diff -r 000000000000 -r 29b1cd4cb562 atext/server/inc/atextcommonobserver.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/atext/server/inc/atextcommonobserver.h	Fri Jan 15 08:13:17 2010 +0200
@@ -0,0 +1,68 @@
+/*
+* 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: 
+*
+*/
+
+
+#ifndef C_ATEXTCOMMONOBSERVER_H
+#define C_ATEXTCOMMONOBSERVER_H
+
+#include <ecom/ecom.h>
+
+class CATExtCommonBase;
+
+/**
+ *  The interface for AT Extension Plugin to interact with plugins.
+ *
+ *  @since S60 v5.0
+ */
+class MATExtCommonObserver
+    {
+
+public:
+
+    /**
+     * Called by concrete extension Plugin to inform that mode status has
+     * changed.
+     *
+     * @since S60 5.0
+     * @param aMode New mode
+     * @return Symbian error code on error, KErrNone otherwise
+     */
+    virtual TInt SendModeStatusChange( TUint aMode ) = 0;
+
+    /**
+     * Called by concrete extension plugin to inform that NVRAM status has
+     * changed.
+     *
+     * @since S60 5.0
+     * @param aNvram New NVRAM status. The new settings (delimited by "|")
+     *               must differ from the Hayes defaults.
+     * @return Symbian error code on error, KErrNone otherwise
+     */
+    virtual TInt SendNvramStatusChange( const TDesC8& aNvram ) = 0;
+
+    /**
+     * Called by the destructor of CATExtPluginBase.
+     * A concrete service provider implementation should not touch this.
+     *
+     * @param aPlugin Plugin that was closed
+     * @return Symbian error code on error, KErrNone otherwise
+     */
+    virtual TInt ATExtPluginClosed( CATExtCommonBase* aPlugin ) = 0;
+
+    };
+
+#endif  // C_ATEXTCOMMONOBSERVER_H