diff --git a/radio/aidl/Android.bp b/radio/aidl/Android.bp
index 44b1fd9..3eb6bf2 100644
--- a/radio/aidl/Android.bp
+++ b/radio/aidl/Android.bp
@@ -198,3 +198,24 @@
     },
 }
 
+aidl_interface {
+    name: "android.hardware.radio.ims",
+    vendor_available: true,
+    srcs: ["android/hardware/radio/ims/*.aidl"],
+    stability: "vintf",
+    imports: ["android.hardware.radio"],
+    backend: {
+        cpp: {
+            enabled: false,
+        },
+        java: {
+            sdk_version: "module_current",
+        },
+        ndk: {
+            vndk: {
+                enabled: true,
+            },
+        },
+    },
+}
+
diff --git a/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/ConnectionFailureInfo.aidl b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/ConnectionFailureInfo.aidl
new file mode 100644
index 0000000..79daf6d
--- /dev/null
+++ b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/ConnectionFailureInfo.aidl
@@ -0,0 +1,53 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.radio.ims;
+@VintfStability
+parcelable ConnectionFailureInfo {
+  android.hardware.radio.ims.ConnectionFailureInfo.ConnectionFailureReason failureReason;
+  int causeCode;
+  int waitTimeMillis;
+  @Backing(type="int") @VintfStability
+  enum ConnectionFailureReason {
+    REASON_ACCESS_DENIED = 1,
+    REASON_NAS_FAILURE = 2,
+    REASON_RACH_FAILURE = 3,
+    REASON_RLC_FAILURE = 4,
+    REASON_RRC_REJECT = 5,
+    REASON_RRC_TIMEOUT = 6,
+    REASON_NO_SERVICE = 7,
+    REASON_PDN_NOT_AVAILABLE = 8,
+    REASON_RF_BUSY = 9,
+    REASON_UNSPECIFIED = 65535,
+  }
+}
diff --git a/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioIms.aidl b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioIms.aidl
new file mode 100644
index 0000000..2930338
--- /dev/null
+++ b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioIms.aidl
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.radio.ims;
+@VintfStability
+interface IRadioIms {
+  oneway void setSrvccCallInfo(int serial, in android.hardware.radio.ims.SrvccCall[] srvccCalls);
+  oneway void updateImsRegistrationInfo(int serial, in android.hardware.radio.ims.ImsRegistration imsRegistration);
+  oneway void notifyImsTraffic(int serial, int token, android.hardware.radio.ims.ImsTrafficType imsTrafficType, boolean isStart);
+  oneway void performAcbCheck(int serial, int token, android.hardware.radio.ims.ImsTrafficType imsTrafficType);
+  oneway void setResponseFunctions(in android.hardware.radio.ims.IRadioImsResponse radioImsResponse, in android.hardware.radio.ims.IRadioImsIndication radioImsIndication);
+}
diff --git a/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioImsIndication.aidl b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioImsIndication.aidl
new file mode 100644
index 0000000..0246af1
--- /dev/null
+++ b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioImsIndication.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.radio.ims;
+@VintfStability
+interface IRadioImsIndication {
+  oneway void onConnectionSetupFailure(in android.hardware.radio.RadioIndicationType type, int token, in android.hardware.radio.ims.ConnectionFailureInfo info);
+  oneway void onAccessAllowed(in android.hardware.radio.RadioIndicationType type, int token);
+}
diff --git a/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioImsResponse.aidl b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioImsResponse.aidl
new file mode 100644
index 0000000..58f7eb9
--- /dev/null
+++ b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/IRadioImsResponse.aidl
@@ -0,0 +1,41 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.radio.ims;
+@VintfStability
+interface IRadioImsResponse {
+  oneway void setSrvccCallInfoResponse(in android.hardware.radio.RadioResponseInfo info);
+  oneway void updateImsRegistrationInfoResponse(in android.hardware.radio.RadioResponseInfo info);
+  oneway void notifyImsTrafficResponse(in android.hardware.radio.RadioResponseInfo info);
+  oneway void performAcbCheckResponse(in android.hardware.radio.RadioResponseInfo info);
+}
diff --git a/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/ImsRegistration.aidl b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/ImsRegistration.aidl
new file mode 100644
index 0000000..f843095
--- /dev/null
+++ b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/ImsRegistration.aidl
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"),
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.radio.ims;
+@VintfStability
+parcelable ImsRegistration {
+  android.hardware.radio.ims.ImsRegistration.State state;
+  android.hardware.radio.ims.ImsRegistration.ImsAccessNetwork ipcan;
+  android.hardware.radio.ims.ImsRegistration.FailureReason reason;
+  int features;
+  const int FEATURE_NONE = 0;
+  const int FEATURE_VOICE = 1;
+  const int FEATURE_VIDEO = 2;
+  const int FEATURE_SMS = 4;
+  @Backing(type="int") @VintfStability
+  enum State {
+    NOT_REGISTERED = 0,
+    REGISTERING = 1,
+    REGISTERED = 2,
+  }
+  @Backing(type="int") @VintfStability
+  enum ImsAccessNetwork {
+    NONE = 0,
+    EUTRAN = 1,
+    NGRAN = 2,
+    UTRAN = 3,
+    IWLAN = 4,
+    CROSS_SIM = 5,
+  }
+  @Backing(type="int") @VintfStability
