diff --git a/mobile/android/geckoview/src/main/java/org/mozilla/gecko/GeckoAppShell.java b/mobile/android/geckoview/src/main/java/org/mozilla/gecko/GeckoAppShell.java
index 8cfdf797ba06..92819317c687 100644
--- a/mobile/android/geckoview/src/main/java/org/mozilla/gecko/GeckoAppShell.java
+++ b/mobile/android/geckoview/src/main/java/org/mozilla/gecko/GeckoAppShell.java
@@ -1996,6 +1996,41 @@ public class GeckoAppShell {
         return Integer.parseInt(prop);
     }
 
+    static private int sPreviousAudioMode = -2;
+
+    @WrapForJNI(calledFrom = "any")
+    public static void setCommunicationAudioModeOn(final boolean on) {
+        final AudioManager am = (AudioManager)getApplicationContext()
+                                .getSystemService(Context.AUDIO_SERVICE);
+        if (am == null) {
+            return;
+        }
+
+        if (sPreviousAudioMode == AudioManager.MODE_INVALID) {
+            sPreviousAudioMode = am.getMode();
+        }
+
+        try {
+            if (on)  {
+                Log.e(LOGTAG, "Setting communication mode ON");
+                sPreviousAudioMode = am.getMode();
+                am.startBluetoothSco();
+                am.setBluetoothScoOn(true);
+                am.setMode(AudioManager.MODE_IN_COMMUNICATION);
+            } else {
+                Log.e(LOGTAG, "Setting communication mode OFF");
+                am.setMode(sPreviousAudioMode);
+                sPreviousAudioMode = AudioManager.MODE_INVALID;
+                am.stopBluetoothSco();
+                am.setBluetoothScoOn(false);
+            }
+        } catch (SecurityException e) {
+            Log.e(LOGTAG, "could not set communication mode", e);
+        }
+
+        am.setSpeakerphoneOn(!on);
+    }
+
     private static String getLanguageTag(final Locale locale) {
         final StringBuilder out = new StringBuilder(locale.getLanguage());
         final String country = locale.getCountry();