diff -r f742655b05bf -r d38647835c2e convergedconnectionhandler/cchclientapi/cchuinotif/inc/cchuicallstateobserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/convergedconnectionhandler/cchclientapi/cchuinotif/inc/cchuicallstateobserver.h	Wed Sep 01 12:29:57 2010 +0100
@@ -0,0 +1,43 @@
+/*
+* Copyright (c) 2009 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: CCH UI call state callback observer
+*
+*/
+
+#ifndef M_CCHUICALLSTATEOBSERVER_H
+#define M_CCHUICALLSTATEOBSERVER_H
+
+
+/**
+ *  MCchUiCallStateObserver
+ *
+ *  @since S60 v5.0
+ */
+class MCchUiCallStateObserver
+    {
+
+public:
+
+    /**
+     * Callback for notifying of a call state change
+     *
+     * @since S60 v5.0
+     * @param  aCallState state from CTSYDomainPSKeys.h
+     */
+    virtual void CallStateChanged( TInt aCallState ) = 0;
+    
+    };
+
+
+#endif // M_CCHUICALLSTATEOBSERVER_H