diff -r cfd5c2994f10 -r 113b91e0a2ad imsrv_plat/im_cache_server_api/inc/cinstantmsgindicator.h
--- a/imsrv_plat/im_cache_server_api/inc/cinstantmsgindicator.h	Tue Aug 31 15:31:29 2010 +0300
+++ b/imsrv_plat/im_cache_server_api/inc/cinstantmsgindicator.h	Wed Sep 01 12:27:45 2010 +0100
@@ -61,8 +61,11 @@
           * @param aSeriveId, service id.
           * @param aSenderId, message sender id.
           * @param aMultipleSender, count of number of P-2_p chats.
+          * @param aCloseConversation, indicates that this even came from closing the 
+          * conversation and hence no need to paly the tone if there were already new messages.
           */
- 	   virtual void MessageInfoL(TInt aNewMessages, TInt aSeriveId,const TDesC& aSenderId,TInt aMultipleSenders) = 0;	
+ 	   virtual void MessageInfoL(TInt aNewMessages, TInt aSeriveId,const TDesC& aSenderId,
+ 	                             TInt aMultipleSenders,TBool aCloseConversation = EFalse) = 0;	
 		 
      private:
          /**