diff -r f742655b05bf -r d38647835c2e callcontinuity/vcc/inc/cvcctransferprovider.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/callcontinuity/vcc/inc/cvcctransferprovider.h	Wed Sep 01 12:29:57 2010 +0100
@@ -0,0 +1,175 @@
+/*
+* 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:   Sends and receives DTMF tones
+*
+*/
+
+
+
+#ifndef CVCCTRANSFERPROVIDER_H
+#define CVCCTRANSFERPROVIDER_H
+
+class CVccPerformer;
+
+#include <mccptransferprovider.h>           // MCCPTransferProvider
+#include <mccptransferobserver.h>           // MCCPTransferObserver
+
+/**
+ *  DTMF provider.
+ *  Contains DTMF providers from call providers and forward all requests between
+ *  them and CCE
+ *
+ *  @lib vccperformer.lib
+ *  @since S60 v3.2
+ */
+class CVccTransferProvider : public CBase,
+                             public MCCPTransferProvider,
+                             public MCCPTransferObserver
+    {
+
+public:
+
+    /**
+	 * Two-phased constructor.
+     * @param aProviders Service providers
+     * @param aObserver
+     * @param aDirector Reference to Director object 
+	 */
+	static CVccTransferProvider* NewL ( CVccPerformer* aCall );
+    
+    /**
+    * Destructor.
+    */
+    virtual ~CVccTransferProvider(); 
+
+    /**
+	* Attended transfer to given call recipient.
+	* There needs to exist two calls. a call between A-B and A-C. A wants to transfer the call to B-C. 
+	* Both calls A-B and A-C will be disconnected after transfer.
+	* In above case C will be the aTransferTargetCall call recipient. B is the recipient of the 
+	* current call between A-B - called on A's call object transfer provider. 
+	* The A-B call is on hold.
+    * Actual request result indication comes via observer classes
+	* @param aTransferTargetCall Call containing the transfer target info.
+    * @return KErrNone if request was started succesfully. 
+    * @return KErrNotReady if call is not in connected or on-hold state.
+    * @return KErrArgument transfer traget address was illegal.
+    * @pre Call state is MCCPCallObserver::ECCPStateConnected or MCCPCallObserver::ECCPStateHold
+	* @since S60 3.2
+	*/
+	TInt AttendedTransfer( MCCPCall& aTransferTargetCall );
+
+    /**
+	* Attended transfer to given address. There does not need to be 
+	* a current call between the given transfer target.
+    * Actual request result indication comes via observer class
+	* @param aTransferTarget Transfer target address
+    * @return KErrNone if request was started succesfully. 
+    * @return KErrNotReady if call is not in connected or on-hold state.
+    * @return KErrArgument transfer address was illegal.
+    * @pre Call state is MCCPCallObserver::ECCPStateConnected or MCCPCallObserver::ECCPStateHold
+	* @since S60 3.2
+	*/
+	TInt AttendedTransfer( const TDesC& aTransferTarget );
+
+	/**
+	* Unattended transfer. Call is requested to be transferred to given address.
+	* After MCCPTransferObserver::ECCPRemoteTransferring event current call will be 
+	* disconnected and no transfer status is checked from the operation. 
+    * Actual request result indication comes via observer classes
+	* @since S60 3.2
+	* @param aTransferTarget Address of the target
+    * @return KErrNone if request was started succesfully. 
+    * @return KErrNotReady if call is not in connected or on-hold state.
+    * @return KErrArgument transfer address was illegal.
+    * @pre Call state is MCCPCallObserver::ECCPStateConnected or MCCPCallObserver::ECCPStateHold
+	*/
+	TInt UnattendedTransfer( const TDesC& aTransferTarget );
+
+	/**
+	* Accept incoming call transfer request from the call remote party.
+    * Actual request result indication comes via observer class
+	* @since Series 60 3.2
+	* @param aAccept ETrue - accept transfer, EFalse do not accept transfer request.
+    * @return KErrNone if request was started succesfully. 
+    * @return KErrNotReady if call is not in connected or on-hold state.
+    * @return KErrArgument transfer address was illegal.
+    * @pre Call state is MCCPCallObserver::ECCPStateConnected or MCCPCallObserver::ECCPStateHold
+	* @pre MCCPObserver::CallCreated is called with the newly created call
+	*/
+	TInt AcceptTransfer( const TBool aAccept );
+	  
+    /**
+    * When the other end of the call has requested call transfer to third party it is notified to 
+    * MCCPTransferObserver::TransferEventOccurred(MCCPTransferObserver::ECCPRemoteTransferring).
+    * The new recipient of the call can be fetched via this method.
+	* @since Series 60 3.2
+	* @param none
+	* @return new recipient for the call after transfer
+	* @return KNullDesC if no transfer target is available
+    * @pre Call state is MCCPCallObserver::ECCPStateConnected or MCCPCallObserver::ECCPStateHold
+	* @pre MCCPObserver::CallCreated is called with the newly created call
+	*/
+	const TDesC& TransferTarget() const;
+	
+    /**
+    * Add an observer for transfer related events.
+    * Currently CCE will set only one observer.
+    * @since S60 v3.2
+    * @param aObserver Observer to add.
+    * @return none
+    * @leave system error if observer adding fails
+    */
+   void AddObserverL( const MCCPTransferObserver& aObserver );
+
+    /**
+    * Remove an observer.
+    * @since S60 v3.2
+    * @param aObserver Observer to remove.
+    * @return KErrNone if removed succesfully. 
+    * @return KErrNotFound if observer was not found.
+    */
+   TInt RemoveObserver( const MCCPTransferObserver& aObserver );
+   
+   void TransferEventOccurred( 
+                   const MCCPTransferObserver::TCCPTransferEvent aEvent );
+    
+   void UpdateL();
+private:
+
+    /** 
+     * C++ constructor
+     * @param aObserver Reference to DTMF observer
+     * @param aDirector Reference to Director
+     */
+    CVccTransferProvider( CVccPerformer* aCall );
+
+    /** 
+     * Symbian second-phase constructor
+     * @param aProviders Reference to array of the Service Providers
+     */
+    void ConstructL( );
+
+private: // data
+
+	/**
+	* DTMF event observers.
+	* Own.
+	*/
+	RPointerArray<MCCPTransferObserver> iObservers;
+    CVccPerformer* iPerfCall;
+    MCCPTransferProvider* iCallTransferProvider;
+	};
+
+#endif // CVCCTRANSFERPROVIDER_H