diff --git a/radio/aidl/compat/libradiocompat/Android.bp b/radio/aidl/compat/libradiocompat/Android.bp
index f79e045..0ceaec4 100644
--- a/radio/aidl/compat/libradiocompat/Android.bp
+++ b/radio/aidl/compat/libradiocompat/Android.bp
@@ -37,6 +37,7 @@
         "android.hardware.radio.config@1.2",
         "android.hardware.radio.config@1.3",
         "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-V2-ndk",
@@ -69,6 +70,9 @@
         "data/RadioResponse-data.cpp",
         "data/RadioData.cpp",
         "data/structs.cpp",
+        "ims/RadioIndication-ims.cpp",
+        "ims/RadioResponse-ims.cpp",
+        "ims/RadioIms.cpp",
         "messaging/RadioIndication-messaging.cpp",
         "messaging/RadioMessaging.cpp",
         "messaging/RadioResponse-messaging.cpp",
diff --git a/radio/aidl/compat/libradiocompat/ims/RadioIms.cpp b/radio/aidl/compat/libradiocompat/ims/RadioIms.cpp
new file mode 100644
index 0000000..3a07f84
--- /dev/null
+++ b/radio/aidl/compat/libradiocompat/ims/RadioIms.cpp
@@ -0,0 +1,81 @@
+/*
+ * 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.
+ */
+
+#include <libradiocompat/RadioIms.h>
+
+#include "commonStructs.h"
+#include "debug.h"
+
+#include "collections.h"
+
+#define RADIO_MODULE "Ims"
+
+namespace android::hardware::radio::compat {
+
+using ::ndk::ScopedAStatus;
+namespace aidl = ::aidl::android::hardware::radio::ims;
+constexpr auto ok = &ScopedAStatus::ok;
+
+std::shared_ptr<aidl::IRadioImsResponse> RadioIms::respond() {
+    return mCallbackManager->response().imsCb();
+}
+
+ScopedAStatus RadioIms::setSrvccCallInfo(
+        int32_t serial, const std::vector<aidl::SrvccCall>& /*srvccCalls*/) {
+    LOG_CALL << serial;
+    LOG(ERROR) << " setSrvccCallInfo is unsupported by HIDL HALs";
+    return ok();
+}
+ScopedAStatus RadioIms::updateImsRegistrationInfo(
+        int32_t serial, const aidl::ImsRegistration& /*imsRegistration*/) {
+    LOG_CALL << serial;
+    LOG(ERROR) << " updateImsRegistrationInfo is unsupported by HIDL HALs";
+    return ok();
+}
+ScopedAStatus RadioIms::startImsTraffic(
+        int32_t serial, const std::string& /*token*/, aidl::ImsTrafficType /*imsTrafficType*/,
+        ::aidl::android::hardware::radio::AccessNetwork /*accessNetworkType*/) {
+    LOG_CALL << serial;
+    LOG(ERROR) << " startImsTraffic is unsupported by HIDL HALs";
+    return ok();
+}
+ScopedAStatus RadioIms::stopImsTraffic(int32_t serial, const std::string& /*token*/) {
+    LOG_CALL << serial;
+    LOG(ERROR) << " stopImsTraffic is unsupported by HIDL HALs";
+    return ok();
+}
+ScopedAStatus RadioIms::triggerEpsFallback(int32_t serial, aidl::EpsFallbackReason /*reason*/) {
+    LOG_CALL << serial;
+    LOG(ERROR) << " triggerEpsFallback is unsupported by HIDL HALs";
+    return ok();
+}
+ScopedAStatus RadioIms::sendAnbrQuery(
+        int32_t serial, aidl::ImsStreamType /*mediaType*/, aidl::ImsStreamDirection /*direction*/,
+        int32_t /*bitsPerSecond*/) {
+    LOG_CALL << serial;
+    LOG(ERROR) << " sendAnbrQuery is unsupported by HIDL HALs";
+    return ok();
+}
+
+ScopedAStatus RadioIms::setResponseFunctions(
+        const std::shared_ptr<aidl::IRadioImsResponse>& response,
+        const std::shared_ptr<aidl::IRadioImsIndication>& indication) {
+    LOG_CALL << response << ' ' << indication;
+    mCallbackManager->setResponseFunctions(response, indication);
+    return ok();
+}
+
+}  // namespace android::hardware::radio::compat
diff --git a/radio/aidl/compat/libradiocompat/ims/RadioIndication-ims.cpp b/radio/aidl/compat/libradiocompat/ims/RadioIndication-ims.cpp
new file mode 100644
index 0000000..10109b8
--- /dev/null
+++ b/radio/aidl/compat/libradiocompat/ims/RadioIndication-ims.cpp
@@ -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.
+ */
+
+#include <libradiocompat/RadioIndication.h>
+
+#include "commonStructs.h"
+#include "debug.h"
+
+#include "collections.h"
+
+#define RADIO_MODULE "ImsIndication"
+
+namespace android::hardware::radio::compat {
