    }
+
+    @SmallTest
+    @Test
+    public void testConnectAndDisconnectLeDeviceDuringCall() {
+        when(mBluetoothLeAudio.getConnectedGroupLeadDevice(anyInt()))
+                .thenReturn(BLUETOOTH_DEVICE_1);
+        verifyConnectBluetoothDevice(AudioRoute.TYPE_BLUETOOTH_LE);
+        verifyDisconnectBluetoothDevice(AudioRoute.TYPE_BLUETOOTH_LE);
+    }
+
+    @SmallTest
+    @Test
+    public void testConnectAndDisconnectHearingAidDuringCall() {
+        verifyConnectBluetoothDevice(AudioRoute.TYPE_BLUETOOTH_HA);
+        verifyDisconnectBluetoothDevice(AudioRoute.TYPE_BLUETOOTH_HA);
+    }
+
+    @SmallTest
+    @Test
+    public void testSwitchBetweenLeAndScoDevices() {
+        when(mBluetoothLeAudio.getConnectedGroupLeadDevice(anyInt()))
+                .thenReturn(BLUETOOTH_DEVICE_1);
+        verifyConnectBluetoothDevice(AudioRoute.TYPE_BLUETOOTH_LE);
+        BluetoothDevice scoDevice =
+                BluetoothRouteManagerTest.makeBluetoothDevice("00:00:00:00:00:03");
+        BLUETOOTH_DEVICES.add(scoDevice);
+
+        // Add SCO device.
+        mController.sendMessageWithSessionInfo(BT_DEVICE_ADDED, AudioRoute.TYPE_BLUETOOTH_SCO,
+                scoDevice);
+        CallAudioState expectedState = new CallAudioState(false, CallAudioState.ROUTE_BLUETOOTH,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH
+                        | CallAudioState.ROUTE_SPEAKER, BLUETOOTH_DEVICE_1, BLUETOOTH_DEVICES);
+        verify(mCallsManager, timeout(TEST_TIMEOUT)).onCallAudioStateChanged(
+                any(CallAudioState.class), eq(expectedState));
+
+        // Switch to SCO and verify active device is updated.
+        mController.sendMessageWithSessionInfo(USER_SWITCH_BLUETOOTH, 0, scoDevice.getAddress());
+        mController.sendMessageWithSessionInfo(BT_AUDIO_CONNECTED, 0, scoDevice);
+        expectedState = new CallAudioState(false, CallAudioState.ROUTE_BLUETOOTH,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH
+                        | CallAudioState.ROUTE_SPEAKER, scoDevice, BLUETOOTH_DEVICES);
+        verify(mCallsManager, timeout(TEST_TIMEOUT)).onCallAudioStateChanged(
+                any(CallAudioState.class), eq(expectedState));
+
+        // Disconnect SCO and verify audio routed back to LE audio.
+        BLUETOOTH_DEVICES.remove(scoDevice);
+        mController.sendMessageWithSessionInfo(BT_DEVICE_REMOVED, AudioRoute.TYPE_BLUETOOTH_SCO,
+                scoDevice);
+        expectedState = new CallAudioState(false, CallAudioState.ROUTE_BLUETOOTH,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH
+                        | CallAudioState.ROUTE_SPEAKER, BLUETOOTH_DEVICE_1, BLUETOOTH_DEVICES);
+        verify(mCallsManager, timeout(TEST_TIMEOUT)).onCallAudioStateChanged(
+                any(CallAudioState.class), eq(expectedState));
+    }
+
+    @SmallTest
+    @Test
+    public void testFallbackWhenBluetoothConnectionFails() {
+        when(mBluetoothDeviceManager.connectAudio(any(BluetoothDevice.class), anyInt()))
+                .thenReturn(false);
+
+        AudioDeviceInfo mockAudioDeviceInfo = mock(AudioDeviceInfo.class);
+        when(mAudioManager.getCommunicationDevice()).thenReturn(mockAudioDeviceInfo);
+        verifyConnectBluetoothDevice(AudioRoute.TYPE_BLUETOOTH_LE);
+        BluetoothDevice scoDevice =
+                BluetoothRouteManagerTest.makeBluetoothDevice("00:00:00:00:00:03");
+        BLUETOOTH_DEVICES.add(scoDevice);
+
+        // Add SCO device.
+        mController.sendMessageWithSessionInfo(BT_DEVICE_ADDED, AudioRoute.TYPE_BLUETOOTH_SCO,
+                scoDevice);
+        CallAudioState expectedState = new CallAudioState(false, CallAudioState.ROUTE_BLUETOOTH,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH
+                        | CallAudioState.ROUTE_SPEAKER, BLUETOOTH_DEVICE_1, BLUETOOTH_DEVICES);
+        verify(mCallsManager, timeout(TEST_TIMEOUT)).onCallAudioStateChanged(
+                any(CallAudioState.class), eq(expectedState));
+
+        // Switch to SCO but reject connection and make sure audio is routed back to LE device.
+        mController.sendMessageWithSessionInfo(BT_ACTIVE_DEVICE_PRESENT,
+                AudioRoute.TYPE_BLUETOOTH_SCO, scoDevice.getAddress());
+        verify(mBluetoothDeviceManager, timeout(TEST_TIMEOUT))
+                .connectAudio(scoDevice, AudioRoute.TYPE_BLUETOOTH_SCO);
+        expectedState = new CallAudioState(false, CallAudioState.ROUTE_BLUETOOTH,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH
+                        | CallAudioState.ROUTE_SPEAKER, BLUETOOTH_DEVICE_1, BLUETOOTH_DEVICES);
+        verify(mCallsManager, timeout(TEST_TIMEOUT).atLeastOnce()).onCallAudioStateChanged(
+                any(CallAudioState.class), eq(expectedState));
+
+        // Cleanup supported devices for next test
+        BLUETOOTH_DEVICES.remove(scoDevice);
+    }
+
+    private void verifyConnectBluetoothDevice(int audioType) {
+        mController.initialize();
+        mController.setActive(true);
+
+        mController.sendMessageWithSessionInfo(BT_DEVICE_ADDED, audioType, BLUETOOTH_DEVICE_1);
+        CallAudioState expectedState = new CallAudioState(false, CallAudioState.ROUTE_EARPIECE,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH
+                        | CallAudioState.ROUTE_SPEAKER, null, BLUETOOTH_DEVICES);
+        verify(mCallsManager, timeout(TEST_TIMEOUT)).onCallAudioStateChanged(
+                any(CallAudioState.class), eq(expectedState));
+
+        mController.sendMessageWithSessionInfo(BT_ACTIVE_DEVICE_PRESENT, audioType, BT_ADDRESS_1);
+        if (audioType == AudioRoute.TYPE_BLUETOOTH_SCO) {
+            verify(mBluetoothDeviceManager, timeout(TEST_TIMEOUT))
+                    .connectAudio(BLUETOOTH_DEVICE_1, AudioRoute.TYPE_BLUETOOTH_SCO);
+            mController.sendMessageWithSessionInfo(BT_AUDIO_CONNECTED,
+                    0, BLUETOOTH_DEVICE_1);
+        } else {
+            verify(mAudioManager, timeout(TEST_TIMEOUT))
+                    .setCommunicationDevice(nullable(AudioDeviceInfo.class));
+        }
+
+        expectedState = new CallAudioState(false, CallAudioState.ROUTE_BLUETOOTH,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH
+                        | CallAudioState.ROUTE_SPEAKER, BLUETOOTH_DEVICE_1, BLUETOOTH_DEVICES);
+        verify(mCallsManager, timeout(TEST_TIMEOUT)).onCallAudioStateChanged(
+                any(CallAudioState.class), eq(expectedState));
+
+        // Test hearing aid pair and ensure second device isn't added as a route
+        if (audioType == AudioRoute.TYPE_BLUETOOTH_HA) {
+            BluetoothDevice hearingAidDevice2 =
+                    BluetoothRouteManagerTest.makeBluetoothDevice("00:00:00:00:00:02");
+            mController.sendMessageWithSessionInfo(BT_DEVICE_ADDED, audioType, hearingAidDevice2);
+            expectedState = new CallAudioState(false, CallAudioState.ROUTE_EARPIECE,
+                    CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_BLUETOOTH
+                            | CallAudioState.ROUTE_SPEAKER, null, BLUETOOTH_DEVICES);
+            // Verify that supported BT devices only shows the first connected hearing aid device.
+            verify(mCallsManager, timeout(TEST_TIMEOUT)).onCallAudioStateChanged(
+                    any(CallAudioState.class), eq(expectedState));
+        }
+    }
+
+    private void verifyDisconnectBluetoothDevice(int audioType) {
+        mController.sendMessageWithSessionInfo(BT_DEVICE_REMOVED, audioType, BLUETOOTH_DEVICE_1);
+        CallAudioState expectedState = new CallAudioState(false, CallAudioState.ROUTE_EARPIECE,
+                CallAudioState.ROUTE_EARPIECE | CallAudioState.ROUTE_SPEAKER, null,
+                new HashSet<>());
+        if (audioType == AudioRoute.TYPE_BLUETOOTH_SCO) {
+            verify(mBluetoothDeviceManager, timeout(TEST_TIMEOUT)).disconnectSco();
+        } else {
+            verify(mAudioManager, timeout(TEST_TIMEOUT)).clearCommunicationDevice();
+        }
+        verify(mCallsManager, timeout(TEST_TIMEOUT)).onCallAudioStateChanged(
+                any(CallAudioState.class), eq(expectedState));
+    }
 }
diff --git a/tests/src/com/android/server/telecom/tests/CallEndpointControllerTest.java b/tests/src/com/android/server/telecom/tests/CallEndpointControllerTest.java
index 9101a19..b8b9560 100644
--- a/tests/src/com/android/server/telecom/tests/CallEndpointControllerTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallEndpointControllerTest.java
@@ -40,6 +40,7 @@
 import com.android.server.telecom.CallEndpointController;
 import com.android.server.telecom.CallsManager;
 import com.android.server.telecom.ConnectionServiceWrapper;
+import com.android.server.telecom.flags.FeatureFlags;
 
 import org.junit.Before;
 import org.junit.After;
@@ -101,7 +102,10 @@
     @Before
     public void setUp() throws Exception {
         super.setUp();
-        mCallEndpointController = new CallEndpointController(mMockContext, mCallsManager);
+        mCallEndpointController = new CallEndpointController(
+                mMockContext,
+                mCallsManager,
+                mFeatureFlags);
         doReturn(new HashSet<>(Arrays.asList(mCall))).when(mCallsManager).getTrackedCalls();
         doReturn(mConnectionService).when(mCall).getConnectionService();
         doReturn(mCallAudioManager).when(mCallsManager).getCallAudioManager();
diff --git a/tests/src/com/android/server/telecom/tests/CallLogManagerTest.java b/tests/src/com/android/server/telecom/tests/CallLogManagerTest.java
index fa35f25..4e57a3a 100644
--- a/tests/src/com/android/server/telecom/tests/CallLogManagerTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallLogManagerTest.java
@@ -188,7 +188,7 @@
 
         when(userManager.isUserRunning(any(UserHandle.class))).thenReturn(true);
         when(userManager.isUserUnlocked(any(UserHandle.class))).thenReturn(true);
-        when(userManager.hasUserRestriction(any(String.class), any(UserHandle.class)))
+        when(userManager.hasUserRestrictionForUser(any(String.class), any(UserHandle.class)))
                 .thenReturn(false);
         when(userManager.getAliveUsers())
                 .thenReturn(Arrays.asList(userInfo, otherUserInfo, managedProfileUserInfo));
@@ -198,6 +198,7 @@
         PackageManager packageManager = mContext.getPackageManager();
         when(packageManager.hasSystemFeature(PackageManager.FEATURE_WATCH)).thenReturn(false);
         when(mFeatureFlags.telecomLogExternalWearableCalls()).thenReturn(false);
+        when(mFeatureFlags.telecomResolveHiddenDependencies()).thenReturn(true);
     }
 
