diff -r 000000000000 -r f0cf47e981f9 mmshplugins/mmshaoplugin/inc/mmustsypropertyobserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/mmshplugins/mmshaoplugin/inc/mmustsypropertyobserver.h	Thu Dec 17 08:44:37 2009 +0200
@@ -0,0 +1,39 @@
+/*
+* Copyright (c) 2005-2007 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:  The observer class for observer monitor call states change
+*
+*/
+
+
+#ifndef MMUSTSYPROPERTYOBSERVER_H_
+#define MMUSTSYPROPERTYOBSERVER_H_
+
+#include <e32base.h>
+
+/**
+ * The observer class for monitor RMobileCall state change 
+ */
+class MMusTsyPropertyObserver
+    {
+public:
+    /**
+     * Notify call state changed
+     * @param aVal The call status
+     * @param aCallName The name of the call
+     */
+    virtual void NotifyCallStateChanged( NMusSessionInformationApi::TMusCallEvent aVal, TName& aCallName ) = 0;
+    };
+
+#endif /*MMUSPROPERTYOBSERVER_H_*/
+