diff --git a/res/drawable/stat_sys_signal_0.png b/res/drawable/stat_sys_signal_0.png
index cb7b7b34b..0b7a04f44 100644
Binary files a/res/drawable/stat_sys_signal_0.png and b/res/drawable/stat_sys_signal_0.png differ
diff --git a/res/layout/conf_callee.xml b/res/layout/conf_callee.xml
index e46979919..f2fa06a33 100644
--- a/res/layout/conf_callee.xml
+++ b/res/layout/conf_callee.xml
@@ -23,6 +23,7 @@
 	  android:layout_width="wrap_content" android:layout_height="fill_parent"
 	  android:layout_centerVertical="true">
 	  	<TextView android:id="@+id/status_label" style="@style/callee_status" />
+	  	<ImageView android:layout_width="wrap_content" android:layout_height="wrap_content" android:id="@+id/QoS" android:src="@drawable/stat_sys_signal_0" android:layout_alignParentBottom="true" android:layout_alignParentLeft="true" /> 
 	  	<ImageView android:id="@+id/callee_status_paused" style="@style/callee_status" android:src="@drawable/conf_status_paused" android:visibility="gone"/>
 		<ImageView android:id="@+id/callee_status_secured" style="@style/callee_status" android:src="@drawable/conf_secured" android:visibility="gone"/>
 		<ImageView android:id="@+id/callee_status_maybe_secured" style="@style/callee_status" android:src="@drawable/conf_maybe_secured" android:visibility="gone"/>
diff --git a/src/org/linphone/AbstractCalleesActivity.java b/src/org/linphone/AbstractCalleesActivity.java
index 0147ba002..48d5e0b65 100644
--- a/src/org/linphone/AbstractCalleesActivity.java
+++ b/src/org/linphone/AbstractCalleesActivity.java
@@ -64,6 +64,8 @@ public abstract class AbstractCalleesActivity extends ListActivity implements Li
 
 	private Set<Chronometer> mChronometers = new HashSet<Chronometer>();
 	
+	private float oldQuality = 0;
+	private Runnable mCallQualityUpdater;
 	@Override
 	/**
 	 * Called by the child classes AFTER their own onCreate.
@@ -210,6 +212,26 @@ public abstract class AbstractCalleesActivity extends ListActivity implements Li
 			timer.setBase(SystemClock.elapsedRealtime() - 1000 * callDuration);
 			timer.start();
 		}
+		
+		protected final void registerCallQualityListener(final View v, final LinphoneCall call) {
+			final Handler callqualityHandler = new Handler();
+			callqualityHandler.postDelayed(mCallQualityUpdater = new Runnable(){
+				public void run() {
+					if (call==null){
+						mCallQualityUpdater=null;
+						return;
+					}
+					
+					float newQuality = call.getCurrentQuality();
+					if ((int) newQuality != oldQuality){
+						updateQualityOfSignalIcon(v, newQuality);
+						oldQuality = newQuality;
+					}
+					
+					callqualityHandler.postDelayed(this, 1000);
+				}
+			},1000);
+		}
 	}
 
 	@Override
@@ -248,4 +270,29 @@ public abstract class AbstractCalleesActivity extends ListActivity implements Li
 			}
 		});
 	}
+	
+	void updateQualityOfSignalIcon(View v, float quality)
+	{
+		ImageView qos = (ImageView) v.findViewById(R.id.QoS);
+		if (quality >= 4) // Good Quality
+		{
+			qos.setImageDrawable(getResources().getDrawable(R.drawable.stat_sys_signal_4));
+		}
+		else if (quality >= 3) // Average quality
+		{
+			qos.setImageDrawable(getResources().getDrawable(R.drawable.stat_sys_signal_3));
+		}
+		else if (quality >= 2) // Low quality
+		{
+			qos.setImageDrawable(getResources().getDrawable(R.drawable.stat_sys_signal_2));
+		}
+		else if (quality >= 1) // Very low quality
+		{
+			qos.setImageDrawable(getResources().getDrawable(R.drawable.stat_sys_signal_1));
+		}
+		else // Worst quality
+		{
+			qos.setImageDrawable(getResources().getDrawable(R.drawable.stat_sys_signal_0));
+		}
+	}
 }
\ No newline at end of file
diff --git a/src/org/linphone/ConferenceDetailsActivity.java b/src/org/linphone/ConferenceDetailsActivity.java
index 07c2fd64f..08bcea633 100644
--- a/src/org/linphone/ConferenceDetailsActivity.java
+++ b/src/org/linphone/ConferenceDetailsActivity.java
@@ -101,6 +101,8 @@ public class ConferenceDetailsActivity extends AbstractCalleesActivity  {
 			setCalleePicture(pictureView, address);
 
 			registerCallDurationTimer(v, call);
+			registerCallQualityListener(v, call);
+			
 			return v;
 		}
 
diff --git a/src/org/linphone/IncallActivity.java b/src/org/linphone/IncallActivity.java
index 6711cd0a3..91cda16cd 100644
--- a/src/org/linphone/IncallActivity.java
+++ b/src/org/linphone/IncallActivity.java
@@ -456,6 +456,7 @@ public class IncallActivity extends AbstractCalleesActivity implements
 
 			boolean statusPaused = state== State.Paused || state == State.PausedByRemote;
 			setVisibility(v, R.id.callee_status_paused, statusPaused);
+			setVisibility(v, R.id.QoS, !statusPaused);
 
 			final OnLongClickListener showCallActionsLongListener = new OnLongClickListener() {
 				public boolean onLongClick(View v) {
@@ -538,6 +539,7 @@ public class IncallActivity extends AbstractCalleesActivity implements
 			}
 
 			registerCallDurationTimer(v, call);
+			registerCallQualityListener(v, call);
 
 			enableView(v, R.id.callee_status_details, showCallActionsSimpleListener, true);