--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/realtimenetprots/sipfw/SIP/ConnectionMgr/inc/MSigComp.h	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,90 @@
+/*
+* Copyright (c) 2005-2009 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:
+* Name          : MSigComp.h
+* Part of       : ConnectionMgr
+* Version       : SIP/4.0 
+*
+*/
+
+
+
+
+/**
+ @internalComponent
+*/
+#ifndef MSIGCOMP_H
+#define MSIGCOMP_H
+
+#include <e32std.h>
+
+
+class MSigComp
+	{
+public:
+
+    /**
+     * Destructor.
+	 */
+	virtual ~MSigComp () {}
+
+    /**
+     * Checks if signalling compression is installed.
+     *
+     * @returns ETrue if installed, EFalse otherwise.
+	 */
+    virtual TBool IsSupported () const = 0;
+
+    /**
+     * After calling this function ConnectionMgr always uses
+     * signalling compression for requests sent with 
+     * the returned compartment ID.
+     * Multiple users can share a compartment to a 
+     * next hop identified by TInetAddr.
+     * The compartment ID and the TInetAddr are bound together 
+     * when the first request towards the TInetAddr is sent.
+     * Multiple comparment IDs can point to the same TInetAddr.
+     *
+     * @param aIapId the IAP used for the compartment
+     *
+     * @returns a generated ID for the compartment
+	 */
+    virtual TUint32 CreateCompartmentL(TUint32 aIapId) = 0;
+
+    /**
+     * Removes compartment identified by the compartment ID
+     *
+     * @param aCompartmentId the compartment ID
+	 */
+    virtual void RemoveCompartment(TUint32 aCompartmentId) = 0;
+
+	/**
+     * The function returns count of compartments
+     *
+     * @returns	count of compartments
+     */
+	virtual TInt CompartmentCount() = 0;
+
+	/**
+     * If the compartment has been previously used for decompressing,
+     * resets the compartment. If not, deletes the compartment. 
+     *
+     * @param aCompartmentId the compartment ID
+     */
+	virtual void SendFailedL(TUint32 aCompartmentId) = 0;
+	};
+
+#endif // MSIGCOMP_H
+
+// End of File