diff --git a/radio/aidl/aidl_api/android.hardware.radio.voice/current/android/hardware/radio/voice/IRadioVoice.aidl b/radio/aidl/aidl_api/android.hardware.radio.voice/current/android/hardware/radio/voice/IRadioVoice.aidl
index 4cac560..68c82fa 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.voice/current/android/hardware/radio/voice/IRadioVoice.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.voice/current/android/hardware/radio/voice/IRadioVoice.aidl
@@ -53,6 +53,7 @@
   oneway void hangup(in int serial, in int gsmIndex);
   oneway void hangupForegroundResumeBackground(in int serial);
   oneway void hangupWaitingOrBackground(in int serial);
+  oneway void isVoNrEnabled(in int serial);
   oneway void rejectCall(in int serial);
   oneway void responseAcknowledgement();
   oneway void sendBurstDtmf(in int serial, in String dtmf, in int on, in int off);
@@ -66,6 +67,7 @@
   oneway void setPreferredVoicePrivacy(in int serial, in boolean enable);
   oneway void setResponseFunctions(in android.hardware.radio.voice.IRadioVoiceResponse radioVoiceResponse, in android.hardware.radio.voice.IRadioVoiceIndication radioVoiceIndication);
   oneway void setTtyMode(in int serial, in android.hardware.radio.voice.TtyMode mode);
+  oneway void setVoNrEnabled(in int serial, in boolean enable);
   oneway void startDtmf(in int serial, in String s);
   oneway void stopDtmf(in int serial);
   oneway void switchWaitingOrHoldingAndActive(in int serial);
diff --git a/radio/aidl/aidl_api/android.hardware.radio.voice/current/android/hardware/radio/voice/IRadioVoiceResponse.aidl b/radio/aidl/aidl_api/android.hardware.radio.voice/current/android/hardware/radio/voice/IRadioVoiceResponse.aidl
index 9f490a8..a3b5e58 100644
--- a/radio/aidl/aidl_api/android.hardware.radio.voice/current/android/hardware/radio/voice/IRadioVoiceResponse.aidl
+++ b/radio/aidl/aidl_api/android.hardware.radio.voice/current/android/hardware/radio/voice/IRadioVoiceResponse.aidl
@@ -54,6 +54,7 @@
   oneway void hangupConnectionResponse(in android.hardware.radio.RadioResponseInfo info);
   oneway void hangupForegroundResumeBackgroundResponse(in android.hardware.radio.RadioResponseInfo info);
   oneway void hangupWaitingOrBackgroundResponse(in android.hardware.radio.RadioResponseInfo info);
+  oneway void isVoNrEnabledResponse(in android.hardware.radio.RadioResponseInfo info, in boolean enable);
   oneway void rejectCallResponse(in android.hardware.radio.RadioResponseInfo info);
   oneway void sendBurstDtmfResponse(in android.hardware.radio.RadioResponseInfo info);
   oneway void sendCdmaFeatureCodeResponse(in android.hardware.radio.RadioResponseInfo info);
@@ -65,6 +66,7 @@
   oneway void setMuteResponse(in android.hardware.radio.RadioResponseInfo info);
   oneway void setPreferredVoicePrivacyResponse(in android.hardware.radio.RadioResponseInfo info);
   oneway void setTtyModeResponse(in android.hardware.radio.RadioResponseInfo info);
+  oneway void setVoNrEnabledResponse(in android.hardware.radio.RadioResponseInfo info);
   oneway void startDtmfResponse(in android.hardware.radio.RadioResponseInfo info);
   oneway void stopDtmfResponse(in android.hardware.radio.RadioResponseInfo info);
   oneway void switchWaitingOrHoldingAndActiveResponse(in android.hardware.radio.RadioResponseInfo info);
diff --git a/radio/aidl/android/hardware/radio/voice/IRadioVoice.aidl b/radio/aidl/android/hardware/radio/voice/IRadioVoice.aidl
index 1e60de5..a012be4 100644
--- a/radio/aidl/android/hardware/radio/voice/IRadioVoice.aidl
+++ b/radio/aidl/android/hardware/radio/voice/IRadioVoice.aidl
@@ -267,6 +267,15 @@
     void hangupWaitingOrBackground(in int serial);
 
     /**
+     * Query current Voice NR enable state
+     *
+     * @param serial Serial number of request.
+     *
+     * Response function is IRadioVoiceResponse.isVoNrEnabledResponse()
+     */
+    void isVoNrEnabled(in int serial);
+
+    /**
      * Send UDUB (user determined user busy) to ringing or waiting call answer)
      *
      * @param serial Serial number of request.
@@ -404,6 +413,16 @@
     void setTtyMode(in int serial, in TtyMode mode);
 
     /**
+     * Set Voice NR enable state
+     *
+     * @param serial Serial number of request.
+     * @param enable true for "enable vonr" and false for "disable vonr"
+     *
+     * Response function is IRadioVoiceResponse.setVoNrEnabledResponse()
+     */
+    void setVoNrEnabled(in int serial, in boolean enable);
+
+    /**
      * Start playing a DTMF tone. Continue playing DTMF tone until stopDtmf is received. If a
      * startDtmf() is received while a tone is currently playing, it must cancel the previous tone
      * and play the new one.
diff --git a/radio/aidl/android/hardware/radio/voice/IRadioVoiceResponse.aidl b/radio/aidl/android/hardware/radio/voice/IRadioVoiceResponse.aidl
index f3cf5fb..d126fc1 100644
--- a/radio/aidl/android/hardware/radio/voice/IRadioVoiceResponse.aidl
+++ b/radio/aidl/android/hardware/radio/voice/IRadioVoiceResponse.aidl
@@ -468,6 +468,20 @@
 
     /**
      * @param info Response info struct containing response type, serial no. and error
+     * @param enable true for "vonr enabled" and false for "vonr disabled"
+     *
+     * Valid errors returned:
+     *   RadioError:NONE
+     *   RadioError:RADIO_NOT_AVAILABLE
+     *   RadioError:MODEM_ERR
+     *   RadioError:INTERNAL_ERR
+     *   RadioError:NO_MEMORY
+     *   RadioError:REQUEST_NOT_SUPPORTED
+     */
+    void isVoNrEnabledResponse(in RadioResponseInfo info, in boolean enable);
+
+    /**
+     * @param info Response info struct containing response type, serial no. and error
      *
      * Valid errors returned:
      *   RadioError:NONE
@@ -694,6 +708,20 @@
      *   RadioError:NONE
      *   RadioError:RADIO_NOT_AVAILABLE
      *   RadioError:INVALID_ARGUMENTS
+     *   RadioError:MODEM_ERR
+     *   RadioError:INTERNAL_ERR
+     *   RadioError:NO_MEMORY
+     *   RadioError:REQUEST_NOT_SUPPORTED
+     */
+    void setVoNrEnabledResponse(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_ARGUMENTS
      *   RadioError:NO_RESOURCES
      *   RadioError:NO_MEMORY
      *   RadioError:SYSTEM_ERR