diff --git a/radio/aidl/android/hardware/radio/ims/IRadioImsResponse.aidl b/radio/aidl/android/hardware/radio/ims/IRadioImsResponse.aidl
index b5e7680566..241c342384 100644
--- a/radio/aidl/android/hardware/radio/ims/IRadioImsResponse.aidl
+++ b/radio/aidl/android/hardware/radio/ims/IRadioImsResponse.aidl
@@ -37,7 +37,6 @@ oneway interface IRadioImsResponse {
      *   RadioError:MODEM_ERR
      *   RadioError:INTERNAL_ERR
      *   RadioError:INVALID_ARGUMENTS
-     *   RadioError:REQUEST_NOT_SUPPORTED
      *   RadioError:NO_RESOURCES
      */
     void setSrvccCallInfoResponse(in RadioResponseInfo info);
@@ -54,7 +53,6 @@ oneway interface IRadioImsResponse {
      *   RadioError:MODEM_ERR
      *   RadioError:INTERNAL_ERR
      *   RadioError:INVALID_ARGUMENTS
-     *   RadioError:REQUEST_NOT_SUPPORTED
      *   RadioError:NO_RESOURCES
      */
     void updateImsRegistrationInfoResponse(in RadioResponseInfo info);
@@ -72,7 +70,6 @@ oneway interface IRadioImsResponse {
      *   RadioError:MODEM_ERR
      *   RadioError:INTERNAL_ERR
      *   RadioError:INVALID_ARGUMENTS
-     *   RadioError:REQUEST_NOT_SUPPORTED
      *   RadioError:NO_RESOURCES
      */
     void startImsTrafficResponse(in RadioResponseInfo info,
@@ -90,7 +87,6 @@ oneway interface IRadioImsResponse {
      *   RadioError:MODEM_ERR
      *   RadioError:INTERNAL_ERR
      *   RadioError:INVALID_ARGUMENTS
-     *   RadioError:REQUEST_NOT_SUPPORTED
      *   RadioError:NO_RESOURCES
      */
     void stopImsTrafficResponse(in RadioResponseInfo info);
@@ -107,7 +103,6 @@ oneway interface IRadioImsResponse {
      *   RadioError:MODEM_ERR
      *   RadioError:INTERNAL_ERR
      *   RadioError:INVALID_ARGUMENTS
-     *   RadioError:REQUEST_NOT_SUPPORTED
      *   RadioError:NO_RESOURCES
      */
     void triggerEpsFallbackResponse(in RadioResponseInfo info);
@@ -124,7 +119,6 @@ oneway interface IRadioImsResponse {
      *   RadioError:MODEM_ERR
      *   RadioError:INTERNAL_ERR
      *   RadioError:INVALID_ARGUMENTS
-     *   RadioError:REQUEST_NOT_SUPPORTED
      *   RadioError:NO_RESOURCES
      */
     void sendAnbrQueryResponse(in RadioResponseInfo info);
@@ -141,7 +135,6 @@ oneway interface IRadioImsResponse {
      *   RadioError:MODEM_ERR
      *   RadioError:INTERNAL_ERR
      *   RadioError:INVALID_ARGUMENTS
-     *   RadioError:REQUEST_NOT_SUPPORTED
      *   RadioError:NO_RESOURCES
      */
     void updateImsCallStatusResponse(in RadioResponseInfo info);
diff --git a/radio/aidl/vts/radio_ims_test.cpp b/radio/aidl/vts/radio_ims_test.cpp
index 5e3f057c61..289d3ed54d 100644
--- a/radio/aidl/vts/radio_ims_test.cpp
+++ b/radio/aidl/vts/radio_ims_test.cpp
@@ -252,7 +252,6 @@ void RadioImsTest::verifyError(RadioError resp) {
         case RadioError::MODEM_ERR:
         case RadioError::INTERNAL_ERR:
         case RadioError::INVALID_ARGUMENTS:
-        case RadioError::REQUEST_NOT_SUPPORTED:
         case RadioError::NO_RESOURCES:
             SUCCEED();
             break;