+  enum FailureReason {
+    NONE = 0,
+    FATAL_ERROR = 1,
+    REPEATED_ERROR = 2,
+    TEMPORARY_ERROR = 3,
+  }
+}
diff --git a/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/ImsTrafficType.aidl b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/ImsTrafficType.aidl
new file mode 100644
index 0000000..413faa7
--- /dev/null
+++ b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/ImsTrafficType.aidl
@@ -0,0 +1,43 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.radio.ims;
+@Backing(type="int") @VintfStability
+enum ImsTrafficType {
+  EMERGENCY = 0,
+  EMERGENCY_SMS = 1,
+  VOICE = 2,
+  VIDEO = 3,
+  SMS = 4,
+  REGISTRATION = 5,
+}
diff --git a/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/SrvccCall.aidl b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/SrvccCall.aidl
new file mode 100644
index 0000000..1fb44dc
--- /dev/null
+++ b/radio/aidl/aidl_api/android.hardware.radio.ims/current/android/hardware/radio/ims/SrvccCall.aidl
@@ -0,0 +1,67 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+///////////////////////////////////////////////////////////////////////////////
+// THIS FILE IS IMMUTABLE. DO NOT EDIT IN ANY CASE.                          //
+///////////////////////////////////////////////////////////////////////////////
+
+// This file is a snapshot of an AIDL file. Do not edit it manually. There are
+// two cases:
+// 1). this is a frozen version file - do not edit this in any case.
+// 2). this is a 'current' file. If you make a backwards compatible change to
+//     the interface (from the latest frozen version), the build system will
+//     prompt you to update this file with `m <name>-update-api`.
+//
+// You must not make a backward incompatible change to any AIDL file built
+// with the aidl_interface module type with versions property set. The module
+// type is used to build AIDL files in a way that they can be used across
+// independently updatable components of the system. If a device is shipped
+// with such a backward incompatible change, it has a high risk of breaking
+// later when a module using the interface is updated, e.g., Mainline modules.
+
+package android.hardware.radio.ims;
+@VintfStability
+parcelable SrvccCall {
+  int index;
+  android.hardware.radio.ims.SrvccCall.CallType callType;
+  int callState;
+  android.hardware.radio.ims.SrvccCall.CallSubState callSubstate;
+  android.hardware.radio.ims.SrvccCall.ToneType ringbackToneType;
+  boolean isMpty;
+  boolean isMT;
+  String number;
+  int numPresentation;
+  String name;
+  int namePresentation;
+  @Backing(type="int") @VintfStability
+  enum CallType {
+    NORMAL = 0,
+    EMERGENCY = 1,
+  }
+  @Backing(type="int") @VintfStability
+  enum CallSubState {
+    NONE = 0,
+    PREALERTING = 1,
+    ANSWERED = 2,
+    HOLD_REQUESTED = 3,
+    RESUME_REQUESTED = 4,
+  }
+  @Backing(type="int") @VintfStability
+  enum ToneType {
+    NONE = 0,
+    LOCAL = 1,
+    NETWORK = 2,
+  }
+}
diff --git a/radio/aidl/android/hardware/radio/ims/ConnectionFailureInfo.aidl b/radio/aidl/android/hardware/radio/ims/ConnectionFailureInfo.aidl
new file mode 100644
index 0000000..0b6415c
--- /dev/null
+++ b/radio/aidl/android/hardware/radio/ims/ConnectionFailureInfo.aidl
@@ -0,0 +1,60 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.radio.ims;
+
+@VintfStability
+parcelable ConnectionFailureInfo {
+
+    @VintfStability
+    @Backing(type="int")
+    enum ConnectionFailureReason {
+        /** Access class check failed */
+        REASON_ACCESS_DENIED = 1,
+        /** 3GPP Non-access stratum failure */
+        REASON_NAS_FAILURE = 2,
+        /** Random access failure */
+        REASON_RACH_FAILURE = 3,
+        /** Radio link failure */
+        REASON_RLC_FAILURE = 4,
+        /** Radio connection establishment rejected by network */
+        REASON_RRC_REJECT = 5,
+        /** Radio connection establishment timed out */
+        REASON_RRC_TIMEOUT = 6,
+        /** Device currently not in service */
+        REASON_NO_SERVICE = 7,
+        /** The PDN is no more active */
+        REASON_PDN_NOT_AVAILABLE = 8,
+        /** Radio resource is busy with another subscription */
+        REASON_RF_BUSY = 9,
+        REASON_UNSPECIFIED = 0xFFFF,
+    }
+
+    /**
+     * Values are REASON_
+     */
+    ConnectionFailureReason failureReason;
+
+    /**
+     * Failure cause code from network or modem specific to the failure
+     */
+    int causeCode;
+
+    /**
+     * Retry wait time provided by network in milliseconds
+     */
+    int waitTimeMillis;
+}
diff --git a/radio/aidl/android/hardware/radio/ims/IRadioIms.aidl b/radio/aidl/android/hardware/radio/ims/IRadioIms.aidl
new file mode 100644
index 0000000..1e5e2f7
--- /dev/null
+++ b/radio/aidl/android/hardware/radio/ims/IRadioIms.aidl
@@ -0,0 +1,108 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.radio.ims;
+
+import android.hardware.radio.ims.ImsRegistration;
+import android.hardware.radio.ims.ImsTrafficType;
+import android.hardware.radio.ims.IRadioImsIndication;
+import android.hardware.radio.ims.IRadioImsResponse;
+import android.hardware.radio.ims.SrvccCall;
+
+/**
+ * This interface is used by IMS telephony layer to talk to cellular radio.
