--- a/epoc32/include/sipobserver.h	Tue Nov 24 13:55:44 2009 +0000
+++ b/epoc32/include/sipobserver.h	Tue Mar 16 16:12:26 2010 +0000
@@ -1,1 +1,72 @@
-sipobserver.h
+/*
+* 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 the License "Symbian Foundation License v1.0" to Symbian Foundation members and "Symbian Foundation End User License Agreement v1.0" to non-members
+* which accompanies this distribution, and is available
+* at the URL "http://www.symbianfoundation.org/legal/licencesv10.html".
+*
+* Initial Contributors:
+* Nokia Corporation - initial contribution.
+*
+* Contributors:
+*
+* Description:
+* Name        : sipobserver.h
+* Part of     : SIP Client
+* Interface   : SDK API, SIP Client API
+* Version     : 1.0
+*
+*/
+
+
+
+#ifndef MSIPOBSERVER_H
+#define MSIPOBSERVER_H
+
+// INCLUDES
+#include <e32std.h>
+
+// FORWARD DECLARATIONS
+class CSIPServerTransaction;
+
+// CLASS DECLARATION
+
+/**
+*  @publishedAll
+*  @released
+*
+*  An interface to be implemented by user of CSIP.
+*  Interface allows to be able to receive SIP request from the SIP connection
+*  that has not been initialized by the user.
+*
+*  @lib n/a
+*/
+class MSIPObserver
+    {    
+    public: // New functions
+        /**
+        * A SIP request has been received from the network.
+        * This function is called when the SIP request was received using such
+        * an IAP, for which the application has not created a CSIPConnection
+        * object.
+        * @pre aTransaction != 0
+        * @param aIapId The IapId from which the SIP request was received.
+        * @param aTransaction contains local address, remote address of a SIP
+        *        message, as well as optional SIP message method, headers and
+        *        body. The ownership is transferred.
+        */
+        virtual void IncomingRequest(TUint32 aIapId,
+                                     CSIPServerTransaction* aTransaction) = 0;
+
+        /**
+        * The received SIP request time-outed and it is invalid i.e. cannot be used
+        * anymore.
+        * This will be called if the user fails to create a SIP connection and
+        * does not send an appropriate SIP response.
+        * @param aTransaction The time-outed transaction.
+        */
+        virtual void TimedOut(CSIPServerTransaction& aTransaction) = 0;
+    };
+
+#endif