diff --git a/app/src/main/java/org/communiquons/android/comunic/client/ui/activities/CallActivity.java b/app/src/main/java/org/communiquons/android/comunic/client/ui/activities/CallActivity.java
index 651ca22..87dc843 100644
--- a/app/src/main/java/org/communiquons/android/comunic/client/ui/activities/CallActivity.java
+++ b/app/src/main/java/org/communiquons/android/comunic/client/ui/activities/CallActivity.java
@@ -98,6 +98,7 @@ public class CallActivity extends BaseActivity implements SignalExchangerCallbac
      */
     private boolean mStopped = false;
     private boolean mIsCameraStopped = false;
+    private boolean mIsMicrophoneStopped = false;
 
     /**
      * Connections list
@@ -121,6 +122,7 @@ public class CallActivity extends BaseActivity implements SignalExchangerCallbac
     private SurfaceViewRenderer mLocalVideoView;
     private View mButtonsView;
     private ImageButton mStopCameraButton;
+    private ImageButton mStopMicrophoneButton;
 
 
     @Override
@@ -216,6 +218,8 @@ public class CallActivity extends BaseActivity implements SignalExchangerCallbac
         mStopCameraButton = findViewById(R.id.stopCameraButton);
         mStopCameraButton.setOnClickListener(v -> toggleStopCamera());
 
+        mStopMicrophoneButton = findViewById(R.id.stopMicrophoneButton);
+        mStopMicrophoneButton.setOnClickListener(v -> toggleStopMicrophone());
     }
 
 
@@ -487,6 +491,16 @@ public class CallActivity extends BaseActivity implements SignalExchangerCallbac
                 mIsCameraStopped ? R.drawable.ic_videocam_off : R.drawable.ic_videocam));
     }
 
+    private void toggleStopMicrophone(){
+        mIsMicrophoneStopped = !mIsMicrophoneStopped;
+
+        for(CallPeerConnection c : mList)
+            c.getPeerConnectionClient().setAudioEnabled(!mIsMicrophoneStopped);
+
+        mStopMicrophoneButton.setImageDrawable(UiUtils.getDrawable(this,
+                mIsMicrophoneStopped ? R.drawable.ic_mic_off : R.drawable.ic_mic));
+    }
+
     private void switchButtonsVisibility(){
 
         boolean show = !getSupportActionBar().isShowing();
diff --git a/app/src/main/res/drawable/ic_mic.xml b/app/src/main/res/drawable/ic_mic.xml
new file mode 100644
index 0000000..29bdc0d
--- /dev/null
+++ b/app/src/main/res/drawable/ic_mic.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M12,14c1.66,0 2.99,-1.34 2.99,-3L15,5c0,-1.66 -1.34,-3 -3,-3S9,3.34 9,5v6c0,1.66 1.34,3 3,3zM17.3,11c0,3 -2.54,5.1 -5.3,5.1S6.7,14 6.7,11L5,11c0,3.41 2.72,6.23 6,6.72L11,21h2v-3.28c3.28,-0.48 6,-3.3 6,-6.72h-1.7z"/>
+</vector>
diff --git a/app/src/main/res/drawable/ic_mic_off.xml b/app/src/main/res/drawable/ic_mic_off.xml
new file mode 100644
index 0000000..89bb76a
--- /dev/null
+++ b/app/src/main/res/drawable/ic_mic_off.xml
@@ -0,0 +1,9 @@
+<vector xmlns:android="http://schemas.android.com/apk/res/android"
+    android:width="24dp"
+    android:height="24dp"
+    android:viewportWidth="24.0"
+    android:viewportHeight="24.0">
+    <path
+        android:fillColor="#FF000000"
+        android:pathData="M19,11h-1.7c0,0.74 -0.16,1.43 -0.43,2.05l1.23,1.23c0.56,-0.98 0.9,-2.09 0.9,-3.28zM14.98,11.17c0,-0.06 0.02,-0.11 0.02,-0.17L15,5c0,-1.66 -1.34,-3 -3,-3S9,3.34 9,5v0.18l5.98,5.99zM4.27,3L3,4.27l6.01,6.01L9.01,11c0,1.66 1.33,3 2.99,3 0.22,0 0.44,-0.03 0.65,-0.08l1.66,1.66c-0.71,0.33 -1.5,0.52 -2.31,0.52 -2.76,0 -5.3,-2.1 -5.3,-5.1L5,11c0,3.41 2.72,6.23 6,6.72L11,21h2v-3.28c0.91,-0.13 1.77,-0.45 2.54,-0.9L19.73,21 21,19.73 4.27,3z"/>
+</vector>
diff --git a/app/src/main/res/layout/activity_call.xml b/app/src/main/res/layout/activity_call.xml
index e13d783..9bbdba6 100644
--- a/app/src/main/res/layout/activity_call.xml
+++ b/app/src/main/res/layout/activity_call.xml
@@ -59,8 +59,8 @@
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_weight="1"
-            android:layout_marginStart="8dp"
-            android:layout_marginEnd="8dp"
+            android:layout_marginStart="0dp"
+            android:layout_marginEnd="0dp"
             android:contentDescription="@string/action_switch_camera"
             android:src="@drawable/ic_camera_switch"
             android:tint="@android:color/white" />
@@ -71,8 +71,8 @@
             android:layout_width="0dp"
             android:layout_height="wrap_content"
             android:layout_weight="1"
-            android:layout_marginStart="8dp"
-            android:layout_marginEnd="8dp"
+            android:layout_marginStart="0dp"
+            android:layout_marginEnd="0dp"
             android:contentDescription="@string/action_stop_camera"
             android:src="@drawable/ic_videocam"
             android:tint="@android:color/white" />
@@ -82,11 +82,25 @@
             android:layout_width="0dp"
             android:layout_weight="1"
             android:layout_height="wrap_content"
+            android:layout_marginStart="8dp"
+            android:layout_marginEnd="8dp"
             android:backgroundTint="@color/holo_red_dark"
             android:contentDescription="@string/action_hang_up"
             android:src="@drawable/ic_call"
             android:tint="@android:color/white" />
 
+        <ImageButton
+            android:id="@+id/stopMicrophoneButton"
+            style="@style/Widget.AppCompat.Button.Borderless"
+            android:layout_width="0dp"
+            android:layout_height="wrap_content"
+            android:layout_weight="1"
+            android:layout_marginStart="0dp"
+            android:layout_marginEnd="0dp"
+            android:contentDescription="@string/action_stop_camera"
+            android:src="@drawable/ic_mic"
+            android:tint="@android:color/white" />
+
 
 
     </LinearLayout>