diff -r 7d48bed6ce0c -r 987c9837762f convergedcallengine/csplugin/inc/mcspconferencestatusobserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/convergedcallengine/csplugin/inc/mcspconferencestatusobserver.h	Wed Sep 01 12:15:03 2010 +0100
@@ -0,0 +1,55 @@
+/*
+* Copyright (c) 2008 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 MCSPConferenceStatusObserver class
+*
+*/
+
+
+
+#ifndef MCSPCONFERENCESTATUSOBSERVER_H
+#define MCSPCONFERENCESTATUSOBSERVER_H
+
+
+// CLASS DECLARATION
+
+/**
+*  Virtual interface for monitoring conference status.
+*
+*  @since S60 5.0 
+*/
+NONSHARABLE_CLASS(MCSPConferenceStatusObserver)
+    {
+    public:
+
+        /* Security setting event value */  
+        enum TCSPConferenceState
+            {
+            /** The conference call is in the idle state. */
+            ECSPConferenceIdle,
+            /** The conference call is in the active, connected state. */
+            ECSPConferenceActive,
+            /** The conference call is in the held, connected state. */
+            ECSPConferenceHold,
+            };
+        
+        /**
+        * Informs conference call state change.
+        * @since S60 5.0 
+        */    
+        virtual void NotifyStateChange(
+                MCSPConferenceStatusObserver::TCSPConferenceState aStatus ) = 0;
+
+    };
+
+#endif // MCSPCONFERENCESTATUSOBSERVER_H