+ * All the functions have minimum one parameter:
+ * serial: which corresponds to serial no. of request. Serial numbers must only be memorized for the
+ * duration of a method call. If clients provide colliding serials (including passing the same
+ * serial to different methods), multiple responses (one for each method call) must still be served.
+ * setResponseFunctions must work with IRadioImsResponse and IRadioImsIndication.
+ */
+@VintfStability
+oneway interface IRadioIms {
+    /**
+     * Provides a list of SRVCC call information to radio.
+     *
+     * @param srvccCalls the list of calls
+     *
+     * Response function is IRadioImsResponse.setSrvccCallInfoResponse()
+     */
+    void setSrvccCallInfo(int serial, in SrvccCall[] srvccCalls);
+
+    /**
+     * Update the IMS registration information to the radio.
+     *
+     * This information shall be used by radio to implement following carrier requirements:
+     * 1) Graceful IMS PDN disconnection on cellular when NAS is about to perform detach
+     * eg. SIM removal or SIM refresh
+     * 2) Block PLMN or RAT based on the IMS registration failure reason
+     * 3) Start IMS establishment timers when on IMS registration is started
+     *
+     * @param serial Serial number of request
+     * @param imsRegistration IMS registration information
+     *
+     * Response function is IRadioImsResponse.updateImsRegistrationInfoResponse()
+     */
+    void updateImsRegistrationInfo(int serial, in ImsRegistration imsRegistration);
+
+    /**
+     * IMS stack notifies the NAS and RRC layers of the radio that the upcoming IMS traffic is
+     * for the service mentioned in the ImsTrafficType. If this API is not
+     * explicitly invoked and IMS module sends traffic on IMS PDN then the radio
+     * shall treat type as background data traffic type.
+     * This API shall be used by modem
+     *  1. To set the appropriate establishment cause in RRC connection request.
+     *  2. To prioritize RF resources in case of DSDS. The service priority is
+     * EMERGENCY > EMERGENCY SMS > VOICE > VIDEO > SMS > REGISTRATION > BACKGROUND
+     * DATA. The RF shall be prioritized to the subscription which handles higher
+     * priority service. When both subscriptions are handling the same type of
+     * service then RF shall be prioritized to the voice preferred sub.
+     *
+     * @param token Token number of the request
+     * @param imsTrafficType IMS traffic type like registration, voice, and video
+     * @param isStart true when the traffic flow starts, false when traffic flow stops.
+     *        false will not be notified for SMS as it's a short traffic.
+     *
+     * Response function is IRadioImsResponse.notifyImsTrafficResponse()
+     */
+    void notifyImsTraffic(int serial, int token,
+            ImsTrafficType imsTrafficType, boolean isStart);
+
+    /**
+     * This API shall check access class barring checks based on ImsTrafficType.
+     * In case of access class is allowed then
+     * IRadioImsIndication#onAccessAllowed(token) shall be invoked by radio
+     * so the IMS stack can transmit the data.
+     * In case of access is denied
+     * IRadioImsIndication#onConnectionSetupFailure(token, REASON_ACCESS_DENIED)
+     * shall be invoked.
+     *
+     * @param token Token number of the request
+     * @param imsTrafficType IMS traffic type like registration, voice
+     *        video, SMS, emergency etc
+     *
+     * Response function is IRadioImsResponse.performAcbCheckResponse()
+     */
+    void performAcbCheck(int serial, int token, ImsTrafficType imsTrafficType);
+
+    /**
+     * Set response functions for IMS radio requests and indications.
+     *
+     * @param radioImsResponse Object containing response functions
+     * @param radioImsIndication Object containing radio indications
+     */
+    void setResponseFunctions(in IRadioImsResponse radioImsResponse,
+            in IRadioImsIndication radioImsIndication);
+}
diff --git a/radio/aidl/android/hardware/radio/ims/IRadioImsIndication.aidl b/radio/aidl/android/hardware/radio/ims/IRadioImsIndication.aidl
new file mode 100644
index 0000000..2731c80
--- /dev/null
+++ b/radio/aidl/android/hardware/radio/ims/IRadioImsIndication.aidl
@@ -0,0 +1,46 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.radio.ims;
+
+import android.hardware.radio.RadioIndicationType;
+import android.hardware.radio.ims.ConnectionFailureInfo;
+
+/**
+ * Interface declaring unsolicited radio indications for ims APIs.
