diff --git a/AndroidManifest.xml b/AndroidManifest.xml
index d649a1660..12556e399 100644
--- a/AndroidManifest.xml
+++ b/AndroidManifest.xml
@@ -122,7 +122,8 @@
 		<receiver android:name="org.linphone.PhoneStateChangedReceiver">
 			<intent-filter><action android:name="android.intent.action.PHONE_STATE" /></intent-filter>
 		</receiver>
-		
+		<receiver android:name="KeepAliveHandler" >
+        </receiver>
 		<!-- Needed for push notification -->
 		<receiver android:name="org.linphone.gcm.GCMReceiver" android:permission="com.google.android.c2dm.permission.SEND" >
 		  <intent-filter>
diff --git a/src/org/linphone/KeepAliveReceiver.java b/src/org/linphone/KeepAliveReceiver.java
index ed5c9b980..321953df1 100644
--- a/src/org/linphone/KeepAliveReceiver.java
+++ b/src/org/linphone/KeepAliveReceiver.java
@@ -25,7 +25,9 @@ import android.content.Context;
 import android.content.Intent;
 
 
-
+/*
+ * Purpose of this receiver is to disable keep alives when screen is off
+ * */
 public class KeepAliveReceiver extends BroadcastReceiver {
 
 	@Override
diff --git a/src/org/linphone/LinphoneManager.java b/src/org/linphone/LinphoneManager.java
index 03ecb2e99..9e3a033fb 100644
--- a/src/org/linphone/LinphoneManager.java
+++ b/src/org/linphone/LinphoneManager.java
@@ -576,7 +576,8 @@ public final class LinphoneManager implements LinphoneCoreListener {
 					mLc.iterate();
 				}
 			};
-			mTimer.scheduleAtFixedRate(lTask, 0, 20); 
+			/*use schedule instead of scheduleAtFixedRate to avoid iterate from being call in burst after cpu wake up*/
+			mTimer.schedule(lTask, 0, 20); 
 
 			IntentFilter lFilter = new IntentFilter(Intent.ACTION_SCREEN_ON);
 	        lFilter.addAction(Intent.ACTION_SCREEN_OFF);
diff --git a/src/org/linphone/LinphoneService.java b/src/org/linphone/LinphoneService.java
index 257ea0b35..8a2b46486 100644
--- a/src/org/linphone/LinphoneService.java
+++ b/src/org/linphone/LinphoneService.java
@@ -40,6 +40,7 @@ import org.linphone.mediastream.Log;
 import org.linphone.mediastream.Version;
 
 import android.app.Activity;
+import android.app.AlarmManager;
 import android.app.Notification;
 import android.app.NotificationManager;
 import android.app.PendingIntent;
@@ -58,6 +59,7 @@ import android.net.wifi.WifiManager.WifiLock;
 import android.os.Build;
 import android.os.Handler;
 import android.os.IBinder;
+import android.os.SystemClock;
 import android.preference.PreferenceManager;
 import android.provider.MediaStore;
 
@@ -112,6 +114,7 @@ public final class LinphoneService extends Service implements LinphoneServiceLis
 	private Notification mCustomNotif;
 	private int mMsgNotifCount;
 	private PendingIntent mNotifContentIntent;
+	private PendingIntent mkeepAlivePendingIntent;
 	private String mNotificationTitle;
 
 
@@ -198,6 +201,13 @@ public final class LinphoneService extends Service implements LinphoneServiceLis
 		}
 		
 		LinphoneManager.getLc().setPresenceInfo(0, "", OnlineStatus.Online);
+		//make sure the application will at least wakes up every 10 mn
+		Intent intent = new Intent(this, KeepAliveHandler.class);
+	    mkeepAlivePendingIntent = PendingIntent.getBroadcast(this, 0, intent, PendingIntent.FLAG_ONE_SHOT);
+		((AlarmManager) this.getSystemService(Context.ALARM_SERVICE)).setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP
+																							, SystemClock.elapsedRealtime()+600000
+																							, 600000
+																							, mkeepAlivePendingIntent);
 	}
 
 	private enum IncallIconState {INCALL, PAUSE, VIDEO, IDLE}
@@ -474,6 +484,7 @@ public final class LinphoneService extends Service implements LinphoneServiceLis
 	    mNM.cancel(INCALL_NOTIF_ID);
 	    mNM.cancel(MESSAGE_NOTIF_ID);
 	    mWifiLock.release();
+	    ((AlarmManager) this.getSystemService(Context.ALARM_SERVICE)).cancel(mkeepAlivePendingIntent);
 		super.onDestroy();
 	}
 	
diff --git a/submodules/belle-sip b/submodules/belle-sip
index ecfff5f64..43ad4169d 160000
--- a/submodules/belle-sip
+++ b/submodules/belle-sip
@@ -1 +1 @@
-Subproject commit ecfff5f64d95723ed194bae09b96509aeb778159
+Subproject commit 43ad4169d316649ed2e31eba1f9b19792d5cc492