diff --git a/testapps/TelephonyRegistryTestApp/AndroidManifest.xml b/testapps/TelephonyRegistryTestApp/AndroidManifest.xml
index 5f19509..708ea66 100644
--- a/testapps/TelephonyRegistryTestApp/AndroidManifest.xml
+++ b/testapps/TelephonyRegistryTestApp/AndroidManifest.xml
@@ -18,6 +18,7 @@
           package="com.android.phone.testapps.telephonyregistry">
     <uses-permission android:name="android.permission.ACCESS_COARSE_LOCATION"/>
     <uses-permission android:name="android.permission.READ_PHONE_STATE"/>
+    <uses-permission android:name="android.permission.READ_PRIVILEGED_PHONE_STATE"/>
     <application android:label="TelephonyRegistryTestApp">
         <activity
             android:name=".TelephonyRegistryTestApp"
diff --git a/testapps/TelephonyRegistryTestApp/src/com/android/phone/testapps/telephonyregistry/TelephonyRegistryTestApp.java b/testapps/TelephonyRegistryTestApp/src/com/android/phone/testapps/telephonyregistry/TelephonyRegistryTestApp.java
index 8593245..74cafcd 100644
--- a/testapps/TelephonyRegistryTestApp/src/com/android/phone/testapps/telephonyregistry/TelephonyRegistryTestApp.java
+++ b/testapps/TelephonyRegistryTestApp/src/com/android/phone/testapps/telephonyregistry/TelephonyRegistryTestApp.java
@@ -54,7 +54,7 @@
         put(PhoneStateListener.LISTEN_PRECISE_CALL_STATE, "PRECISE_CALL_STATE");
         put(PhoneStateListener.LISTEN_PRECISE_DATA_CONNECTION_STATE,
                 "PRECISE_DATA_CONNECTION_STATE");
-        put(PhoneStateListener.LISTEN_VOLTE_STATE, "VOLTE_STATE");
+        put(PhoneStateListener.LISTEN_SRVCC_STATE_CHANGED, "SRVCC_STATE");
         put(PhoneStateListener.LISTEN_CARRIER_NETWORK_CHANGE, "CARRIER_NETWORK_CHANGE");
         put(PhoneStateListener.LISTEN_VOICE_ACTIVATION_STATE, "VOICE_ACTIVATION_STATE");
         put(PhoneStateListener.LISTEN_DATA_ACTIVATION_STATE, "DATA_ACTIVATION_STATE");
@@ -71,6 +71,11 @@
             notify("onCellInfoChanged", cellInfo);
         }
 
+        @Override
+        public void onSrvccStateChanged(int srvccState) {
+            notify("onSrvccStateChanged", srvccState);
+        }
+
         private void notify(String method, Object data) {
             Notification.Builder builder = new Notification.Builder(TelephonyRegistryTestApp.this,
                     NOTIFICATION_CHANNEL);