diff --git a/telephony/java/com/android/internal/telephony/ITelephony.aidl b/telephony/java/com/android/internal/telephony/ITelephony.aidl
index e270b8dc3fe4a..9fe06dc32c28b 100644
--- a/telephony/java/com/android/internal/telephony/ITelephony.aidl
+++ b/telephony/java/com/android/internal/telephony/ITelephony.aidl
@@ -2351,6 +2351,16 @@ interface ITelephony {
      */
     void triggerRcsReconfiguration(int subId);
 
+    /**
+     * Enables or disables the test mode for RCS VoLTE single registration.
+     */
+    void setRcsSingleRegistrationTestModeEnabled(boolean enabled);
+
+    /**
+     * Gets the test mode for RCS VoLTE single registration.
+     */
+    boolean getRcsSingleRegistrationTestModeEnabled();
+
     /**
      * Overrides the config of RCS VoLTE single registration enabled for the device.
      */