     @Override
@@ -666,6 +667,8 @@
     @MediumTest
     @Test
     public void testLogCallDirectionOutgoingWithMultiUserCapabilityFromManagedProfile() {
+        UserManager userManager = mContext.getSystemService(UserManager.class);
+        when(userManager.isManagedProfile()).thenReturn(true);
         when(mMockPhoneAccountRegistrar.getPhoneAccountUnchecked(any(PhoneAccountHandle.class)))
                 .thenReturn(makeFakePhoneAccount(mManagedProfileAccountHandle,
                         PhoneAccount.CAPABILITY_MULTI_USER));
diff --git a/tests/src/com/android/server/telecom/tests/CallRedirectionProcessorTest.java b/tests/src/com/android/server/telecom/tests/CallRedirectionProcessorTest.java
index 8210686..241216a 100644
--- a/tests/src/com/android/server/telecom/tests/CallRedirectionProcessorTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallRedirectionProcessorTest.java
@@ -378,4 +378,22 @@
         verify(mContext, times(1)).
                 unbindService(any(ServiceConnection.class));
     }
+
+    /**
+     * Verifies that calling formatNumberToE164 will not crash when Telephony is not present and
+     * we can't ascertain the network country ISO.
+     */
+    @Test
+    public void testFormatNumberToE164WhenNoTelephony() {
+        // Need to do this even though we're just testing the helper
+        startProcessWithNoGateWayInfo();
+
+        CallRedirectionProcessorHelper helper = new CallRedirectionProcessorHelper(mContext,
+                mCallsManager, mPhoneAccountRegistrar);
+        when(mComponentContextFixture.getTelephonyManager().getNetworkCountryIso())
+                .thenThrow(new UnsupportedOperationException("Bee boop"));
+        assertEquals(Uri.fromParts("tel", "6505551212", null),
+                helper.formatNumberToE164(
+                        Uri.fromParts("tel", "6505551212", null)));
+    }
 }
diff --git a/tests/src/com/android/server/telecom/tests/CallTest.java b/tests/src/com/android/server/telecom/tests/CallTest.java
index e06938d..58d3302 100644
--- a/tests/src/com/android/server/telecom/tests/CallTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallTest.java
@@ -22,14 +22,17 @@
 import static org.junit.Assert.assertNull;
 import static org.junit.Assert.assertTrue;
 import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyBoolean;
 import static org.mockito.ArgumentMatchers.anyInt;
 import static org.mockito.ArgumentMatchers.argThat;
 import static org.mockito.ArgumentMatchers.eq;
+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.times;
 import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
 
 import android.content.ComponentName;
 import android.content.Intent;
@@ -40,6 +43,7 @@
 import android.os.Bundle;
 import android.os.UserHandle;
 import android.telecom.CallAttributes;
+import android.telecom.CallEndpoint;
 import android.telecom.CallerInfo;
 import android.telecom.Connection;
 import android.telecom.DisconnectCause;
@@ -56,6 +60,9 @@
 import androidx.test.ext.junit.runners.AndroidJUnit4;
 import androidx.test.filters.SmallTest;
 
+import com.android.server.telecom.CachedAvailableEndpointsChange;
+import com.android.server.telecom.CachedCurrentEndpointChange;
+import com.android.server.telecom.CachedMuteStateChange;
 import com.android.server.telecom.Call;
 import com.android.server.telecom.CallIdMapper;
 import com.android.server.telecom.CallState;
@@ -63,6 +70,7 @@
 import com.android.server.telecom.CallsManager;
 import com.android.server.telecom.ClockProxy;
 import com.android.server.telecom.ConnectionServiceWrapper;
+import com.android.server.telecom.EmergencyCallHelper;
 import com.android.server.telecom.PhoneAccountRegistrar;
 import com.android.server.telecom.PhoneNumberUtilsAdapter;
 import com.android.server.telecom.TelecomSystem;
@@ -78,6 +86,7 @@
 import org.mockito.Mockito;
 
 import java.util.Collections;
+import java.util.Set;
 
 @RunWith(AndroidJUnit4.class)
 public class CallTest extends TelecomTestCase {
@@ -100,7 +109,6 @@
     @Mock private PhoneAccountRegistrar mMockPhoneAccountRegistrar;
     @Mock private ClockProxy mMockClockProxy;
     @Mock private ToastFactory mMockToastProxy;
-    @Mock private Toast mMockToast;
     @Mock private PhoneNumberUtilsAdapter mMockPhoneNumberUtilsAdapter;
     @Mock private ConnectionServiceWrapper mMockConnectionService;
     @Mock private TransactionalServiceWrapper mMockTransactionalService;
@@ -117,8 +125,9 @@
                 eq(SIM_1_HANDLE));
         doReturn(new ComponentName(mContext, CallTest.class))
                 .when(mMockConnectionService).getComponentName();
-        doReturn(mMockToast).when(mMockToastProxy).makeText(any(), anyInt(), anyInt());
         doReturn(UserHandle.CURRENT).when(mMockCallsManager).getCurrentUserHandle();
+        EmergencyCallHelper helper = mock(EmergencyCallHelper.class);
+        doReturn(helper).when(mMockCallsManager).getEmergencyCallHelper();
     }
 
     @After
@@ -137,6 +146,148 @@
         assertTrue(call.hasGoneActiveBefore());
     }
 
+    @Test
+    public void testMultipleCachedMuteStateChanges() {
+        when(mFeatureFlags.cacheCallAudioCallbacks()).thenReturn(true);
+        TransactionalServiceWrapper tsw = Mockito.mock(TransactionalServiceWrapper.class);
+        Call call = createCall("1", Call.CALL_DIRECTION_INCOMING);
+
+        assertNull(call.getTransactionServiceWrapper());
+
+        call.cacheServiceCallback(new CachedMuteStateChange(true));
+        assertEquals(1, call.getCachedServiceCallbacks().size());
+
+        call.cacheServiceCallback(new CachedMuteStateChange(false));
+        assertEquals(1, call.getCachedServiceCallbacks().size());
+
+        CachedMuteStateChange currentCacheMuteState = (CachedMuteStateChange) call
+                .getCachedServiceCallbacks()
+                .get(CachedMuteStateChange.ID);
+
+        assertFalse(currentCacheMuteState.isMuted());
+
+        call.setTransactionServiceWrapper(tsw);
+        verify(tsw, times(1)).onMuteStateChanged(any(), eq(false));
+        assertEquals(0, call.getCachedServiceCallbacks().size());
+    }
+
+    @Test
+    public void testMultipleCachedCurrentEndpointChanges() {
+        when(mFeatureFlags.cacheCallAudioCallbacks()).thenReturn(true);
+        TransactionalServiceWrapper tsw = Mockito.mock(TransactionalServiceWrapper.class);
+        CallEndpoint earpiece = Mockito.mock(CallEndpoint.class);
+        CallEndpoint speaker = Mockito.mock(CallEndpoint.class);
+        when(earpiece.getEndpointType()).thenReturn(CallEndpoint.TYPE_EARPIECE);
+        when(speaker.getEndpointType()).thenReturn(CallEndpoint.TYPE_SPEAKER);
+
+        Call call = createCall("1", Call.CALL_DIRECTION_INCOMING);
+
+        assertNull(call.getTransactionServiceWrapper());
+
+        call.cacheServiceCallback(new CachedCurrentEndpointChange(earpiece));
+        assertEquals(1, call.getCachedServiceCallbacks().size());
+
+        call.cacheServiceCallback(new CachedCurrentEndpointChange(speaker));
+        assertEquals(1, call.getCachedServiceCallbacks().size());
+
+        CachedCurrentEndpointChange currentEndpointChange = (CachedCurrentEndpointChange) call
+                .getCachedServiceCallbacks()
+                .get(CachedCurrentEndpointChange.ID);
+
+        assertEquals(CallEndpoint.TYPE_SPEAKER,
+                currentEndpointChange.getCurrentCallEndpoint().getEndpointType());
+
+        call.setTransactionServiceWrapper(tsw);
+        verify(tsw, times(1)).onCallEndpointChanged(any(), any());
+        assertEquals(0, call.getCachedServiceCallbacks().size());
+    }
+
+    @Test
+    public void testMultipleCachedAvailableEndpointChanges() {
+        when(mFeatureFlags.cacheCallAudioCallbacks()).thenReturn(true);
+        TransactionalServiceWrapper tsw = Mockito.mock(TransactionalServiceWrapper.class);
+        CallEndpoint earpiece = Mockito.mock(CallEndpoint.class);
+        CallEndpoint bluetooth = Mockito.mock(CallEndpoint.class);
+        Set<CallEndpoint> initialSet = Set.of(earpiece);
+        Set<CallEndpoint> finalSet = Set.of(earpiece, bluetooth);
+        when(earpiece.getEndpointType()).thenReturn(CallEndpoint.TYPE_EARPIECE);
+        when(bluetooth.getEndpointType()).thenReturn(CallEndpoint.TYPE_BLUETOOTH);
+
+        Call call = createCall("1", Call.CALL_DIRECTION_INCOMING);
+
+        assertNull(call.getTransactionServiceWrapper());
+
+        call.cacheServiceCallback(new CachedAvailableEndpointsChange(initialSet));
+        assertEquals(1, call.getCachedServiceCallbacks().size());
+
+        call.cacheServiceCallback(new CachedAvailableEndpointsChange(finalSet));
+        assertEquals(1, call.getCachedServiceCallbacks().size());
+
+        CachedAvailableEndpointsChange availableEndpoints = (CachedAvailableEndpointsChange) call
+                .getCachedServiceCallbacks()
+                .get(CachedAvailableEndpointsChange.ID);
+
+        assertEquals(2, availableEndpoints.getAvailableEndpoints().size());
+
+        call.setTransactionServiceWrapper(tsw);
+        verify(tsw, times(1)).onAvailableCallEndpointsChanged(any(), any());
+        assertEquals(0, call.getCachedServiceCallbacks().size());
+    }
+
+    /**
+     * verify that if multiple types of cached callbacks are added to the call, the call executes
+     * all the callbacks once the service is set.
+     */
+    @Test
+    public void testAllCachedCallbacks() {
+        when(mFeatureFlags.cacheCallAudioCallbacks()).thenReturn(true);
+        TransactionalServiceWrapper tsw = Mockito.mock(TransactionalServiceWrapper.class);
+        CallEndpoint earpiece = Mockito.mock(CallEndpoint.class);
+        CallEndpoint bluetooth = Mockito.mock(CallEndpoint.class);
+        Set<CallEndpoint> availableEndpointsSet = Set.of(earpiece, bluetooth);
+        when(earpiece.getEndpointType()).thenReturn(CallEndpoint.TYPE_EARPIECE);
+        when(bluetooth.getEndpointType()).thenReturn(CallEndpoint.TYPE_BLUETOOTH);
+        Call call = createCall("1", Call.CALL_DIRECTION_INCOMING);
+
+        // The call should have a null service so that callbacks are cached
+        assertNull(call.getTransactionServiceWrapper());
+
+        // add cached callbacks
+        call.cacheServiceCallback(new CachedMuteStateChange(false));
+        assertEquals(1, call.getCachedServiceCallbacks().size());
+        call.cacheServiceCallback(new CachedCurrentEndpointChange(earpiece));
+        assertEquals(2, call.getCachedServiceCallbacks().size());
+        call.cacheServiceCallback(new CachedAvailableEndpointsChange(availableEndpointsSet));
+        assertEquals(3, call.getCachedServiceCallbacks().size());
+
+        // verify the cached callbacks are stored properly within the cache map and the values
+        // can be evaluated
+        CachedMuteStateChange currentCacheMuteState = (CachedMuteStateChange) call
+                .getCachedServiceCallbacks()
+                .get(CachedMuteStateChange.ID);
+        CachedCurrentEndpointChange currentEndpointChange = (CachedCurrentEndpointChange) call
+                .getCachedServiceCallbacks()
+                .get(CachedCurrentEndpointChange.ID);
+        CachedAvailableEndpointsChange availableEndpoints = (CachedAvailableEndpointsChange) call
+                .getCachedServiceCallbacks()
+                .get(CachedAvailableEndpointsChange.ID);
+        assertFalse(currentCacheMuteState.isMuted());
+        assertEquals(CallEndpoint.TYPE_EARPIECE,
+                currentEndpointChange.getCurrentCallEndpoint().getEndpointType());
+        assertEquals(2, availableEndpoints.getAvailableEndpoints().size());
+
+        // set the service to a non-null value
+        call.setTransactionServiceWrapper(tsw);
+
+        // ensure the cached callbacks were executed
+        verify(tsw, times(1)).onMuteStateChanged(any(), anyBoolean());
+        verify(tsw, times(1)).onCallEndpointChanged(any(), any());
+        verify(tsw, times(1)).onAvailableCallEndpointsChanged(any(), any());
+
+        // the cache map should be cleared
+        assertEquals(0, call.getCachedServiceCallbacks().size());
+    }
+
     /**
      * Basic tests to check which call states are considered transitory.
      */
@@ -304,7 +455,6 @@
         doReturn(true).when(mMockCallsManager).isInEmergencyCall();
         call.pullExternalCall();
         verify(mMockConnectionService, never()).pullExternalCall(any());
-        verify(mMockToast).show();
     }
 