+ */
+@VintfStability
+oneway interface IRadioImsIndication {
+    /**
+     * Fired by radio when any IMS traffic is not sent to network due to any failure
+     * on cellular networks.
+     *
+     * @param token The token number of the notifyImsTraffic() or performACBcheck() APIs
+     * @param type Type of radio indication
+     * @param info Connection failure information
+     */
+    void onConnectionSetupFailure(in RadioIndicationType type, int token,
+            in ConnectionFailureInfo info);
+
+    /**
+     * Fired by radio in response to performAcbCheck(token, trafficType)
+     * if the access class check is allowed for the requested traffic type.
+     *
+     * @param token The token of the operation of performAcbCheck() API
+     * @param type Type of radio indication
+     */
+    void onAccessAllowed(in RadioIndicationType type, int token);
+}
diff --git a/radio/aidl/android/hardware/radio/ims/IRadioImsResponse.aidl b/radio/aidl/android/hardware/radio/ims/IRadioImsResponse.aidl
new file mode 100644
index 0000000..8a736fa
--- /dev/null
+++ b/radio/aidl/android/hardware/radio/ims/IRadioImsResponse.aidl
@@ -0,0 +1,94 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.radio.ims;
+
+import android.hardware.radio.RadioResponseInfo;
+
+/**
+ * Interface declaring response functions to solicited radio requests for ims APIs.
+ */
+@VintfStability
+oneway interface IRadioImsResponse {
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error
+     *
+     * Valid errors returned:
+     *   RadioError:NONE
+     *   RadioError:RADIO_NOT_AVAILABLE
+     *   RadioError:INVALID_STATE
+     *   RadioError:NO_MEMORY
+     *   RadioError:SYSTEM_ERR
+     *   RadioError:MODEM_ERR
+     *   RadioError:INTERNAL_ERR
+     *   RadioError:INVALID_ARGUMENTS
+     *   RadioError:REQUEST_NOT_SUPPORTED
+     *   RadioError:NO_RESOURCES
+     */
+    void setSrvccCallInfoResponse(in RadioResponseInfo info);
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error
+     *
+     * Valid errors returned:
+     *   RadioError:NONE
+     *   RadioError:RADIO_NOT_AVAILABLE
+     *   RadioError:INVALID_STATE
+     *   RadioError:NO_MEMORY
+     *   RadioError:SYSTEM_ERR
+     *   RadioError:MODEM_ERR
+     *   RadioError:INTERNAL_ERR
+     *   RadioError:INVALID_ARGUMENTS
+     *   RadioError:REQUEST_NOT_SUPPORTED
+     *   RadioError:NO_RESOURCES
+     */
+    void updateImsRegistrationInfoResponse(in RadioResponseInfo info);
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error
+     *
+     * Valid errors returned:
+     *   RadioError:NONE
+     *   RadioError:RADIO_NOT_AVAILABLE
+     *   RadioError:INVALID_STATE
+     *   RadioError:NO_MEMORY
+     *   RadioError:SYSTEM_ERR
+     *   RadioError:MODEM_ERR
+     *   RadioError:INTERNAL_ERR
+     *   RadioError:INVALID_ARGUMENTS
+     *   RadioError:REQUEST_NOT_SUPPORTED
+     *   RadioError:NO_RESOURCES
+     */
+    void notifyImsTrafficResponse(in RadioResponseInfo info);
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error
+     *
+     * Valid errors returned:
+     *   RadioError:NONE
+     *   RadioError:RADIO_NOT_AVAILABLE
+     *   RadioError:INVALID_STATE
+     *   RadioError:NO_MEMORY
+     *   RadioError:SYSTEM_ERR
+     *   RadioError:MODEM_ERR
+     *   RadioError:INTERNAL_ERR
+     *   RadioError:INVALID_ARGUMENTS
+     *   RadioError:REQUEST_NOT_SUPPORTED
+     *   RadioError:NO_RESOURCES
+     */
+    void performAcbCheckResponse(in RadioResponseInfo info);
+}
diff --git a/radio/aidl/android/hardware/radio/ims/ImsRegistration.aidl b/radio/aidl/android/hardware/radio/ims/ImsRegistration.aidl
new file mode 100644
index 0000000..a011b40
--- /dev/null
+++ b/radio/aidl/android/hardware/radio/ims/ImsRegistration.aidl
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License"),
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.radio.ims;
+
+@VintfStability
+parcelable ImsRegistration {
+
+    @VintfStability
+    @Backing(type="int")
+    enum State {
+        /** IMS is not registered */
+        NOT_REGISTERED,
+        /**
+         * IMS registration procedure just started.
+         * It could be used by radio to start IMS establishment timer based on carrier requirements.