+
+using ::aidl::android::hardware::radio::RadioTechnology;
+namespace aidl = ::aidl::android::hardware::radio::ims;
+
+void RadioIndication::setResponseFunction(std::shared_ptr<aidl::IRadioImsIndication> imsCb) {
+    mImsCb = imsCb;
+}
+
+std::shared_ptr<aidl::IRadioImsIndication> RadioIndication::imsCb() {
+    return mImsCb.get();
+}
+
+}  // namespace android::hardware::radio::compat
diff --git a/radio/aidl/compat/libradiocompat/ims/RadioResponse-ims.cpp b/radio/aidl/compat/libradiocompat/ims/RadioResponse-ims.cpp
new file mode 100644
index 0000000..831a0ae
--- /dev/null
+++ b/radio/aidl/compat/libradiocompat/ims/RadioResponse-ims.cpp
@@ -0,0 +1,38 @@
+/*
+ * 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.
+ */
+
+#include <libradiocompat/RadioResponse.h>
+
+#include "commonStructs.h"
+#include "debug.h"
+
+#include "collections.h"
+
+#define RADIO_MODULE "ImsResponse"
+
+namespace android::hardware::radio::compat {
+
+namespace aidl = ::aidl::android::hardware::radio::ims;
+
+void RadioResponse::setResponseFunction(std::shared_ptr<aidl::IRadioImsResponse> imsCb) {
+    mImsCb = imsCb;
+}
+
+std::shared_ptr<aidl::IRadioImsResponse> RadioResponse::imsCb() {
+    return mImsCb.get();
+}
+
+}  // namespace android::hardware::radio::compat
diff --git a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioIms.h b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioIms.h
new file mode 100644
index 0000000..eaf6e0f
--- /dev/null
+++ b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioIms.h
@@ -0,0 +1,57 @@
+/*
+ * 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.
+ */
+#pragma once
+
+#include "RadioCompatBase.h"
+
+#include <aidl/android/hardware/radio/ims/BnRadioIms.h>
+
+namespace android::hardware::radio::compat {
+
+class RadioIms : public RadioCompatBase, public aidl::android::hardware::radio::ims::BnRadioIms {
+    ::ndk::ScopedAStatus setSrvccCallInfo(
+            int32_t serial,
+            const std::vector<::aidl::android::hardware::radio::ims::SrvccCall>& srvccCalls)
+            override;
+    ::ndk::ScopedAStatus updateImsRegistrationInfo(
+            int32_t serial,
+            const ::aidl::android::hardware::radio::ims::ImsRegistration& imsRegistration) override;
+    ::ndk::ScopedAStatus startImsTraffic(
+            int32_t serial, const std::string& token,
+            ::aidl::android::hardware::radio::ims::ImsTrafficType imsTrafficType,
+            ::aidl::android::hardware::radio::AccessNetwork accessNetworkType) override;
+    ::ndk::ScopedAStatus stopImsTraffic(int32_t serial, const std::string& token) override;
+    ::ndk::ScopedAStatus triggerEpsFallback(
+            int32_t serial,
+            ::aidl::android::hardware::radio::ims::EpsFallbackReason reason) override;
+    ::ndk::ScopedAStatus sendAnbrQuery(
+            int32_t serial, ::aidl::android::hardware::radio::ims::ImsStreamType mediaType,
+            ::aidl::android::hardware::radio::ims::ImsStreamDirection direction,
+            int32_t bitsPerSecond) override;
+    ::ndk::ScopedAStatus setResponseFunctions(
+            const std::shared_ptr<::aidl::android::hardware::radio::ims::IRadioImsResponse>&
+                    radioImsResponse,
+            const std::shared_ptr<::aidl::android::hardware::radio::ims::IRadioImsIndication>&
+                    radioImsIndication) override;
+
+  protected:
+    std::shared_ptr<::aidl::android::hardware::radio::ims::IRadioImsResponse> respond();
+
+  public:
+    using RadioCompatBase::RadioCompatBase;
+};
+
+}  // namespace android::hardware::radio::compat
diff --git a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioIndication.h b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioIndication.h
index 6cfd59c..f042456 100644
--- a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioIndication.h
+++ b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioIndication.h
@@ -19,6 +19,7 @@
 #include "GuaranteedCallback.h"
 