     @Test
@@ -746,6 +896,24 @@
         assertFalse(call.getExtras().containsKey(TelecomManager.EXTRA_DO_NOT_LOG_CALL));
     }
 
+    /**
+     * Verify that a Call can handle a case where no telephony stack is present to detect emergency
+     * numbers.
+     */
+    @Test
+    @SmallTest
+    public void testNoTelephonyEmergencyBehavior() {
+        when(mComponentContextFixture.getTelephonyManager().isEmergencyNumber(any()))
+                .thenReturn(true);
+        Call testCall = createCall("1", Call.CALL_DIRECTION_OUTGOING, Uri.parse("tel:911"));
+        assertTrue(testCall.isEmergencyCall());
+
+        when(mComponentContextFixture.getTelephonyManager().isEmergencyNumber(any()))
+                .thenThrow(new UnsupportedOperationException("Bee-boop"));
+        Call testCall2 = createCall("2", Call.CALL_DIRECTION_OUTGOING, Uri.parse("tel:911"));
+        assertTrue(!testCall2.isEmergencyCall());
+    }
+
     @Test
     @SmallTest
     public void testExcludesConnectionServiceWithoutModifyStatePermissionFromDoNotLogCallExtra() {
@@ -785,6 +953,10 @@
     }
 
     private Call createCall(String id, int callDirection) {
+        return createCall(id, callDirection, TEST_ADDRESS);
+    }
+
+    private Call createCall(String id, int callDirection, Uri address) {
         return new Call(
                 id,
                 mContext,
@@ -792,7 +964,7 @@
                 mLock,
                 null,
                 mMockPhoneNumberUtilsAdapter,
-                TEST_ADDRESS,
+                address,
                 null /* GatewayInfo */,
                 null,
                 SIM_1_HANDLE,
diff --git a/tests/src/com/android/server/telecom/tests/CallsManagerTest.java b/tests/src/com/android/server/telecom/tests/CallsManagerTest.java
index cb9aba9..e7f2d83 100644
--- a/tests/src/com/android/server/telecom/tests/CallsManagerTest.java
+++ b/tests/src/com/android/server/telecom/tests/CallsManagerTest.java
@@ -36,6 +36,7 @@
 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.inOrder;
 import static org.mockito.Mockito.mock;
 import static org.mockito.Mockito.never;
@@ -64,7 +65,7 @@
 import android.os.SystemClock;
 import android.os.UserHandle;
 import android.os.UserManager;
-import android.provider.BlockedNumberContract;
+import android.provider.BlockedNumbersManager;
 import android.telecom.CallException;
 import android.telecom.CallScreeningService;
 import android.telecom.CallerInfo;
@@ -298,7 +299,6 @@
     @Mock private BluetoothStateReceiver mBluetoothStateReceiver;
     @Mock private RoleManagerAdapter mRoleManagerAdapter;
     @Mock private ToastFactory mToastFactory;
-    @Mock private Toast mToast;
     @Mock private CallAnomalyWatchdog mCallAnomalyWatchdog;
 
     @Mock private EmergencyCallDiagnosticLogger mEmergencyCallDiagnosticLogger;
@@ -312,6 +312,8 @@
     @Mock private FeatureFlags mFeatureFlags;
     @Mock private com.android.internal.telephony.flags.FeatureFlags mTelephonyFlags;
     @Mock private IncomingCallFilterGraph mIncomingCallFilterGraph;
+    @Mock private Context mMockCreateContextAsUser;
+    @Mock private UserManager mMockCurrentUserManager;
     private CallsManager mCallsManager;
 
     @Override
@@ -403,9 +405,12 @@
                 eq(CALL_PROVIDER_HANDLE), any())).thenReturn(CALL_PROVIDER_ACCOUNT);
         when(mPhoneAccountRegistrar.getPhoneAccount(
                 eq(WORK_HANDLE), any())).thenReturn(WORK_ACCOUNT);
-        when(mToastFactory.makeText(any(), anyInt(), anyInt())).thenReturn(mToast);
-        when(mToastFactory.makeText(any(), any(), anyInt())).thenReturn(mToast);
         when(mFeatureFlags.separatelyBindToBtIncallService()).thenReturn(false);
+        when(mFeatureFlags.telecomResolveHiddenDependencies()).thenReturn(true);
+        when(mContext.createContextAsUser(any(UserHandle.class), eq(0)))
+                .thenReturn(mMockCreateContextAsUser);
+        when(mMockCreateContextAsUser.getSystemService(UserManager.class))
+                .thenReturn(mMockCurrentUserManager);
     }
 
     @Override
@@ -1436,6 +1441,36 @@
         verify(incomingCall).setIsUsingCallFiltering(eq(false));
     }
 
+    /**
+     * Verify the ability to skip call filtering when Telephony reports we are in emergency SMS mode
+     * and also verify that when Telephony is not available we will not try to skip filtering.
+     */
+    @SmallTest
+    @Test
+    public void testFilteringWhenEmergencySmsCheckFails() {
+        // First see if it works when Telephony is present.
+        Call incomingCall = addSpyCall(CallState.NEW);
+        doReturn(true).when(mComponentContextFixture.getTelephonyManager()).isInEmergencySmsMode();
+        mCallsManager.onSuccessfulIncomingCall(incomingCall);
+        verify(incomingCall).setIsUsingCallFiltering(eq(false));
+
+        // Ensure when there is no telephony it doesn't try to skip filtering.
+        Call incomingCall2 = addSpyCall(CallState.NEW);
+        doThrow(new UnsupportedOperationException("Bee-boop")).when(
+                mComponentContextFixture.getTelephonyManager()).isInEmergencySmsMode();
+        mCallsManager.onSuccessfulIncomingCall(incomingCall2);
+        verify(incomingCall2).setIsUsingCallFiltering(eq(true));
+    }
+
+    @SmallTest
+    @Test
+    public void testDsdaAvailableCheckWhenNoTelephony() {
+        doThrow(new UnsupportedOperationException("Bee-boop")).when(
+                mComponentContextFixture.getTelephonyManager())
+                        .getMaxNumberOfSimultaneouslyActiveSims();
+        assertFalse(mCallsManager.isDsdaCallingPossible());
+    }
+
     @SmallTest
     @Test
     public void testNoFilteringOfNetworkIdentifiedEmergencyCalls() {
@@ -2723,6 +2758,24 @@
     }
 
     /**
+     * Verify when Telephony is not available we don't try to block redirection due to the failed
+     * isEmergency check.
+     */
+    @SmallTest
+    @Test
+    public void testEmergencyCheckFailsOnRedirectionCheckCompleteDueToNoTelephony() {
+        when(mComponentContextFixture.getTelephonyManager().isEmergencyNumber(anyString()))
+                .thenThrow(new UnsupportedOperationException("Bee boop"));
+
+        Call callSpy = addSpyCall(CallState.NEW);
+        mCallsManager.onCallRedirectionComplete(callSpy, Uri.parse("tel:911"),
+                SIM_1_HANDLE_SECONDARY,
+                new GatewayInfo("foo", TEST_ADDRESS2, TEST_ADDRESS), true /* speakerphoneOn */,
+                VideoProfile.STATE_AUDIO_ONLY, false /* shouldCancelCall */, "" /* uiAction */);
+        verify(callSpy, never()).disconnect(anyString());
+    }
+
+    /**
      * Verifies that target phone account is set in startOutgoingCall. The multi-user functionality
      * is dependent on the call's phone account handle being present so this test ensures that
      * existing outgoing call flow does not break from future updates.
@@ -2824,9 +2877,9 @@
         mCallsManager.addConnectionServiceRepositoryCache(WORK_HANDLE.getComponentName(),
                 WORK_HANDLE.getUserHandle(), service);
 
-        UserManager um = mContext.getSystemService(UserManager.class);
-        when(um.isUserAdmin(anyInt())).thenReturn(false);
-        when(um.isQuietModeEnabled(eq(WORK_HANDLE.getUserHandle()))).thenReturn(false);
+        when(mMockCurrentUserManager.isAdminUser()).thenReturn(false);
+        when(mMockCurrentUserManager.isQuietModeEnabled(eq(WORK_HANDLE.getUserHandle())))
+                .thenReturn(false);
         when(mPhoneAccountRegistrar.getPhoneAccountUnchecked(eq(WORK_HANDLE)))
                 .thenReturn(WORK_ACCOUNT);
         Call newCall = mCallsManager.processIncomingCallIntent(
@@ -2845,9 +2898,9 @@
         mCallsManager.addConnectionServiceRepositoryCache(WORK_HANDLE.getComponentName(),
                 WORK_HANDLE.getUserHandle(), service);
 
-        UserManager um = mContext.getSystemService(UserManager.class);
-        when(um.isUserAdmin(anyInt())).thenReturn(true);
-        when(um.isQuietModeEnabled(eq(WORK_HANDLE.getUserHandle()))).thenReturn(true);
+        when(mMockCurrentUserManager.isAdminUser()).thenReturn(true);
+        when(mMockCurrentUserManager.isQuietModeEnabled(any(UserHandle.class)))
+                .thenReturn(true);
         when(mPhoneAccountRegistrar.getPhoneAccountUnchecked(eq(WORK_HANDLE)))
                 .thenReturn(WORK_ACCOUNT);
         Call newCall = mCallsManager.processIncomingCallIntent(
@@ -2868,8 +2921,8 @@
 
         when(mEmergencyCallHelper.isLastOutgoingEmergencyCallPAH(eq(SIM_2_HANDLE)))
                 .thenReturn(true);
-        UserManager um = mContext.getSystemService(UserManager.class);
-        when(um.isQuietModeEnabled(eq(SIM_2_HANDLE.getUserHandle()))).thenReturn(true);
+        when(mMockCurrentUserManager.isQuietModeEnabled(eq(SIM_2_HANDLE.getUserHandle())))
+                .thenReturn(true);
         Call newCall = mCallsManager.processIncomingCallIntent(
                 SIM_2_HANDLE, new Bundle(), false);
 
@@ -2887,9 +2940,9 @@
 
         when(mEmergencyCallHelper.isLastOutgoingEmergencyCallPAH(eq(WORK_HANDLE)))
                 .thenReturn(true);
-        UserManager um = mContext.getSystemService(UserManager.class);
-        when(um.isUserAdmin(anyInt())).thenReturn(false);
-        when(um.isQuietModeEnabled(eq(WORK_HANDLE.getUserHandle()))).thenReturn(false);
+        when(mMockCurrentUserManager.isAdminUser()).thenReturn(false);
+        when(mMockCurrentUserManager.isQuietModeEnabled(eq(WORK_HANDLE.getUserHandle())))
+                .thenReturn(false);
         when(mPhoneAccountRegistrar.getPhoneAccountUnchecked(eq(WORK_HANDLE)))
                 .thenReturn(WORK_ACCOUNT);
         Call newCall = mCallsManager.processIncomingCallIntent(
@@ -2910,8 +2963,8 @@
         Bundle extras = new Bundle();
         extras.putParcelable(TelecomManager.EXTRA_INCOMING_CALL_ADDRESS, TEST_ADDRESS);
         TelephonyManager tm = mContext.getSystemService(TelephonyManager.class);
-        UserManager um = mContext.getSystemService(UserManager.class);
-        when(um.isQuietModeEnabled(eq(SIM_2_HANDLE.getUserHandle()))).thenReturn(true);
+        when(mMockCurrentUserManager.isQuietModeEnabled(eq(SIM_2_HANDLE.getUserHandle())))
+                .thenReturn(true);
         when(tm.isEmergencyNumber(any(String.class))).thenReturn(true);
         Call newCall = mCallsManager.processIncomingCallIntent(
                 SIM_2_HANDLE, extras, false);
@@ -3433,18 +3486,14 @@
         when(mBlockedNumbersAdapter.shouldShowEmergencyCallNotification(any(Context.class)))
                 .thenReturn(true);
         mComponentContextFixture.getBroadcastReceivers().forEach(c -> c.onReceive(mContext,
-                new Intent(
-                        BlockedNumberContract.BlockedNumbers
-                                .ACTION_BLOCK_SUPPRESSION_STATE_CHANGED)));
+                new Intent(BlockedNumbersManager.ACTION_BLOCK_SUPPRESSION_STATE_CHANGED)));
         verify(mBlockedNumbersAdapter).updateEmergencyCallNotification(any(Context.class),
                 eq(true));
 
         when(mBlockedNumbersAdapter.shouldShowEmergencyCallNotification(any(Context.class)))
                 .thenReturn(false);
         mComponentContextFixture.getBroadcastReceivers().forEach(c -> c.onReceive(mContext,
-                new Intent(
-                        BlockedNumberContract.BlockedNumbers
-                                .ACTION_BLOCK_SUPPRESSION_STATE_CHANGED)));
+                new Intent(BlockedNumbersManager.ACTION_BLOCK_SUPPRESSION_STATE_CHANGED)));
         verify(mBlockedNumbersAdapter).updateEmergencyCallNotification(any(Context.class),
                 eq(false));
     }
@@ -3463,9 +3512,7 @@
         // WHEN
         when(mPhoneAccountRegistrar.getPhoneAccountUnchecked(any()))
                 .thenReturn(SM_W_DIFFERENT_PACKAGE_AND_USER);
-        UserManager um = mContext.getSystemService(UserManager.class);
-        when(um.isUserAdmin(eq(mCallsManager.getCurrentUserHandle().getIdentifier())))
-                .thenReturn(true);
+        when(mMockCurrentUserManager.isAdminUser()).thenReturn(true);
 