+         */
+        REGISTERING,
+        /** IMS is successfully registered */
+        REGISTERED,
+    }
+
+    @VintfStability
+    @Backing(type="int")
+    enum ImsAccessNetwork {
+        /**
+         * Indicates the access network where IMS is registered. If IMS is registered on
+         * cellular then the radio shall wait for IMS PDN disconnection for 4 seconds
+         * before performing NAS detach procedure. This requirement is not applicable for
+         * if access network IWLAN and CROSS_SIM.
+         */
+        NONE,
+        EUTRAN,
+        NGRAN,
+        UTRAN,
+        /** The IMS registration is done over WiFi network. */
+        IWLAN,
+        /**
+         * The radio shall not consider the registration information with this type
+         * while voice domain selection is performed.
+         * The IMS registration is done over internet of the default data  subscription.
+         */
+        CROSS_SIM,
+    }
+
+    @VintfStability
+    @Backing(type="int")
+    enum FailureReason {
+        /** Default value */
+        NONE,
+        /**
+         * Indicates that the IMS registration is failed with fatal error 403 or 404
+         * on all P-CSCF addresses. The radio shall block the current PLMN or disable
+         * the RAT as per the carrier requirements.
+         */
+        FATAL_ERROR,
+        /**
+         * Indicates that the IMS registration on current PLMN failed multiple times.
+         * The radio shall block the current PLMN or disable the RAT as per the
+         * carrier requirements.
+         */
+        REPEATED_ERROR,
+        /*
+         * Indicates that IMS registration has failed temporarily.
+         */
+        TEMPORARY_ERROR,
+    }
+
+    /** Default value */
+    const int FEATURE_NONE = 0;
+    /** IMS voice feature */
+    const int FEATURE_VOICE = 1 << 0;
+    /** IMS video feature */
+    const int FEATURE_VIDEO = 1 << 1;
+    /** IMS SMS feature */
+    const int FEATURE_SMS = 1 << 2;
+
+    /** Indicates the current IMS registration state. */
+    State state;
+
+    /** Indicates the IP connectivity access network where IMS features are registered. */
+    ImsAccessNetwork ipcan;
+
+    /** Indicates a failure reason for IMS registration. */
+    FailureReason reason;
+
+    /**
+     * Values are bitwise ORs of FEATURE_.
+     * IMS features such as VOICE, VIDEO and SMS.
+     */
+    int features;
+}
diff --git a/radio/aidl/android/hardware/radio/ims/ImsTrafficType.aidl b/radio/aidl/android/hardware/radio/ims/ImsTrafficType.aidl
new file mode 100644
index 0000000..f6d16ca
--- /dev/null
+++ b/radio/aidl/android/hardware/radio/ims/ImsTrafficType.aidl
@@ -0,0 +1,39 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.radio.ims;
+
+@VintfStability
+@Backing(type="int")
+enum ImsTrafficType {
+    /** Emergency call */
+    EMERGENCY,
+
+    /** Emergency SMS */
+    EMERGENCY_SMS,
+
+    /** Voice call */
+    VOICE,
+
+    /** Video call */
+    VIDEO,
+
+    /** SMS over IMS */
+    SMS,
+
+    /** IMS registration and subscription for reg event package (signaling) */
+    REGISTRATION,
+}
diff --git a/radio/aidl/android/hardware/radio/ims/SrvccCall.aidl b/radio/aidl/android/hardware/radio/ims/SrvccCall.aidl
new file mode 100644
index 0000000..e7e76b1
--- /dev/null
+++ b/radio/aidl/android/hardware/radio/ims/SrvccCall.aidl
@@ -0,0 +1,80 @@
+/*
+ * Copyright (C) 2022 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+package android.hardware.radio.ims;
+
+@VintfStability
+parcelable SrvccCall {
+
+    @VintfStability
+    @Backing(type="int")
+    enum CallType {
+        NORMAL,
+        EMERGENCY,
+    }
+
+    @VintfStability
+    @Backing(type="int")
+    enum CallSubState {
+        NONE,
+        /** Pre-alerting state. Applicable for MT calls only */
+        PREALERTING,
+        ANSWERED,
+        HOLD_REQUESTED,
+        RESUME_REQUESTED,
+    }
+
+    @VintfStability
+    @Backing(type="int")
+    enum ToneType {
+        NONE,
+        LOCAL,
+        NETWORK,
+    }
+
+    /** Connection index */
+    int index;
+
+    /** The type of the call */
+    CallType callType;
+
+    /** Values are android.hardware.radio.voice.Call.STATE_ */
+    int callState;
