diff --git a/src/com/android/services/telephony/TelephonyConnection.java b/src/com/android/services/telephony/TelephonyConnection.java
index 10c5e4a..0c3974a 100644
--- a/src/com/android/services/telephony/TelephonyConnection.java
+++ b/src/com/android/services/telephony/TelephonyConnection.java
@@ -192,17 +192,6 @@
         public void onConferenceParticipantsChanged(List<ConferenceParticipant> participants) {
             updateConferenceParticipants(participants);
         }
-
-        /**
-         * Used by the {@link com.android.internal.telephony.Connection} to report a change in the
-         * substate of the current call
-         *
-         * @param callSubstate The call substate.
-         */
-        @Override
-        public void onCallSubstateChanged(int callSubstate) {
-            setCallSubstate(callSubstate);
-        }
     };
 
     private com.android.internal.telephony.Connection mOriginalConnection;
@@ -544,7 +533,6 @@
         setWifi(mOriginalConnection.isWifi());
         setVideoProvider(mOriginalConnection.getVideoProvider());
         setAudioQuality(mOriginalConnection.getAudioQuality());
-        setCallSubstate(mOriginalConnection.getCallSubstate());
 
         if (isImsConnection()) {
             mWasImsConnection = true;