Merge "Fix muting voice call" into main
diff --git a/services/core/java/com/android/server/audio/AudioService.java b/services/core/java/com/android/server/audio/AudioService.java
index 6daf0d0..c3d09bb 100644
--- a/services/core/java/com/android/server/audio/AudioService.java
+++ b/services/core/java/com/android/server/audio/AudioService.java
@@ -9211,7 +9211,7 @@
                 index = 1;
             }
 
-            if (replaceStreamBtSco()) {
+            if (replaceStreamBtSco() && index != 0) {
                 index = (int) (mIndexMin + (index * 10 - mIndexMin) / getIndexStepFactor() + 5)
                         / 10;
             }