+
+    /** The substate of the call */
+    CallSubState callSubstate;
+
+    /** The type of the ringback tone */
+    ToneType ringbackToneType;
+
+    /** true if is mpty call */
+    boolean isMpty;
+
+    /** true if call is mobile terminated */
+    boolean isMT;
+
+    /** Remote party nummber */
+    String number;
+
+    /** Values are android.hardware.radio.voice.Call.PRESENTATION_ */
+    int numPresentation;
+
+    /** Remote party name */
+    String name;
+
+    /** Values are android.hardware.radio.voice.Call.PRESENTATION_ */
+    int namePresentation;
+}
diff --git a/radio/aidl/vts/Android.bp b/radio/aidl/vts/Android.bp
index 8060e4b..eaec28b 100644
--- a/radio/aidl/vts/Android.bp
+++ b/radio/aidl/vts/Android.bp
@@ -35,6 +35,9 @@
         "radio_data_indication.cpp",
         "radio_data_response.cpp",
         "radio_data_test.cpp",
+        "radio_ims_indication.cpp",
+        "radio_ims_response.cpp",
+        "radio_ims_test.cpp",
         "radio_messaging_indication.cpp",
         "radio_messaging_response.cpp",
         "radio_messaging_test.cpp",
@@ -60,6 +63,7 @@
         "android.hardware.radio-V1-ndk",
         "android.hardware.radio.config-V1-ndk",
         "android.hardware.radio.data-V1-ndk",
+        "android.hardware.radio.ims-V1-ndk",
         "android.hardware.radio.messaging-V1-ndk",
         "android.hardware.radio.modem-V1-ndk",
         "android.hardware.radio.network-V1-ndk",
diff --git a/radio/aidl/vts/VtsHalRadioTargetTest.cpp b/radio/aidl/vts/VtsHalRadioTargetTest.cpp
index 1ebc6af..67a2672 100644
--- a/radio/aidl/vts/VtsHalRadioTargetTest.cpp
+++ b/radio/aidl/vts/VtsHalRadioTargetTest.cpp
@@ -18,6 +18,7 @@
 
 #include "radio_config_utils.h"
 #include "radio_data_utils.h"
+#include "radio_ims_utils.h"
 #include "radio_messaging_utils.h"
 #include "radio_modem_utils.h"
 #include "radio_network_utils.h"
@@ -65,6 +66,12 @@
         testing::ValuesIn(android::getAidlHalInstanceNames(IRadioVoice::descriptor)),
         android::PrintInstanceNameToString);
 
+GTEST_ALLOW_UNINSTANTIATED_PARAMETERIZED_TEST(RadioImsTest);
+INSTANTIATE_TEST_SUITE_P(
+        PerInstance, RadioImsTest,
+        testing::ValuesIn(android::getAidlHalInstanceNames(IRadioIms::descriptor)),
+        android::PrintInstanceNameToString);
+
 int main(int argc, char** argv) {
     ::testing::InitGoogleTest(&argc, argv);
     ABinderProcess_setThreadPoolMaxThreadCount(1);
diff --git a/radio/aidl/vts/radio_aidl_hal_utils.h b/radio/aidl/vts/radio_aidl_hal_utils.h
index 414ffbc..8bef3b1 100644
--- a/radio/aidl/vts/radio_aidl_hal_utils.h
+++ b/radio/aidl/vts/radio_aidl_hal_utils.h
@@ -64,6 +64,8 @@
 
 static constexpr const char* FEATURE_TELEPHONY_CDMA = "android.hardware.telephony.cdma";
 
+static constexpr const char* FEATURE_TELEPHONY_IMS = "android.hardware.telephony.ims";
+
 #define MODEM_EMERGENCY_CALL_ESTABLISH_TIME 3
 #define MODEM_EMERGENCY_CALL_DISCONNECT_TIME 3
 #define MODEM_SET_SIM_POWER_DELAY_IN_SECONDS 2
diff --git a/radio/aidl/vts/radio_ims_indication.cpp b/radio/aidl/vts/radio_ims_indication.cpp
new file mode 100644
index 0000000..8c4aa14
--- /dev/null
+++ b/radio/aidl/vts/radio_ims_indication.cpp
@@ -0,0 +1,29 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#include "radio_ims_utils.h"
+
+RadioImsIndication::RadioImsIndication(RadioServiceTest& parent) : parent_ims(parent) {}
+
+ndk::ScopedAStatus RadioImsIndication::onConnectionSetupFailure(RadioIndicationType /*type*/,
+        int /*token*/, const ConnectionFailureInfo& /*info*/) {
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus RadioImsIndication::onAccessAllowed(RadioIndicationType /*type*/,
+        int /*token*/) {
+    return ndk::ScopedAStatus::ok();
+}
diff --git a/radio/aidl/vts/radio_ims_response.cpp b/radio/aidl/vts/radio_ims_response.cpp
new file mode 100644
index 0000000..f9f3401
--- /dev/null
+++ b/radio/aidl/vts/radio_ims_response.cpp
@@ -0,0 +1,44 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#include "radio_ims_utils.h"
+
+RadioImsResponse::RadioImsResponse(RadioServiceTest& parent) : parent_ims(parent) {}
+
+ndk::ScopedAStatus RadioImsResponse::setSrvccCallInfoResponse(const RadioResponseInfo& info) {
+    rspInfo = info;