         // THEN
         mCallsManager.processIncomingCallIntent(SELF_MANAGED_W_CUSTOM_HANDLE, new Bundle(), false);
diff --git a/tests/src/com/android/server/telecom/tests/ComponentContextFixture.java b/tests/src/com/android/server/telecom/tests/ComponentContextFixture.java
index 54aaa4c..79b4cc8 100644
--- a/tests/src/com/android/server/telecom/tests/ComponentContextFixture.java
+++ b/tests/src/com/android/server/telecom/tests/ComponentContextFixture.java
@@ -73,6 +73,7 @@
 import android.os.Vibrator;
 import android.os.VibratorManager;
 import android.permission.PermissionCheckerManager;
+import android.provider.BlockedNumbersManager;
 import android.telecom.ConnectionService;
 import android.telecom.Log;
 import android.telecom.InCallService;
@@ -251,6 +252,8 @@
                     return mSensorPrivacyManager;
                 case Context.ACCESSIBILITY_SERVICE:
                     return mAccessibilityManager;
+                case Context.BLOCKED_NUMBERS_SERVICE:
+                    return mBlockedNumbersManager;
                 default:
                     return null;
             }
@@ -292,6 +295,8 @@
                 return Context.BUGREPORT_SERVICE;
             } else if (svcClass == TelecomManager.class) {
                 return Context.TELECOM_SERVICE;
+            } else if (svcClass == BlockedNumbersManager.class) {
+                return Context.BLOCKED_NUMBERS_SERVICE;
             }
             throw new UnsupportedOperationException(svcClass.getName());
         }
@@ -635,6 +640,7 @@
     private final List<BroadcastReceiver> mBroadcastReceivers = new ArrayList<>();
 
     private TelecomManager mTelecomManager = mock(TelecomManager.class);
+    private BlockedNumbersManager mBlockedNumbersManager = mock(BlockedNumbersManager.class);
 
     public ComponentContextFixture(FeatureFlags featureFlags) {
         MockitoAnnotations.initMocks(this);
@@ -837,6 +843,10 @@
         mSubscriptionManager = subscriptionManager;
     }
 
+    public SubscriptionManager getSubscriptionManager() {
+        return mSubscriptionManager;
+    }
+
     public TelephonyManager getTelephonyManager() {
         return mTelephonyManager;
     }
@@ -857,6 +867,10 @@
         return mBroadcastReceivers;
     }
 
+    public TelephonyRegistryManager getTelephonyRegistryManager() {
+        return mTelephonyRegistryManager;
+    }
+
     private void addService(String action, ComponentName name, IInterface service) {
         mComponentNamesByAction.put(action, name);
         mServiceByComponentName.put(name, service);
diff --git a/tests/src/com/android/server/telecom/tests/ConnectionServiceWrapperTest.java b/tests/src/com/android/server/telecom/tests/ConnectionServiceWrapperTest.java
new file mode 100644
index 0000000..c815e8e
--- /dev/null
+++ b/tests/src/com/android/server/telecom/tests/ConnectionServiceWrapperTest.java
@@ -0,0 +1,71 @@
+/*
+ * 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.tests;
+
+import static org.junit.Assert.assertNull;
+import static org.mockito.Mockito.mock;
+import static org.mockito.Mockito.when;
+
+import android.content.ComponentName;
+import android.os.UserHandle;
+
+import com.android.server.telecom.CallsManager;
+import com.android.server.telecom.ConnectionServiceRepository;
+import com.android.server.telecom.ConnectionServiceWrapper;
+import com.android.server.telecom.PhoneAccountRegistrar;
+import com.android.server.telecom.TelecomSystem;
+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;
+
+@RunWith(JUnit4.class)
+public class ConnectionServiceWrapperTest extends TelecomTestCase {
+    @Override
+    @Before
+    public void setUp() throws Exception {
+        super.setUp();
+    }
+
+    @Override
+    @After
+    public void tearDown() throws Exception {
+        super.tearDown();
+    }
+
+    /**
+     * Verify we don't crash when getting the last known cell id and there is no telephony.
+     */
+    @Test
+    public void testGetLastKnownCellIdWhenNoTelephony() {
+        ConnectionServiceWrapper wrapper = new ConnectionServiceWrapper(
+                ComponentName.unflattenFromString("foo/baz"),
+                mock(ConnectionServiceRepository.class),
+                mock(PhoneAccountRegistrar.class),
+                mock(CallsManager.class),
+                mContext,
+                new TelecomSystem.SyncRoot() {},
+                UserHandle.CURRENT,
+                mock(FeatureFlags.class));
+        when(mComponentContextFixture.getTelephonyManager().getLastKnownCellIdentity())
+                .thenThrow(new UnsupportedOperationException("Bee boop"));
+        assertNull(wrapper.getLastKnownCellIdentity());
+   }
+}
diff --git a/tests/src/com/android/server/telecom/tests/CreateConnectionProcessorTest.java b/tests/src/com/android/server/telecom/tests/CreateConnectionProcessorTest.java
index a9802cb..ddbc250 100644
--- a/tests/src/com/android/server/telecom/tests/CreateConnectionProcessorTest.java
+++ b/tests/src/com/android/server/telecom/tests/CreateConnectionProcessorTest.java
@@ -18,7 +18,7 @@
 
 import static junit.framework.Assert.assertFalse;
 import static junit.framework.Assert.assertTrue;
-
+import static org.junit.Assert.assertEquals;
 import static org.junit.Assert.fail;
 import static org.mockito.ArgumentMatchers.anyBoolean;
 import static org.mockito.ArgumentMatchers.anyList;
@@ -106,8 +106,8 @@
     CreateConnectionTimeout mTestCreateConnectionTimeout;
 
     private ArrayList<PhoneAccount> phoneAccounts;
-    private HashMap<Integer,Integer> mSubToSlot;
-    private HashMap<PhoneAccount,Integer> mAccountToSub;
+    private HashMap<Integer, Integer> mSubToSlot;
+    private HashMap<PhoneAccount, Integer> mAccountToSub;
 
     @Override
     @Before
@@ -130,7 +130,7 @@
                          return null;
                      }
                  }
-                ).when(mConnectionServiceFocusManager).requestFocus(any(), any());
+        ).when(mConnectionServiceFocusManager).requestFocus(any(), any());
 
         mTestCreateConnectionProcessor = new CreateConnectionProcessor(mMockCall,
                 mMockConnectionServiceRepository, mMockCreateConnectionResponse,
@@ -318,7 +318,8 @@
 
     /**
      * Ensure that when a test emergency number is being dialed and we restrict the usable
-     * PhoneAccounts using {@link PhoneAccountRegistrar#filterRestrictedPhoneAccounts(List)}, the
+     * PhoneAccounts using {@link PhoneAccountRegistrar#filterRestrictedPhoneAccounts(List)},
+     * the
      * test emergency call is sent on the filtered PhoneAccount.
      */
     @SmallTest
@@ -356,7 +357,8 @@
     }
 
     /**
-     * Ensure that when no phone accounts (visible to the user) are available for the call, we use
+     * Ensure that when no phone accounts (visible to the user) are available for the call, we
+     * use
      * an available sim from other another user (on the condition that the user has the
      * INTERACT_ACROSS_USERS permission).
      */
@@ -386,7 +388,8 @@
     }
 
     /**
-     * Ensure that the non-emergency capable PhoneAccount and the SIM manager is not chosen to place
+     * Ensure that the non-emergency capable PhoneAccount and the SIM manager is not chosen to
+     * place
      * the emergency call if there is an emergency capable PhoneAccount available as well.
      */
     @SmallTest
@@ -423,7 +426,8 @@
     }
 
     /**
-     * 1) Ensure that if there is a non-SIM PhoneAccount, it is not chosen as the Phone Account to
+     * 1) Ensure that if there is a non-SIM PhoneAccount, it is not chosen as the Phone Account
+     * to
      * dial the emergency call.
      * 2) Register multiple emergency capable PhoneAccounts. Since there is not preference, we
      * default to sending on the lowest slot.
@@ -463,8 +467,10 @@
     }
 
     /**
-     * Ensure that the call goes out on the PhoneAccount that has the CAPABILITY_EMERGENCY_PREFERRED
-     * capability, even if the user specifically chose the other emergency capable PhoneAccount.
+     * Ensure that the call goes out on the PhoneAccount that has the
+     * CAPABILITY_EMERGENCY_PREFERRED
+     * capability, even if the user specifically chose the other emergency capable
+     * PhoneAccount.
      */
     @SmallTest
     @Test
@@ -496,7 +502,8 @@
     }
 
     /**
-     * If there is no phone account with CAPABILITY_EMERGENCY_PREFERRED capability, choose the user
+     * If there is no phone account with CAPABILITY_EMERGENCY_PREFERRED capability, choose the
+     * user
      * chosen target account.
      */
     @SmallTest
@@ -570,7 +577,8 @@
     }
 
     /**
-     * If the user preferred PhoneAccount is associated with an invalid slot, place on the other,
+     * If the user preferred PhoneAccount is associated with an invalid slot, place on the
+     * other,
      * valid slot.
      */
     @SmallTest
@@ -708,7 +716,8 @@
 
     /**
      * Tests to verify that the
-     * {@link CreateConnectionProcessor#sortSimPhoneAccountsForEmergency(List, PhoneAccount)} can
+     * {@link CreateConnectionProcessor#sortSimPhoneAccountsForEmergency(List, PhoneAccount)}
+     * can
      * successfully sort without running into sort issues related to the hashcodes of the
      * PhoneAccounts.
      */
@@ -878,6 +887,24 @@
     }
 
     /**
+     * Verifies when telephony is not available that we just get invalid sub id for a phone acct.
+     */
+    @SmallTest
+    @Test
+    public void testTelephonyAdapterWhenNoTelephony() {
+        PhoneAccount telephonyAcct = makePhoneAccount("test-acct",
+                PhoneAccount.CAPABILITY_CALL_PROVIDER
+                        | PhoneAccount.CAPABILITY_PLACE_EMERGENCY_CALLS);
+
+        CreateConnectionProcessor.ITelephonyManagerAdapterImpl impl
+                = new CreateConnectionProcessor.ITelephonyManagerAdapterImpl();
+        when(mComponentContextFixture.getTelephonyManager().
+                getSubscriptionId(any(PhoneAccountHandle.class)))
+                .thenThrow(new UnsupportedOperationException("Bee boop"));
+        assertEquals(-1, impl.getSubIdForPhoneAccount(mContext, telephonyAcct));
+    }
+
+    /**
      * Generates random phone accounts.
      * @param seed random seed to use for random UUIDs; passed in for determinism.
      * @param count How many phone accounts to use.
diff --git a/tests/src/com/android/server/telecom/tests/DisconnectedCallNotifierTest.java b/tests/src/com/android/server/telecom/tests/DisconnectedCallNotifierTest.java
index 05c5071..3eacc54 100644
--- a/tests/src/com/android/server/telecom/tests/DisconnectedCallNotifierTest.java
+++ b/tests/src/com/android/server/telecom/tests/DisconnectedCallNotifierTest.java
@@ -146,6 +146,19 @@
         verify(mNotificationManager).cancelAsUser(anyString(), anyInt(), any());
     }
 
