/*

* Copyright (c) 2006 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 MTelDMCallStateObserver class.

*                

*

*/

#ifndef MTELDMSTATEOBSERVER_H

#define MTELDMSTATEOBSERVER_H

// INCLUDES

//CLASS DECLARATION

/**

* Call state mode observer.

*

*  @since 3.1

*/

class MTelDMCallStateObserver 

    {

    public: // New functions

        /**

        * Notify changes of calls

        * @param  Call state from TelephonyInternalPSKeys.h

        * @return none

        */

        virtual void CallStateChangedL( TInt aCallState ) = 0;

     };

#endif      // MTELDMSTATEOBSERVER_H

// End of File