diff -r f742655b05bf -r d38647835c2e sipvoipprovider/svptransfer/inc/svptransferstatebase.h
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/sipvoipprovider/svptransfer/inc/svptransferstatebase.h	Wed Sep 01 12:29:57 2010 +0100
@@ -0,0 +1,87 @@
+/*
+* 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:  Transfer state base class for different transfer states
+*
+*/
+
+
+#ifndef SVPTRANSFERSTATEBASE_H
+#define SVPTRANSFERSTATEBASE_H
+
+#include <e32base.h>
+
+class CSVPTransferStateContext;
+
+/**
+ *  Transfer state base class
+ *
+ *  @lib svp.dll
+ *  @since S60 3.2
+ */
+class CSVPTransferStateBase : public CBase
+    {
+
+public: // Constructors and destructor
+    
+    /**
+     * Destructor.
+     */
+    virtual ~CSVPTransferStateBase();
+    
+public: // New functions
+
+    /**
+     * Applies the current state. Called after the state transition.
+     * Leaves on error.
+     * @since S60 3.2
+     * @param aContext SVP Transfer context
+     */
+    void ApplyL( CSVPTransferStateContext& aContext );
+    
+    /**
+     * Called when the state is entered, before it is applied.
+     *
+     * @since S60 3.2
+     * @param aContext SVP Transfer context
+     */
+    void Enter( CSVPTransferStateContext& aContext );
+
+
+protected: // New functions
+
+    /**
+     * Applies the current concrete state. Leaves on error.
+     * Implemented by the concrete states.
+     *
+     * @since S60 3.2
+     * @param aContext SVP Transfer context
+     */
+    virtual void DoApplyL( CSVPTransferStateContext& aContext ) = 0;
+
+    /**
+     * Called when the state is entered. Implemented by the concrete states.
+     *
+     * @since S60 3.2
+     * @param aContext SVP Transfer context
+     */  
+    virtual void DoEnter( CSVPTransferStateContext& aContext ) = 0;
+
+    /**
+    * C++ default constructor.
+    */
+    CSVPTransferStateBase();
+ 
+    };
+
+#endif // SVPTRANSFERSTATEBASE_H