+    /**
+     * Verifies when there is no telephony available, that we'll still be able to determine a
+     * country iso.
+     */
+    @Test
+    @SmallTest
+    public void testGetCountryIsoWithNoTelephony() {
+        DisconnectedCallNotifier notifier = new DisconnectedCallNotifier(mContext, mCallsManager);
+        when(mComponentContextFixture.getTelephonyManager().getNetworkCountryIso())
+                .thenThrow(new UnsupportedOperationException("Bee boop"));
+        assertNotNull(notifier.getCurrentCountryIso(mContext));
+    }
+
     private Call createCall(DisconnectCause cause) {
         Call call = mock(Call.class);
         when(call.getDisconnectCause()).thenReturn(cause);
diff --git a/tests/src/com/android/server/telecom/tests/InCallControllerTests.java b/tests/src/com/android/server/telecom/tests/InCallControllerTests.java
index 3d99d07..6c07c79 100644
--- a/tests/src/com/android/server/telecom/tests/InCallControllerTests.java
+++ b/tests/src/com/android/server/telecom/tests/InCallControllerTests.java
@@ -154,10 +154,9 @@
     @Mock NotificationManager mNotificationManager;
     @Mock PermissionInfo mMockPermissionInfo;
     @Mock InCallController.InCallServiceInfo mInCallServiceInfo;
-    @Mock private AnomalyReporterAdapter mAnomalyReporterAdapter;
     @Mock UserManager mMockUserManager;
-    @Mock UserInfo mMockUserInfo;
-    @Mock UserInfo mMockChildUserInfo; //work profile
+    @Mock Context mMockCreateContextAsUser;
+    @Mock UserManager mMockCurrentUserManager;
 
     @Rule
     public TestRule compatChangeRule = new PlatformCompatChangeRule();
@@ -312,10 +311,14 @@
         when(mMockContext.getSystemService(eq(Context.USER_SERVICE))).thenReturn(mMockUserManager);
         when(mMockContext.getSystemService(eq(UserManager.class)))
                 .thenReturn(mMockUserManager);
+        when(mMockContext.createContextAsUser(any(UserHandle.class), eq(0)))
+                .thenReturn(mMockCreateContextAsUser);
+        when(mMockCreateContextAsUser.getSystemService(eq(UserManager.class)))
+                .thenReturn(mMockCurrentUserManager);
         // Mock user info to allow binding on user stored in the phone account (mUserHandle).
-        when(mMockUserManager.getUserInfo(anyInt())).thenReturn(mMockUserInfo);
-        when(mMockUserInfo.isManagedProfile()).thenReturn(true);
         when(mFeatureFlags.separatelyBindToBtIncallService()).thenReturn(false);
+        when(mFeatureFlags.telecomResolveHiddenDependencies()).thenReturn(true);
+        when(mMockCurrentUserManager.isManagedProfile()).thenReturn(true);
         when(mFeatureFlags.profileUserSupport()).thenReturn(false);
     }
 
@@ -525,7 +528,8 @@
         when(mMockCall.isEmergencyCall()).thenReturn(true);
         when(mMockContext.getSystemService(eq(UserManager.class)))
             .thenReturn(mMockUserManager);
-        when(mMockUserManager.isQuietModeEnabled(any(UserHandle.class))).thenReturn(false);
+        when(mMockCurrentUserManager.isQuietModeEnabled(any(UserHandle.class)))
+                .thenReturn(false);
         when(mMockCall.isIncoming()).thenReturn(false);
         when(mMockCall.getAssociatedUser()).thenReturn(mUserHandle);
         when(mMockCall.getTargetPhoneAccount()).thenReturn(PA_HANDLE);
@@ -599,7 +603,8 @@
         when(mMockCall.getTargetPhoneAccount()).thenReturn(PA_HANDLE);
         when(mMockContext.getSystemService(eq(UserManager.class)))
             .thenReturn(mMockUserManager);
-        when(mMockUserManager.isQuietModeEnabled(any(UserHandle.class))).thenReturn(true);
+        when(mMockCurrentUserManager.isQuietModeEnabled(any(UserHandle.class)))
+                .thenReturn(true);
         setupMockPackageManager(true /* default */, true /* system */, false /* external calls */);
         setupMockPackageManagerLocationPermission(SYS_PKG, false /* granted */);
 
@@ -629,7 +634,8 @@
         when(mMockCall.getTargetPhoneAccount()).thenReturn(PA_HANDLE);
         when(mMockContext.getSystemService(eq(UserManager.class)))
                 .thenReturn(mMockUserManager);
-        when(mMockUserManager.isQuietModeEnabled(any(UserHandle.class))).thenReturn(true);
+        when(mMockCurrentUserManager.isQuietModeEnabled(any(UserHandle.class)))
+                .thenReturn(true);
         setupMockPackageManager(true /* default */, true /* system */, false /* external calls */);
         setupMockPackageManagerLocationPermission(SYS_PKG, false /* granted */);
 
@@ -660,8 +666,9 @@
         when(mMockCall.getTargetPhoneAccount()).thenReturn(PA_HANDLE);
         when(mMockContext.getSystemService(eq(UserManager.class)))
                 .thenReturn(mMockUserManager);
-        when(mMockUserManager.isQuietModeEnabled(any(UserHandle.class))).thenReturn(false);
-        when(mMockUserManager.isUserAdmin(anyInt())).thenReturn(false);
+        when(mMockCurrentUserManager.isQuietModeEnabled(any(UserHandle.class)))
+                .thenReturn(false);
+        when(mMockCurrentUserManager.isAdminUser()).thenReturn(false);
         setupMockPackageManager(true /* default */, true /* system */, false /* external calls */);
         setupMockPackageManagerLocationPermission(SYS_PKG, false /* granted */);
 
@@ -688,8 +695,9 @@
         when(mMockCall.getAssociatedUser()).thenReturn(DUMMY_USER_HANDLE);
         when(mMockContext.getSystemService(eq(UserManager.class)))
             .thenReturn(mMockUserManager);
-        when(mMockUserManager.isQuietModeEnabled(any(UserHandle.class))).thenReturn(false);
-        when(mMockUserManager.isUserAdmin(anyInt())).thenReturn(true);
+        when(mMockCurrentUserManager.isQuietModeEnabled(any(UserHandle.class)))
+                .thenReturn(false);
+        when(mMockCurrentUserManager.isAdminUser()).thenReturn(true);
         setupMockPackageManager(true /* default */, true /* system */, false /* external calls */);
         setupMockPackageManagerLocationPermission(SYS_PKG, false /* granted */);
 
@@ -723,7 +731,8 @@
         when(mMockCall.isEmergencyCall()).thenReturn(true);
         when(mMockContext.getSystemService(eq(UserManager.class)))
             .thenReturn(mMockUserManager);
-        when(mMockUserManager.isQuietModeEnabled(any(UserHandle.class))).thenReturn(false);
+        when(mMockCurrentUserManager.isQuietModeEnabled(any(UserHandle.class)))
+                .thenReturn(false);
         when(mMockCall.isIncoming()).thenReturn(false);
         when(mMockCall.getAssociatedUser()).thenReturn(mUserHandle);
         when(mMockCall.getTargetPhoneAccount()).thenReturn(PA_HANDLE);
@@ -1001,7 +1010,8 @@
         when(mMockCall.isEmergencyCall()).thenReturn(true);
         when(mMockContext.getSystemService(eq(UserManager.class)))
                 .thenReturn(mMockUserManager);
-        when(mMockUserManager.isQuietModeEnabled(any(UserHandle.class))).thenReturn(false);
+        when(mMockCurrentUserManager.isQuietModeEnabled(any(UserHandle.class)))
+                .thenReturn(false);
         when(mMockCall.isIncoming()).thenReturn(false);
         when(mMockCall.getTargetPhoneAccount()).thenReturn(PA_HANDLE);
         when(mMockCall.getIntentExtras()).thenReturn(callExtras);
@@ -1111,7 +1121,8 @@
         when(mMockCall.isEmergencyCall()).thenReturn(true);
         when(mMockContext.getSystemService(eq(UserManager.class)))
                 .thenReturn(mMockUserManager);
-        when(mMockUserManager.isQuietModeEnabled(any(UserHandle.class))).thenReturn(false);
+        when(mMockCurrentUserManager.isQuietModeEnabled(any(UserHandle.class)))
+                .thenReturn(false);
         when(mMockCall.isIncoming()).thenReturn(false);
         when(mMockCall.getAssociatedUser()).thenReturn(mUserHandle);
         when(mMockCall.getTargetPhoneAccount()).thenReturn(PA_HANDLE);
@@ -1787,7 +1798,7 @@
         // Force the difference between the phone account user and current user. This is supposed to
         // simulate a secondary user placing a call over an unassociated sim.
         assertFalse(mUserHandle.equals(UserHandle.USER_CURRENT));
-        when(mMockUserInfo.isManagedProfile()).thenReturn(false);
+        when(mMockCurrentUserManager.isManagedProfile()).thenReturn(false);
 
         mInCallController.bindToServices(mMockCall, false);
 
@@ -1856,9 +1867,7 @@
         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(mMockCurrentUserManager.isManagedProfile()).thenReturn(false);
         when(mMockCall.getAssociatedUser()).thenReturn(workUser);
         setupFakeSystemCall(mMockSystemCall1, 1);
         setupFakeSystemCall(mMockSystemCall2, 2);
@@ -1924,21 +1933,9 @@
         when(mMockChildUserCall.visibleToInCallService()).thenReturn(true);
 
         //Setup up parent and child/work profile relation
-        when(mMockUserInfo.getUserHandle()).thenReturn(mParentUserHandle);
-        when(mMockChildUserInfo.getUserHandle()).thenReturn(mChildUserHandle);
-        when(mMockUserInfo.isManagedProfile()).thenReturn(false);
-        when(mMockChildUserInfo.isManagedProfile()).thenReturn(false);
         when(mMockChildUserCall.getAssociatedUser()).thenReturn(mChildUserHandle);
         when(mMockCallsManager.getCurrentUserHandle()).thenReturn(mParentUserHandle);
-        when(mMockUserManager.getProfileParent(mChildUserHandle.getIdentifier())).thenReturn(
-                mMockUserInfo);
         when(mMockUserManager.getProfileParent(mChildUserHandle)).thenReturn(mParentUserHandle);
-        when(mMockUserManager.getUserInfo(eq(mParentUserHandle.getIdentifier()))).thenReturn(
-                mMockUserInfo);
-        when(mMockUserManager.getUserInfo(eq(mChildUserHandle.getIdentifier()))).thenReturn(
-                mMockChildUserInfo);
-        when(mMockUserManager.isManagedProfile(mParentUserHandle.getIdentifier())).thenReturn(
-                false);
         when(mFeatureFlags.profileUserSupport()).thenReturn(true);
     }
 
@@ -1974,6 +1971,8 @@
 
     @Test
     public void testSeparatelyBluetoothService() {
+        setupMocks(false /* isExternalCall */);
+        setupMockPackageManager(true /* default */, true /* system */, false /* external calls */);
         Intent expectedIntent = new Intent(InCallService.SERVICE_INTERFACE);
         expectedIntent.setPackage(mDefaultDialerCache.getBTInCallServicePackage());
         LinkedList<ResolveInfo> resolveInfo = new LinkedList<ResolveInfo>();
diff --git a/tests/src/com/android/server/telecom/tests/MissedCallNotifierImplTest.java b/tests/src/com/android/server/telecom/tests/MissedCallNotifierImplTest.java
index 61e8347..1776411 100644
--- a/tests/src/com/android/server/telecom/tests/MissedCallNotifierImplTest.java
+++ b/tests/src/com/android/server/telecom/tests/MissedCallNotifierImplTest.java
@@ -692,6 +692,25 @@
                 nullable(Notification.class), eq(PRIMARY_USER));
     }
 
