Add restart linphone core method

src/org/linphone/LinphoneManager.java

@@ -566,9 +566,26 @@ public class LinphoneManager implements LinphoneCoreListener, LinphoneChatMessag
 		}
 	}
 
-	public void resetLinphoneCore(Context c){
+	public synchronized final void destroyLinphoneCore(Context c) {
-		destroyLinphoneCore(c);
+		sExited = true;
-		startLibLinphone(c);
+		BluetoothManager.getInstance().destroy();
+		try {
+			mTimer.cancel();
+			mLc.destroy();
+		}
+		catch (RuntimeException e) {
+			e.printStackTrace();
+		}
+		finally {
+			mServiceContext.unregisterReceiver(instance.mKeepAliveReceiver);
+			mLc = null;
+		}
+	}
+
+	public void restartLinphoneCore(Context context){
+		destroyLinphoneCore(context);
+		startLibLinphone(context);
+		sExited = true;
 	}
 
 	private synchronized void startLibLinphone(Context c) {