+    parent_ims.notify(info.serial);
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus RadioImsResponse::updateImsRegistrationInfoResponse(
+        const RadioResponseInfo& info) {
+    rspInfo = info;
+    parent_ims.notify(info.serial);
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus RadioImsResponse::notifyImsTrafficResponse(const RadioResponseInfo& info) {
+    rspInfo = info;
+    parent_ims.notify(info.serial);
+    return ndk::ScopedAStatus::ok();
+}
+
+ndk::ScopedAStatus RadioImsResponse::performAcbCheckResponse(const RadioResponseInfo& info) {
+    rspInfo = info;
+    parent_ims.notify(info.serial);
+    return ndk::ScopedAStatus::ok();
+}
diff --git a/radio/aidl/vts/radio_ims_test.cpp b/radio/aidl/vts/radio_ims_test.cpp
new file mode 100644
index 0000000..62a18f1
--- /dev/null
+++ b/radio/aidl/vts/radio_ims_test.cpp
@@ -0,0 +1,183 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#include <aidl/android/hardware/radio/config/IRadioConfig.h>
+#include <android-base/logging.h>
+#include <android/binder_manager.h>
+
+#include "radio_ims_utils.h"
+
+#define ASSERT_OK(ret) ASSERT_TRUE(ret.isOk())
+
+void RadioImsTest::SetUp() {
+    std::string serviceName = GetParam();
+
+    if (!isServiceValidForDeviceConfiguration(serviceName)) {
+        ALOGI("Skipped the test due to device configuration.");
+        GTEST_SKIP();
+    }
+
+    radio_ims = IRadioIms::fromBinder(
+            ndk::SpAIBinder(AServiceManager_waitForService(GetParam().c_str())));
+    ASSERT_NE(nullptr, radio_ims.get());
+
+    radioRsp_ims = ndk::SharedRefBase::make<RadioImsResponse>(*this);
+    ASSERT_NE(nullptr, radioRsp_ims.get());
+
+    count_ = 0;
+
+    radioInd_ims = ndk::SharedRefBase::make<RadioImsIndication>(*this);
+    ASSERT_NE(nullptr, radioInd_ims.get());
+
+    radio_ims->setResponseFunctions(radioRsp_ims, radioInd_ims);
+
+    // Assert IRadioConfig exists before testing
+    radio_config = config::IRadioConfig::fromBinder(ndk::SpAIBinder(
+            AServiceManager_waitForService("android.hardware.radio.config.IRadioConfig/default")));
+    ASSERT_NE(nullptr, radio_config.get());
+}
+
+/*
+ * Test IRadioIms.setSrvccCallInfo() for the response returned.
+ */
+TEST_P(RadioImsTest, setSrvccCallInfo) {
+    if (!deviceSupportsFeature(FEATURE_TELEPHONY_IMS)) {
+        ALOGI("Skipping setSrvccCallInfo because ims is not supported in device");
+        return;
+    } else {
+        ALOGI("Running setSrvccCallInfo because ims is supported in device");
+    }
+
+    serial = GetRandomSerialNumber();
+
+    SrvccCall srvccCall;
+
+    ndk::ScopedAStatus res =
+            radio_ims->setSrvccCallInfo(serial, { srvccCall });
+    ASSERT_OK(res);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_ims->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_ims->rspInfo.serial);
+
+    ALOGI("setSrvccCallInfo, rspInfo.error = %s\n",
+              toString(radioRsp_ims->rspInfo.error).c_str());
+
+    verifyError(radioRsp_ims->rspInfo.error);
+}
+
+/*
+ * Test IRadioIms.updateImsRegistrationInfo() for the response returned.
+ */
+TEST_P(RadioImsTest, updateImsRegistrationInfo) {
+    if (!deviceSupportsFeature(FEATURE_TELEPHONY_IMS)) {
+        ALOGI("Skipping updateImsRegistrationInfo because ims is not supported in device");
+        return;
+    } else {
+        ALOGI("Running updateImsRegistrationInfo because ims is supported in device");
+    }
+
+    serial = GetRandomSerialNumber();
+
+    ImsRegistration regInfo;
+    regInfo.state = ImsRegistration::State::NOT_REGISTERED;
+    regInfo.ipcan = ImsRegistration::ImsAccessNetwork::NONE;
+    regInfo.reason = ImsRegistration::FailureReason::NONE;
+    regInfo.features = ImsRegistration::FEATURE_NONE;
+
+    ndk::ScopedAStatus res =
+            radio_ims->updateImsRegistrationInfo(serial, regInfo);
+    ASSERT_OK(res);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_ims->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_ims->rspInfo.serial);
+
+    ALOGI("updateImsRegistrationInfo, rspInfo.error = %s\n",
+              toString(radioRsp_ims->rspInfo.error).c_str());
+
+    verifyError(radioRsp_ims->rspInfo.error);
+}
+
+/*
+ * Test IRadioIms.notifyImsTraffic() for the response returned.