+    /**
+     * Ensure when Telephony is not present on a device and getNetworkCountryIso throws an
+     * unsupported operation exception that we will still fallback to the device locale.
+     */
+    @SmallTest
+    @Test
+    public void testGetCountryIsoWithNoTelephony() {
+        Notification.Builder builder1 = makeNotificationBuilder("builder1");
+        MissedCallNotifierImpl.NotificationBuilderFactory fakeBuilderFactory =
+                makeNotificationBuilderFactory(builder1);
+        MissedCallNotifierImpl missedCallNotifier = new MissedCallNotifierImpl(mContext,
+                mPhoneAccountRegistrar, mDefaultDialerCache, fakeBuilderFactory,
+                mDeviceIdleControllerAdapter, mFeatureFlags);
+
+        when(mComponentContextFixture.getTelephonyManager().getNetworkCountryIso())
+                .thenThrow(new UnsupportedOperationException("Bee boop"));
+        assertNotNull(missedCallNotifier.getCurrentCountryIso(mContext));
+    }
+
     private Notification.Builder makeNotificationBuilder(String label) {
         Notification.Builder builder = spy(new Notification.Builder(mContext));
         Notification notification = mock(Notification.class);
diff --git a/tests/src/com/android/server/telecom/tests/PhoneAccountRegistrarTest.java b/tests/src/com/android/server/telecom/tests/PhoneAccountRegistrarTest.java
index 0ce5836..9d87aaf 100644
--- a/tests/src/com/android/server/telecom/tests/PhoneAccountRegistrarTest.java
+++ b/tests/src/com/android/server/telecom/tests/PhoneAccountRegistrarTest.java
@@ -29,6 +29,7 @@
 import static org.mockito.ArgumentMatchers.eq;
 import static org.mockito.Mockito.clearInvocations;
 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;
@@ -138,7 +139,7 @@
                 .thenReturn(TEST_LABEL);
         mRegistrar = new PhoneAccountRegistrar(
                 mComponentContextFixture.getTestDouble().getApplicationContext(), mLock, FILE_NAME,
-                mDefaultDialerCache, mAppLabelProxy, mTelephonyFeatureFlags);
+                mDefaultDialerCache, mAppLabelProxy, mTelephonyFeatureFlags, mFeatureFlags);
         when(mFeatureFlags.onlyUpdateTelephonyOnValidSubIds()).thenReturn(false);
         when(mTelephonyFeatureFlags.workProfileApiSplit()).thenReturn(false);
     }
@@ -159,12 +160,14 @@
     public void testPhoneAccountHandle() throws Exception {
         PhoneAccountHandle input = new PhoneAccountHandle(new ComponentName("pkg0", "cls0"), "id0");
         PhoneAccountHandle result = roundTripXml(this, input,
-                PhoneAccountRegistrar.sPhoneAccountHandleXml, mContext, mTelephonyFeatureFlags);
+                PhoneAccountRegistrar.sPhoneAccountHandleXml, mContext,
+                mTelephonyFeatureFlags, mFeatureFlags);
         assertPhoneAccountHandleEquals(input, result);
 
         PhoneAccountHandle inputN = new PhoneAccountHandle(new ComponentName("pkg0", "cls0"), null);
         PhoneAccountHandle resultN = roundTripXml(this, inputN,
-                PhoneAccountRegistrar.sPhoneAccountHandleXml, mContext, mTelephonyFeatureFlags);
+                PhoneAccountRegistrar.sPhoneAccountHandleXml, mContext,
+                mTelephonyFeatureFlags, mFeatureFlags);
         Log.i(this, "inputN = %s, resultN = %s", inputN, resultN);
         assertPhoneAccountHandleEquals(inputN, resultN);
     }
@@ -187,7 +190,7 @@
                 .setIsEnabled(true)
                 .build();
         PhoneAccount result = roundTripXml(this, input, PhoneAccountRegistrar.sPhoneAccountXml,
-                mContext, mTelephonyFeatureFlags);
+                mContext, mTelephonyFeatureFlags, mFeatureFlags);
 
         assertPhoneAccountEquals(input, result);
     }
@@ -198,7 +201,7 @@
         doReturn(true).when(mTelephonyFeatureFlags).simultaneousCallingIndications();
         // workaround: UserManager converts the user to a serial and back, we need to mock this
         // behavior, unfortunately: USER_HANDLE_10 <-> 10L
-        UserManager userManager = UserManager.get(mContext);
+        UserManager userManager = mContext.getSystemService(UserManager.class);
         doReturn(10L).when(userManager).getSerialNumberForUser(eq(USER_HANDLE_10));
         doReturn(USER_HANDLE_10).when(userManager).getUserForSerialNumber(eq(10L));
         Bundle testBundle = new Bundle();
@@ -222,7 +225,7 @@
                 .setSimultaneousCallingRestriction(restriction)
                 .build();
         PhoneAccount result = roundTripXml(this, input, PhoneAccountRegistrar.sPhoneAccountXml,
-                mContext, mTelephonyFeatureFlags);
+                mContext, mTelephonyFeatureFlags, mFeatureFlags);
 
         assertPhoneAccountEquals(input, result);
     }
@@ -234,7 +237,7 @@
         doReturn(true).when(mTelephonyFeatureFlags).simultaneousCallingIndications();
         // workaround: UserManager converts the user to a serial and back, we need to mock this
         // behavior, unfortunately: USER_HANDLE_10 <-> 10L
-        UserManager userManager = UserManager.get(mContext);
+        UserManager userManager = mContext.getSystemService(UserManager.class);
         doReturn(10L).when(userManager).getSerialNumberForUser(eq(USER_HANDLE_10));
         doReturn(USER_HANDLE_10).when(userManager).getUserForSerialNumber(eq(10L));
         Bundle testBundle = new Bundle();
@@ -262,7 +265,7 @@
         // Simulate turning off the flag after reboot
         doReturn(false).when(mTelephonyFeatureFlags).simultaneousCallingIndications();
         PhoneAccount result = fromXml(xmlData, PhoneAccountRegistrar.sPhoneAccountXml, mContext,
-                mTelephonyFeatureFlags);
+                mTelephonyFeatureFlags, mFeatureFlags);
 
         assertNotNull(result);
         assertFalse(result.hasSimultaneousCallingRestriction());
@@ -292,7 +295,7 @@
         // Simulate turning on the flag after reboot
         doReturn(true).when(mTelephonyFeatureFlags).simultaneousCallingIndications();
         PhoneAccount result = fromXml(xmlData, PhoneAccountRegistrar.sPhoneAccountXml, mContext,
-                mTelephonyFeatureFlags);
+                mTelephonyFeatureFlags, mFeatureFlags);
 
         assertPhoneAccountEquals(input, result);
     }
@@ -364,13 +367,14 @@
     public void testDefaultPhoneAccountHandleEmptyGroup() throws Exception {
         DefaultPhoneAccountHandle input = new DefaultPhoneAccountHandle(Process.myUserHandle(),
                 makeQuickAccountHandle("i1"), "");
-        when(UserManager.get(mContext).getSerialNumberForUser(input.userHandle))
+        UserManager userManager = mContext.getSystemService(UserManager.class);
+        when(userManager.getSerialNumberForUser(input.userHandle))
                 .thenReturn(0L);
-        when(UserManager.get(mContext).getUserForSerialNumber(0L))
+        when(userManager.getUserForSerialNumber(0L))
                 .thenReturn(input.userHandle);
         DefaultPhoneAccountHandle result = roundTripXml(this, input,
                 PhoneAccountRegistrar.sDefaultPhoneAccountHandleXml, mContext,
-                mTelephonyFeatureFlags);
+                mTelephonyFeatureFlags, mFeatureFlags);
 
         assertDefaultPhoneAccountHandleEquals(input, result);
     }
@@ -400,7 +404,7 @@
                 .setExtras(testBundle)
                 .build();
         PhoneAccount result = roundTripXml(this, input, PhoneAccountRegistrar.sPhoneAccountXml,
-                mContext, mTelephonyFeatureFlags);
+                mContext, mTelephonyFeatureFlags, mFeatureFlags);
 
         Bundle extras = result.getExtras();
         assertFalse(extras.keySet().contains("EXTRA_STR2"));
@@ -414,7 +418,7 @@
     public void testState() throws Exception {
         PhoneAccountRegistrar.State input = makeQuickState();
         PhoneAccountRegistrar.State result = roundTripXml(this, input,
-                PhoneAccountRegistrar.sStateXml, mContext, mTelephonyFeatureFlags);
+                PhoneAccountRegistrar.sStateXml, mContext, mTelephonyFeatureFlags, mFeatureFlags);
         assertStateEquals(input, result);
     }
 
@@ -1245,6 +1249,7 @@
         // GIVEN
         mComponentContextFixture.addConnectionService(makeQuickConnectionServiceComponentName(),
                 Mockito.mock(IConnectionService.class));
+        UserManager userManager = mContext.getSystemService(UserManager.class);
 
         List<UserHandle> users = Arrays.asList(new UserHandle(0),
                 new UserHandle(1000));
@@ -1271,10 +1276,10 @@
         when(mContext.getPackageManager().getPackageInfo(PACKAGE_2, 0))
                 .thenThrow(new PackageManager.NameNotFoundException());
 
-        when(UserManager.get(mContext).getSerialNumberForUser(users.get(0)))
+        when(userManager.getSerialNumberForUser(users.get(0)))
                 .thenReturn(0L);
 
-        when(UserManager.get(mContext).getSerialNumberForUser(users.get(1)))
+        when(userManager.getSerialNumberForUser(users.get(1)))
                 .thenReturn(-1L);
 
         // THEN
@@ -1865,7 +1870,7 @@
                 makeQuickAccountHandle(TEST_ID)).setIcon(mockIcon);
         try {
             // WHEN
-            Mockito.doThrow(new IOException())
+            doThrow(new IOException())
                     .when(mockIcon).writeToStream(any(OutputStream.class));
             //THEN
             mRegistrar.enforceIconSizeLimit(builder.build());
@@ -1961,6 +1966,36 @@
         assertTrue(accountsForUser.contains(accountForAll));
     }
 
+    @SmallTest
+    @Test
+    public void testGetSubscriptionIdForPhoneAccountWhenNoTelephony() throws Exception {
+        mComponentContextFixture.addConnectionService(makeQuickConnectionServiceComponentName(),
+                Mockito.mock(IConnectionService.class));
+
+        PhoneAccount simAccount =
+                makeQuickAccountBuilder("simzor", 1, null)
+                        .setCapabilities(
+                                PhoneAccount.CAPABILITY_CALL_PROVIDER
+                                        | PhoneAccount.CAPABILITY_SIM_SUBSCRIPTION)
+                        .setIsEnabled(true)
+                        .build();
+        registerAndEnableAccount(simAccount);
+        when(mComponentContextFixture.getTelephonyManager()
+                .getSubscriptionId(any(PhoneAccountHandle.class)))
+                .thenThrow(new UnsupportedOperationException("Bee-boop"));
+        assertEquals(SubscriptionManager.INVALID_SUBSCRIPTION_ID,
+                mRegistrar.getSubscriptionIdForPhoneAccount(simAccount.getAccountHandle()));
+
+        // One more thing; we'll test
+        doThrow(new UnsupportedOperationException("Bee boop!"))
+                .when(mComponentContextFixture.getSubscriptionManager())
+                .setDefaultVoiceSubscriptionId(anyInt());
+        mRegistrar.setUserSelectedOutgoingPhoneAccount(simAccount.getAccountHandle(),
+                simAccount.getAccountHandle().getUserHandle());
+
+        // There is nothing to verify, we just want to ensure that we didn't crash.
+    }
+
     private static PhoneAccount.Builder makeBuilderWithBindCapabilities(PhoneAccountHandle handle) {
         return new PhoneAccount.Builder(handle, TEST_LABEL)
                 .setCapabilities(PhoneAccount.CAPABILITY_SUPPORTS_TRANSACTIONAL_OPERATIONS);
@@ -2080,7 +2115,8 @@
             T input,
             PhoneAccountRegistrar.XmlSerialization<T> xml,
             Context context,
-            FeatureFlags telephonyFeatureFlags)
+            FeatureFlags telephonyFeatureFlags,
+            com.android.server.telecom.flags.FeatureFlags telecomFeatureFlags)
             throws Exception {
         Log.d(self, "Input = %s", input);
 
@@ -2088,7 +2124,7 @@
 
         Log.i(self, "====== XML data ======\n%s", new String(data));
 
-        T result = fromXml(data, xml, context, telephonyFeatureFlags);
+        T result = fromXml(data, xml, context, telephonyFeatureFlags, telecomFeatureFlags);
 
         Log.i(self, "result = " + result);
 
