diff -r 7d48bed6ce0c -r 987c9837762f convergedcallengine/csplugin/inc/mcsplinestatusobserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/convergedcallengine/csplugin/inc/mcsplinestatusobserver.h	Wed Sep 01 12:15:03 2010 +0100
@@ -0,0 +1,53 @@
+/*
+* Copyright (c) 2007 Nokia Corporation and/or its subsidiary(-ies). 
+* All rights reserved.
+* This component and the accompanying materials are made available
+* under the terms of "Eclipse Public License v1.0"
+* which accompanies this distribution, and is available
+* at the URL "http://www.eclipse.org/legal/epl-v10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:  Header file for MCSPLineStatusObserver class
+*
+*/
+
+
+
+#ifndef MCSPLINESTATUSOBSERVER_H
+#define MCSPLINESTATUSOBSERVER_H
+
+//INCLUDES
+#include <etelmm.h>
+#include "rcsplinecontainer.h"
+
+// CLASS DECLARATION
+
+/**
+*  Virtual interface for monitoring line status changes.
+*
+*  @since S60 5.0
+*/
+NONSHARABLE_CLASS(MCSPLineStatusObserver)
+    {
+    public:
+
+        /**
+        * Informs about line status changes.
+        * @since S60 5.0
+        * @param aLine the line that is monitored for events
+        * @param aLineId the line id 
+        * @param aCallStatus the line status
+        */    
+        virtual void LineStatusChanged( RMobileLine& aLine,
+                RCSPLineContainer::TCSPLineId aLineId, 
+                RMobileCall::TMobileCallStatus& aCallStatus ) = 0;
+
+    };
+
+#endif // MCSPLINESTATUSOBSERVER_H
+
+//End of file