diff --git a/InCallUI/src/com/android/incallui/CallButtonPresenter.java b/InCallUI/src/com/android/incallui/CallButtonPresenter.java
index b5002db..41d6e9c 100644
--- a/InCallUI/src/com/android/incallui/CallButtonPresenter.java
+++ b/InCallUI/src/com/android/incallui/CallButtonPresenter.java
@@ -300,11 +300,13 @@
     }
 
     public void addCallClicked() {
-        // Automatically mute the current call
-        mAutomaticallyMuted = true;
-        mPreviousMuteState = AudioModeProvider.getInstance().getMute();
-        // Simulate a click on the mute button
-        muteClicked(true);
+        if (!QtiImsExtUtils.isCarrierOneSupported()) {
+            // Automatically mute the current call
+            mAutomaticallyMuted = true;
+            mPreviousMuteState = AudioModeProvider.getInstance().getMute();
+            // Simulate a click on the mute button
+            muteClicked(true);
+        }
         TelecomAdapter.getInstance().addCall();
     }