@@ -2106,11 +2142,13 @@
     }
 
     private static <T> T fromXml(byte[] data, PhoneAccountRegistrar.XmlSerialization<T> xml,
-            Context context, FeatureFlags telephonyFeatureFlags) throws Exception {
+            Context context, FeatureFlags telephonyFeatureFlags,
+            com.android.server.telecom.flags.FeatureFlags telecomFeatureFlags) throws Exception {
         XmlPullParser parser = Xml.newPullParser();
         parser.setInput(new BufferedInputStream(new ByteArrayInputStream(data)), null);
         parser.nextTag();
-        return xml.readFromXml(parser, MAX_VERSION, context, telephonyFeatureFlags);
+        return xml.readFromXml(parser, MAX_VERSION, context,
+                telephonyFeatureFlags, telecomFeatureFlags);
 
     }
 
@@ -2208,6 +2246,7 @@
     }
 
     private PhoneAccountRegistrar.State makeQuickStateWithTelephonyPhoneAccountHandle() {
+        UserManager userManager = mContext.getSystemService(UserManager.class);
         PhoneAccountRegistrar.State s = new PhoneAccountRegistrar.State();
         s.accounts.add(makeQuickAccount("id0", 0));
         s.accounts.add(makeQuickAccount("id1", 1));
@@ -2216,9 +2255,9 @@
                 "com.android.phone",
                         "com.android.services.telephony.TelephonyConnectionService"), "id0");
         UserHandle userHandle = phoneAccountHandle.getUserHandle();
-        when(UserManager.get(mContext).getSerialNumberForUser(userHandle))
+        when(userManager.getSerialNumberForUser(userHandle))
             .thenReturn(0L);
-        when(UserManager.get(mContext).getUserForSerialNumber(0L))
+        when(userManager.getUserForSerialNumber(0L))
             .thenReturn(userHandle);
         s.defaultOutgoingAccountHandles
             .put(userHandle, new DefaultPhoneAccountHandle(userHandle, phoneAccountHandle,
@@ -2227,6 +2266,7 @@
     }
 
     private PhoneAccountRegistrar.State makeQuickState() {
+        UserManager userManager = mContext.getSystemService(UserManager.class);
         PhoneAccountRegistrar.State s = new PhoneAccountRegistrar.State();
         s.accounts.add(makeQuickAccount("id0", 0));
         s.accounts.add(makeQuickAccount("id1", 1));
@@ -2234,9 +2274,9 @@
         PhoneAccountHandle phoneAccountHandle = new PhoneAccountHandle(
                 new ComponentName("pkg0", "cls0"), "id0");
         UserHandle userHandle = phoneAccountHandle.getUserHandle();
-        when(UserManager.get(mContext).getSerialNumberForUser(userHandle))
+        when(userManager.getSerialNumberForUser(userHandle))
                 .thenReturn(0L);
-        when(UserManager.get(mContext).getUserForSerialNumber(0L))
+        when(userManager.getUserForSerialNumber(0L))
                 .thenReturn(userHandle);
         s.defaultOutgoingAccountHandles
                 .put(userHandle, new DefaultPhoneAccountHandle(userHandle, phoneAccountHandle,
diff --git a/tests/src/com/android/server/telecom/tests/PhoneStateBroadcasterTest.java b/tests/src/com/android/server/telecom/tests/PhoneStateBroadcasterTest.java
new file mode 100644
index 0000000..b18c2ce
--- /dev/null
+++ b/tests/src/com/android/server/telecom/tests/PhoneStateBroadcasterTest.java
@@ -0,0 +1,125 @@
+/*
+ * 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.tests;
+
+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.never;
+import static org.mockito.Mockito.verify;
+import static org.mockito.Mockito.when;
+
+import android.content.ComponentName;
+import android.net.Uri;
+import android.telecom.PhoneAccountHandle;
+import android.telephony.SubscriptionManager;
+import android.telephony.emergency.EmergencyNumber;
+import android.util.ArrayMap;
+
+import com.android.server.telecom.Call;
+import com.android.server.telecom.CallsManager;
+import com.android.server.telecom.PhoneStateBroadcaster;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+import java.util.Arrays;
+import java.util.Collections;
+import java.util.List;
+import java.util.Map;
+
+@RunWith(JUnit4.class)
+public class PhoneStateBroadcasterTest extends TelecomTestCase {
+    @Override
+    @Before
+    public void setUp() throws Exception {
+        super.setUp();
+    }
+
+    @Override
+    @After
+    public void tearDown() throws Exception {
+        super.tearDown();
+    }
+
+    /**
+     * Tests behavior where FEATURE_TELEPHONY_CALLING is not available, but
+     * FEATURE_TELEPHONY_SUBSCRIPTION is; in this case we can't detect that the number is emergency
+     * so we will not bother sending out anything.
+     */
+    @Test
+    public void testNotifyOutgoingEmergencyCallWithNoTelephonyCalling() {
+        CallsManager cm = mock(CallsManager.class);
+        when(cm.getContext()).thenReturn(mContext);
+        when(mComponentContextFixture.getTelephonyManager().isEmergencyNumber(anyString()))
+                .thenThrow(new UnsupportedOperationException("Bee boop"));
+        PhoneStateBroadcaster psb = new PhoneStateBroadcaster(cm);
+
+        Call call = mock(Call.class);
+        when(call.isExternalCall()).thenReturn(false);
+        when(call.isEmergencyCall()).thenReturn(true);
+        when(call.isIncoming()).thenReturn(false);
+        when(call.getHandle()).thenReturn(Uri.parse("tel:911"));
+
+        psb.onCallAdded(call);
+        verify(mComponentContextFixture.getTelephonyRegistryManager(), never())
+                .notifyOutgoingEmergencyCall(anyInt(), anyInt(), any(EmergencyNumber.class));
+    }
+
+    /**
+     * Tests behavior where FEATURE_TELEPHONY_CALLING is available, but
+     * FEATURE_TELEPHONY_SUBSCRIPTION is; in this case we can detect that this is an emergency
+     * call, but we can't figure out any of the subscription parameters.  It is doubtful we'd ever
+     * see this in practice since technically FEATURE_TELEPHONY_CALLING needs
+     * FEATURE_TELEPHONY_SUBSCRIPTION.
+     */
+    @Test
+    public void testNotifyOutgoingEmergencyCallWithNoTelephonySubscription() {
+        CallsManager cm = mock(CallsManager.class);
+        when(cm.getContext()).thenReturn(mContext);
+        Map<Integer, List<EmergencyNumber>> nums = new ArrayMap<Integer, List<EmergencyNumber>>();
+        nums.put(SubscriptionManager.DEFAULT_SUBSCRIPTION_ID,
+                Arrays.asList(new EmergencyNumber("911", "US", null, 0, Collections.EMPTY_LIST,
+                        0, 0)));
+        when(mComponentContextFixture.getTelephonyManager().getEmergencyNumberList())
+                .thenReturn(nums);
+        when(mComponentContextFixture.getTelephonyManager().getSubscriptionId(any(
+                        PhoneAccountHandle.class)))
+                .thenThrow(new UnsupportedOperationException("Bee boop"));
+        PhoneStateBroadcaster psb = new PhoneStateBroadcaster(cm);
+
+        Call call = mock(Call.class);
+        when(call.isExternalCall()).thenReturn(false);
+        when(call.isEmergencyCall()).thenReturn(true);
+        when(call.isIncoming()).thenReturn(false);
+        when(call.getHandle()).thenReturn(Uri.parse("tel:911"));
+        when(call.getTargetPhoneAccount()).thenReturn(new PhoneAccountHandle(
+                ComponentName.unflattenFromString("foo/bar"), "90210"));
+
+        psb.onCallAdded(call);
+        verify(mComponentContextFixture.getTelephonyRegistryManager())
+                .notifyOutgoingEmergencyCall(eq(SubscriptionManager.INVALID_SIM_SLOT_INDEX),
+                        eq(SubscriptionManager.INVALID_SUBSCRIPTION_ID),
+                        any(EmergencyNumber.class));
+    }
+}
diff --git a/tests/src/com/android/server/telecom/tests/TelecomServiceImplTest.java b/tests/src/com/android/server/telecom/tests/TelecomServiceImplTest.java
index a36e8ea..d1dd20c 100644
--- a/tests/src/com/android/server/telecom/tests/TelecomServiceImplTest.java
+++ b/tests/src/com/android/server/telecom/tests/TelecomServiceImplTest.java
@@ -2092,6 +2092,23 @@
                 mTSIBinder.getLine1Number(TEL_PA_HANDLE_CURRENT, DEFAULT_DIALER_PACKAGE, null));
     }
 
+    /**
+     * Verify that when Telephony is not present that getLine1Number returns null as expected.
+     * @throws Exception
+     */
+    @SmallTest
+    @Test
+    public void testGetLine1NumberWithNoTelephony() throws Exception {
+        setupGetLine1NumberTest();
+        grantPermissionAndAppOp(READ_PHONE_NUMBERS, AppOpsManager.OPSTR_READ_PHONE_NUMBERS);
+        TelephonyManager mockTelephonyManager =
+                (TelephonyManager) mContext.getSystemService(Context.TELEPHONY_SERVICE);
+        when(mockTelephonyManager.getLine1Number()).thenThrow(
+                new UnsupportedOperationException("Bee-boop"));
+
+        assertNull(mTSIBinder.getLine1Number(TEL_PA_HANDLE_CURRENT, DEFAULT_DIALER_PACKAGE, null));
+    }
+
     private String setupGetLine1NumberTest() throws Exception {
         int subId = 58374;
         String line1Number = "9482752023479";
diff --git a/tests/src/com/android/server/telecom/tests/TelecomSystemTest.java b/tests/src/com/android/server/telecom/tests/TelecomSystemTest.java
index 57802e3..a8663d6 100644
--- a/tests/src/com/android/server/telecom/tests/TelecomSystemTest.java
+++ b/tests/src/com/android/server/telecom/tests/TelecomSystemTest.java
@@ -803,7 +803,7 @@
 
         final UserHandle userHandle = initiatingUser;
         Context localAppContext = mComponentContextFixture.getTestDouble().getApplicationContext();
-        new UserCallIntentProcessor(localAppContext, userHandle).processIntent(
+        new UserCallIntentProcessor(localAppContext, userHandle, mFeatureFlags).processIntent(
                 actionCallIntent, null, false, true /* hasCallAppOp*/, false /* isLocal */);
         // Wait for handler to start CallerInfo lookup.
         waitForHandlerAction(new Handler(Looper.getMainLooper()), TEST_TIMEOUT);
diff --git a/tests/src/com/android/server/telecom/tests/TelephonyUtilTest.java b/tests/src/com/android/server/telecom/tests/TelephonyUtilTest.java
new file mode 100644
index 0000000..207da71
--- /dev/null
+++ b/tests/src/com/android/server/telecom/tests/TelephonyUtilTest.java
@@ -0,0 +1,57 @@
+/*
+ * 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.tests;
+
+import static org.junit.Assert.assertFalse;
+import static org.mockito.ArgumentMatchers.anyString;
+import static org.mockito.Mockito.when;
+
+import com.android.server.telecom.TelephonyUtil;
+
+import android.net.Uri;
+
+import org.junit.After;
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.junit.runners.JUnit4;
+
+@RunWith(JUnit4.class)
+public class TelephonyUtilTest extends TelecomTestCase {
+    @Override
+    @Before
+    public void setUp() throws Exception {
+        super.setUp();
+    }
+
+    @Override
+    @After
+    public void tearDown() throws Exception {
+        super.tearDown();
+    }
+
+    /**
+     * Verifies that the helper method shouldProcessAsEmergency does not crash when telephony is not
+     * present and returns "false" instead.
+     */
+    @Test
+    public void testShouldProcessAsEmergencyWithNoTelephonyCalling() {
+        when(mComponentContextFixture.getTelephonyManager().isEmergencyNumber(anyString()))
+                .thenThrow(new UnsupportedOperationException("Bee boop"));
+        assertFalse(TelephonyUtil.shouldProcessAsEmergency(mContext, Uri.parse("tel:911")));
+    }
+}
diff --git a/tests/src/com/android/server/telecom/tests/TransactionTests.java b/tests/src/com/android/server/telecom/tests/TransactionTests.java
index e58c6c4..b5a0c26 100644
--- a/tests/src/com/android/server/telecom/tests/TransactionTests.java
+++ b/tests/src/com/android/server/telecom/tests/TransactionTests.java
@@ -17,11 +17,13 @@
 package com.android.server.telecom.tests;
 
 import static org.mockito.ArgumentMatchers.any;
+import static org.mockito.ArgumentMatchers.anyString;
 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.timeout;
 import static org.mockito.Mockito.times;
 import static org.mockito.Mockito.verify;
 import static org.mockito.Mockito.isA;
@@ -61,6 +63,7 @@
 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.TransactionManager;
 import com.android.server.telecom.voip.VerifyCallStateChangeTransaction;
 import com.android.server.telecom.voip.VoipCallTransactionResult;
 
