--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/realtimenetprots/sipfw/SIP/RequestHandler/inc/SipRequestHandlerObserver.h	Tue Feb 02 01:03:15 2010 +0200
@@ -0,0 +1,73 @@
+/*
+* 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          : SipRequestHandlerObserver.h
+* Part of       : SIP Request Handler
+* Version       : SIP/4.0 
+*
+*/
+
+
+
+
+/**
+ @internalComponent
+*/
+
+#ifndef MSIPREQUESTHANDLEROBSERVER_H
+#define MSIPREQUESTHANDLEROBSERVER_H
+
+#include "SipRequestHandlerBase.h"
+class CSIPResponse;
+
+
+class MSIPRequestHandlerObserver
+	{
+	public:
+
+		/**
+		* Destructor.
+    	*/
+    	virtual ~MSIPRequestHandlerObserver () { }
+    
+		/**
+		* A client UID was resolved for the SIP request
+		* @param aRequestId the request ID
+		* @param aUid a client UID to which the SIP request must be routed
+    	*/
+		virtual void ClientFoundL(TUint32 aRequestId, TUid aUid) = 0;
+
+		/**
+		* A client UID was not found.
+        * The implementation of this callback should generate 
+        * a SIP error response with the provided elements and 
+        * send it to network.
+		* @param aRequestId a request ID
+		* @param aSIPResponse a SIP error response. 
+		*        The ownership is transferred.
+		*/
+		virtual void ClientNotFoundL(TUint32 aRequestId,
+								     CSIPResponse* aSIPResponse) = 0;
+
+		/**
+		* Error occurred during resolution of the client's channel UID.
+        * This callback will also be called if one of the callbacks 
+        * ClientFoundL or ClientNotFoundL leaves using the leave code.
+        * @param aRequestId a request ID
+		* @param aError error code. 
+		*/
+		virtual void ErrorOccurred(TUint32 aRequestId, TInt aError) =0;
+	};
+
+#endif // MSIPREQUESTHANDLEROBSERVER_H