+ */
+TEST_P(RadioImsTest, notifyImsTraffic) {
+    if (!deviceSupportsFeature(FEATURE_TELEPHONY_IMS)) {
+        ALOGI("Skipping notifyImsTraffic because ims is not supported in device");
+        return;
+    } else {
+        ALOGI("Running notifyImsTraffic because ims is supported in device");
+    }
+
+    serial = GetRandomSerialNumber();
+
+    ndk::ScopedAStatus res =
+            radio_ims->notifyImsTraffic(serial, 1, ImsTrafficType::REGISTRATION, false);
+    ASSERT_OK(res);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_ims->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_ims->rspInfo.serial);
+
+    ALOGI("notifyImsTraffic, rspInfo.error = %s\n",
+              toString(radioRsp_ims->rspInfo.error).c_str());
+
+    verifyError(radioRsp_ims->rspInfo.error);
+}
+
+/*
+ * Test IRadioIms.performAcbCheck() for the response returned.
+ */
+TEST_P(RadioImsTest, performAcbCheck) {
+    if (!deviceSupportsFeature(FEATURE_TELEPHONY_IMS)) {
+        ALOGI("Skipping performAcbCheck because ims is not supported in device");
+        return;
+    } else {
+        ALOGI("Running performAcbCheck because ims is supported in device");
+    }
+
+    serial = GetRandomSerialNumber();
+
+    ndk::ScopedAStatus res =
+            radio_ims->performAcbCheck(serial, 1, ImsTrafficType::REGISTRATION);
+    ASSERT_OK(res);
+    EXPECT_EQ(std::cv_status::no_timeout, wait());
+    EXPECT_EQ(RadioResponseType::SOLICITED, radioRsp_ims->rspInfo.type);
+    EXPECT_EQ(serial, radioRsp_ims->rspInfo.serial);
+
+    ALOGI("performAcbCheck, rspInfo.error = %s\n",
+              toString(radioRsp_ims->rspInfo.error).c_str());
+
+    verifyError(radioRsp_ims->rspInfo.error);
+}
+
+void RadioImsTest::verifyError(RadioError resp) {
+    switch (resp) {
+        case RadioError::NONE:
+        case RadioError::RADIO_NOT_AVAILABLE:
+        case RadioError::INVALID_STATE:
+        case RadioError::NO_MEMORY:
+        case RadioError::SYSTEM_ERR:
+        case RadioError::MODEM_ERR:
+        case RadioError::INTERNAL_ERR:
+        case RadioError::INVALID_ARGUMENTS:
+        case RadioError::REQUEST_NOT_SUPPORTED:
+        case RadioError::NO_RESOURCES:
+            SUCCEED();
+            break;
+        default:
+            FAIL();
+            break;
+    }
+}
diff --git a/radio/aidl/vts/radio_ims_utils.h b/radio/aidl/vts/radio_ims_utils.h
new file mode 100644
index 0000000..c828e70
--- /dev/null
+++ b/radio/aidl/vts/radio_ims_utils.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright (C) 2021 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.
+ */
+
+#pragma once
+
+#include <aidl/android/hardware/radio/ims/BnRadioImsIndication.h>
+#include <aidl/android/hardware/radio/ims/BnRadioImsResponse.h>
+#include <aidl/android/hardware/radio/ims/IRadioIms.h>
+
+#include "radio_aidl_hal_utils.h"
+
+using namespace aidl::android::hardware::radio::ims;
+
+class RadioImsTest;
+
+/* Callback class for radio ims response */
+class RadioImsResponse : public BnRadioImsResponse {
+  protected:
+    RadioServiceTest& parent_ims;
+
+  public:
+    RadioImsResponse(RadioServiceTest& parent_ims);
+    virtual ~RadioImsResponse() = default;
+
+    RadioResponseInfo rspInfo;
+
+    virtual ndk::ScopedAStatus setSrvccCallInfoResponse(const RadioResponseInfo& info) override;
+
+    virtual ndk::ScopedAStatus updateImsRegistrationInfoResponse(
+            const RadioResponseInfo& info) override;
+
+    virtual ndk::ScopedAStatus notifyImsTrafficResponse(const RadioResponseInfo& info) override;
+
+    virtual ndk::ScopedAStatus performAcbCheckResponse(const RadioResponseInfo& info) override;
+};
+
+/* Callback class for radio ims indication */
+class RadioImsIndication : public BnRadioImsIndication {
+  protected:
+    RadioServiceTest& parent_ims;
+
+  public:
+    RadioImsIndication(RadioServiceTest& parent_ims);
+    virtual ~RadioImsIndication() = default;
+
+    virtual ndk::ScopedAStatus onConnectionSetupFailure(RadioIndicationType type, int token,
+            const ConnectionFailureInfo& info) override;
+
+    virtual ndk::ScopedAStatus onAccessAllowed(RadioIndicationType type, int token) override;
+};
+
+// The main test class for Radio AIDL Ims.
+class RadioImsTest : public ::testing::TestWithParam<std::string>, public RadioServiceTest {
+  protected:
+    virtual void verifyError(RadioError resp);
+
+  public:
+    virtual void SetUp() override;
+
+    /* radio ims service handle */
+    std::shared_ptr<IRadioIms> radio_ims;
+    /* radio ims response handle */
+    std::shared_ptr<RadioImsResponse> radioRsp_ims;
+    /* radio ims indication handle */
+    std::shared_ptr<RadioImsIndication> radioInd_ims;
+};