 #include <aidl/android/hardware/radio/data/IRadioDataIndication.h>
+#include <aidl/android/hardware/radio/ims/IRadioImsIndication.h>
 #include <aidl/android/hardware/radio/messaging/IRadioMessagingIndication.h>
 #include <aidl/android/hardware/radio/modem/IRadioModemIndication.h>
 #include <aidl/android/hardware/radio/network/IRadioNetworkIndication.h>
@@ -55,6 +56,10 @@
             ::aidl::android::hardware::radio::voice::IRadioVoiceIndication,
             ::aidl::android::hardware::radio::voice::IRadioVoiceIndicationDefault, true>
             mVoiceCb;
+    GuaranteedCallback<  //
+            ::aidl::android::hardware::radio::ims::IRadioImsIndication,
+            ::aidl::android::hardware::radio::ims::IRadioImsIndicationDefault, true>
+            mImsCb;
 
     // IRadioIndication @ 1.0
     Return<void> radioStateChanged(V1_0::RadioIndicationType type,
@@ -220,6 +225,8 @@
             std::shared_ptr<::aidl::android::hardware::radio::sim::IRadioSimIndication> simCb);
     void setResponseFunction(
             std::shared_ptr<::aidl::android::hardware::radio::voice::IRadioVoiceIndication> voicCb);
+    void setResponseFunction(
+            std::shared_ptr<::aidl::android::hardware::radio::ims::IRadioImsIndication> imsCb);
 
     std::shared_ptr<::aidl::android::hardware::radio::data::IRadioDataIndication> dataCb();
     std::shared_ptr<::aidl::android::hardware::radio::messaging::IRadioMessagingIndication>
@@ -228,6 +235,7 @@
     std::shared_ptr<::aidl::android::hardware::radio::network::IRadioNetworkIndication> networkCb();
     std::shared_ptr<::aidl::android::hardware::radio::sim::IRadioSimIndication> simCb();
     std::shared_ptr<::aidl::android::hardware::radio::voice::IRadioVoiceIndication> voiceCb();
+    std::shared_ptr<::aidl::android::hardware::radio::ims::IRadioImsIndication> imsCb();
 };
 
 }  // namespace android::hardware::radio::compat
diff --git a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioResponse.h b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioResponse.h
index 1f82dd1..22451ae 100644
--- a/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioResponse.h
+++ b/radio/aidl/compat/libradiocompat/include/libradiocompat/RadioResponse.h
@@ -19,6 +19,7 @@
 #include "GuaranteedCallback.h"
 
 #include <aidl/android/hardware/radio/data/IRadioDataResponse.h>
+#include <aidl/android/hardware/radio/ims/IRadioImsResponse.h>
 #include <aidl/android/hardware/radio/messaging/IRadioMessagingResponse.h>
 #include <aidl/android/hardware/radio/modem/IRadioModemResponse.h>
 #include <aidl/android/hardware/radio/network/IRadioNetworkResponse.h>
@@ -49,6 +50,9 @@
     GuaranteedCallback<::aidl::android::hardware::radio::voice::IRadioVoiceResponse,
                        ::aidl::android::hardware::radio::voice::IRadioVoiceResponseDefault>
             mVoiceCb;
+    GuaranteedCallback<::aidl::android::hardware::radio::ims::IRadioImsResponse,
+                       ::aidl::android::hardware::radio::ims::IRadioImsResponseDefault>
+            mImsCb;
 
     // IRadioResponse @ 1.0
     Return<void> getIccCardStatusResponse(const V1_0::RadioResponseInfo& info,
@@ -440,6 +444,8 @@
             std::shared_ptr<::aidl::android::hardware::radio::sim::IRadioSimResponse> simCb);
     void setResponseFunction(
             std::shared_ptr<::aidl::android::hardware::radio::voice::IRadioVoiceResponse> voiceCb);
+    void setResponseFunction(
+            std::shared_ptr<::aidl::android::hardware::radio::ims::IRadioImsResponse> imsCb);
 
     std::shared_ptr<::aidl::android::hardware::radio::data::IRadioDataResponse> dataCb();
     std::shared_ptr<::aidl::android::hardware::radio::messaging::IRadioMessagingResponse>
@@ -448,6 +454,7 @@
     std::shared_ptr<::aidl::android::hardware::radio::network::IRadioNetworkResponse> networkCb();
     std::shared_ptr<::aidl::android::hardware::radio::sim::IRadioSimResponse> simCb();
     std::shared_ptr<::aidl::android::hardware::radio::voice::IRadioVoiceResponse> voiceCb();
+    std::shared_ptr<::aidl::android::hardware::radio::ims::IRadioImsResponse> imsCb();
 };
 
 }  // namespace android::hardware::radio::compat
diff --git a/radio/aidl/compat/service/Android.bp b/radio/aidl/compat/service/Android.bp
index 4dbaef4..d16773e 100644
--- a/radio/aidl/compat/service/Android.bp
+++ b/radio/aidl/compat/service/Android.bp
@@ -40,6 +40,7 @@
         "android.hardware.radio.config@1.2",
         "android.hardware.radio.config@1.3",
         "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-V2-ndk",