@@ -271,27 +274,24 @@
      */
     @SmallTest
     @Test
-    public void testCallStateChangeTimesOut()
-            throws ExecutionException, InterruptedException, TimeoutException {
+    public void testCallStateChangeTimesOut() {
         when(mFeatureFlags.transactionalCsVerifier()).thenReturn(true);
-        VerifyCallStateChangeTransaction t = new VerifyCallStateChangeTransaction(mCallsManager,
-                mMockCall1, CallState.ON_HOLD, true);
+        VerifyCallStateChangeTransaction t = new VerifyCallStateChangeTransaction(
+                mLock, mMockCall1, CallState.ON_HOLD);
+        TransactionManager.TransactionCompleteListener listener =
+                mock(TransactionManager.TransactionCompleteListener.class);
+        t.setCompleteListener(listener);
         // 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);
+        t.timeout();
 
         // 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(listener).onTransactionTimeout(anyString());
         verify(mMockCall1, atLeastOnce()).removeCallStateListener(any());
-        verify(mCallsManager, times(1)).markCallAsDisconnected(eq(mMockCall1), any());
-        verify(mCallsManager, times(1)).markCallAsRemoved(eq(mMockCall1));
     }
 
     /**
@@ -303,25 +303,23 @@
     public void testCallStateIsSuccessfullyChanged()
             throws ExecutionException, InterruptedException, TimeoutException {
         when(mFeatureFlags.transactionalCsVerifier()).thenReturn(true);
-        VerifyCallStateChangeTransaction t = new VerifyCallStateChangeTransaction(mCallsManager,
-                mMockCall1, CallState.ON_HOLD, true);
+        VerifyCallStateChangeTransaction t = new VerifyCallStateChangeTransaction(
+                mLock, mMockCall1, CallState.ON_HOLD);
         // WHEN
         setupHoldableCall();
 
         // simulate the transaction being processed and the setOnHold() being called / state change
         t.processTransaction(null);
+        doReturn(CallState.ON_HOLD).when(mMockCall1).getState();
         t.getCallStateListenerImpl().onCallStateChanged(CallState.ON_HOLD);
-        when(mMockCall1.getState()).thenReturn(CallState.ON_HOLD);
+        t.finish(null);
+
 
         // 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) {
diff --git a/tests/src/com/android/server/telecom/tests/VoipCallTransactionTest.java b/tests/src/com/android/server/telecom/tests/VoipCallTransactionTest.java
index b7848a2..30cfc2e 100644
--- a/tests/src/com/android/server/telecom/tests/VoipCallTransactionTest.java
+++ b/tests/src/com/android/server/telecom/tests/VoipCallTransactionTest.java
@@ -61,6 +61,7 @@
         private long mSleepTime;
         private String mName;
         private int mType;
+        public boolean isFinished = false;
 
         public TestVoipCallTransaction(String name, long sleepTime, int type) {
             super(VoipCallTransactionTest.this.mLock);
@@ -96,6 +97,11 @@
             }, mSleepTime);
             return resultFuture;
         }
+
+        @Override
+        public void finishTransaction() {
+            isFinished = true;
+        }
     }
 
     @Override
@@ -109,7 +115,6 @@
     @Override
     @After
     public void tearDown() throws Exception {
-        Log.i("Grace", mLog.toString());
         mTransactionManager.clear();
         super.tearDown();
     }
@@ -119,11 +124,11 @@
     public void testSerialTransactionSuccess()
             throws ExecutionException, InterruptedException, TimeoutException {
         List<VoipCallTransaction> subTransactions = new ArrayList<>();
-        VoipCallTransaction t1 = new TestVoipCallTransaction("t1", 1000L,
+        TestVoipCallTransaction t1 = new TestVoipCallTransaction("t1", 1000L,
                 TestVoipCallTransaction.SUCCESS);
-        VoipCallTransaction t2 = new TestVoipCallTransaction("t2", 1000L,
+        TestVoipCallTransaction t2 = new TestVoipCallTransaction("t2", 1000L,
                 TestVoipCallTransaction.SUCCESS);
-        VoipCallTransaction t3 = new TestVoipCallTransaction("t3", 1000L,
+        TestVoipCallTransaction t3 = new TestVoipCallTransaction("t3", 1000L,
                 TestVoipCallTransaction.SUCCESS);
         subTransactions.add(t1);
         subTransactions.add(t2);
@@ -137,6 +142,7 @@
         assertEquals(VoipCallTransactionResult.RESULT_SUCCEED,
                 resultFuture.get(5000L, TimeUnit.MILLISECONDS).getResult());
         assertEquals(expectedLog, mLog.toString());
+        verifyTransactionsFinished(t1, t2, t3);
     }
 
     @SmallTest
@@ -144,11 +150,11 @@
     public void testSerialTransactionFailed()
             throws ExecutionException, InterruptedException, TimeoutException {
         List<VoipCallTransaction> subTransactions = new ArrayList<>();
-        VoipCallTransaction t1 = new TestVoipCallTransaction("t1", 1000L,
+        TestVoipCallTransaction t1 = new TestVoipCallTransaction("t1", 1000L,
                 TestVoipCallTransaction.SUCCESS);
-        VoipCallTransaction t2 = new TestVoipCallTransaction("t2", 1000L,
+        TestVoipCallTransaction t2 = new TestVoipCallTransaction("t2", 1000L,
                 TestVoipCallTransaction.FAILED);
-        VoipCallTransaction t3 = new TestVoipCallTransaction("t3", 1000L,
+        TestVoipCallTransaction t3 = new TestVoipCallTransaction("t3", 1000L,
                 TestVoipCallTransaction.SUCCESS);
         subTransactions.add(t1);
         subTransactions.add(t2);
@@ -171,6 +177,7 @@
         exceptionFuture.get(5000L, TimeUnit.MILLISECONDS);
         String expectedLog = "t1 success;\nt2 failed;\n";
         assertEquals(expectedLog, mLog.toString());
+        verifyTransactionsFinished(t1, t2, t3);
     }
 
     @SmallTest
@@ -178,11 +185,11 @@
     public void testParallelTransactionSuccess()
             throws ExecutionException, InterruptedException, TimeoutException {
         List<VoipCallTransaction> subTransactions = new ArrayList<>();
-        VoipCallTransaction t1 = new TestVoipCallTransaction("t1", 1000L,
+        TestVoipCallTransaction t1 = new TestVoipCallTransaction("t1", 1000L,
                 TestVoipCallTransaction.SUCCESS);
-        VoipCallTransaction t2 = new TestVoipCallTransaction("t2", 500L,
+        TestVoipCallTransaction t2 = new TestVoipCallTransaction("t2", 500L,
                 TestVoipCallTransaction.SUCCESS);
-        VoipCallTransaction t3 = new TestVoipCallTransaction("t3", 200L,
+        TestVoipCallTransaction t3 = new TestVoipCallTransaction("t3", 200L,
                 TestVoipCallTransaction.SUCCESS);
         subTransactions.add(t1);
         subTransactions.add(t2);
@@ -198,6 +205,7 @@
         assertTrue(log.contains("t1 success;\n"));
         assertTrue(log.contains("t2 success;\n"));
         assertTrue(log.contains("t3 success;\n"));
+        verifyTransactionsFinished(t1, t2, t3);
     }
 
     @SmallTest
@@ -205,11 +213,11 @@
     public void testParallelTransactionFailed()
             throws ExecutionException, InterruptedException, TimeoutException {
         List<VoipCallTransaction> subTransactions = new ArrayList<>();
-        VoipCallTransaction t1 = new TestVoipCallTransaction("t1", 1000L,
+        TestVoipCallTransaction t1 = new TestVoipCallTransaction("t1", 1000L,
                 TestVoipCallTransaction.SUCCESS);
-        VoipCallTransaction t2 = new TestVoipCallTransaction("t2", 500L,
+        TestVoipCallTransaction t2 = new TestVoipCallTransaction("t2", 500L,
                 TestVoipCallTransaction.FAILED);
-        VoipCallTransaction t3 = new TestVoipCallTransaction("t3", 200L,
+        TestVoipCallTransaction t3 = new TestVoipCallTransaction("t3", 200L,
                 TestVoipCallTransaction.SUCCESS);
         subTransactions.add(t1);
         subTransactions.add(t2);
@@ -231,13 +239,14 @@
                 outcomeReceiver);
         exceptionFuture.get(5000L, TimeUnit.MILLISECONDS);
         assertTrue(mLog.toString().contains("t2 failed;\n"));
+        verifyTransactionsFinished(t1, t2, t3);
     }
 
     @SmallTest
     @Test
     public void testTransactionTimeout()
             throws ExecutionException, InterruptedException, TimeoutException {
-        VoipCallTransaction t = new TestVoipCallTransaction("t", 10000L,
+        TestVoipCallTransaction t = new TestVoipCallTransaction("t", 10000L,
                 TestVoipCallTransaction.SUCCESS);
         CompletableFuture<String> exceptionFuture = new CompletableFuture<>();
         OutcomeReceiver<VoipCallTransactionResult, CallException> outcomeReceiver =
@@ -255,15 +264,16 @@
         mTransactionManager.addTransaction(t, outcomeReceiver);
         String message = exceptionFuture.get(7000L, TimeUnit.MILLISECONDS);
         assertTrue(message.contains("timeout"));
+        verifyTransactionsFinished(t);
     }
 
     @SmallTest
     @Test
     public void testTransactionException()
             throws ExecutionException, InterruptedException, TimeoutException {
-        VoipCallTransaction t1 = new TestVoipCallTransaction("t1", 1000L,
+        TestVoipCallTransaction t1 = new TestVoipCallTransaction("t1", 1000L,
                 TestVoipCallTransaction.EXCEPTION);
-        VoipCallTransaction t2 = new TestVoipCallTransaction("t2", 1000L,
+        TestVoipCallTransaction t2 = new TestVoipCallTransaction("t2", 1000L,
                 TestVoipCallTransaction.SUCCESS);
         CompletableFuture<String> exceptionFuture = new CompletableFuture<>();
         OutcomeReceiver<VoipCallTransactionResult, CallException> outcomeExceptionReceiver =
@@ -290,17 +300,18 @@
         assertEquals(VoipCallTransactionResult.RESULT_SUCCEED,
                 resultFuture.get(5000L, TimeUnit.MILLISECONDS).getResult());
         assertEquals(expectedLog, mLog.toString());
+        verifyTransactionsFinished(t1, t2);
     }
 
     @SmallTest
     @Test
     public void testTransactionResultException()
             throws ExecutionException, InterruptedException, TimeoutException {
-        VoipCallTransaction t1 = new TestVoipCallTransaction("t1", 1000L,
+        TestVoipCallTransaction t1 = new TestVoipCallTransaction("t1", 1000L,
                 TestVoipCallTransaction.SUCCESS);
-        VoipCallTransaction t2 = new TestVoipCallTransaction("t2", 1000L,
+        TestVoipCallTransaction t2 = new TestVoipCallTransaction("t2", 1000L,
                 TestVoipCallTransaction.SUCCESS);
-        VoipCallTransaction t3 = new TestVoipCallTransaction("t3", 1000L,
+        TestVoipCallTransaction t3 = new TestVoipCallTransaction("t3", 1000L,
                 TestVoipCallTransaction.SUCCESS);
         OutcomeReceiver<VoipCallTransactionResult, CallException> outcomeExceptionReceiver =
                 new OutcomeReceiver<>() {
@@ -335,5 +346,13 @@
         assertEquals(VoipCallTransactionResult.RESULT_SUCCEED,
                 resultFuture.get(5000L, TimeUnit.MILLISECONDS).getResult());
         assertEquals(expectedLog, mLog.toString());
+        verifyTransactionsFinished(t1, t2, t3);
+    }
+
+    public void verifyTransactionsFinished(TestVoipCallTransaction... transactions) {
+        for (TestVoipCallTransaction t : transactions) {
+            assertTrue("TestVoipCallTransaction[" + t.mName + "] never called finishTransaction",
+                    t.isFinished);
+        }
     }
 }