Hi all ,

I have been executing the following scenario :

     UAC                                                  UAS

                   INVITE
   ----------------------------------------->
             180(100rel and without SDP)
  <------------------------------------------
                      200 OK
  <--------------------------------------------


As per the RFC 3262 section 3  UAS Behavior :


" The UAS MAY send a final response to the initial request before
   having received PRACKs for all unacknowledged reliable provisional
   responses, unless the final response is 2xx and any of the
   unacknowledged reliable provisional responses contained a session
   description."

Does  this implies that UAS can send 200 OK  final response to initial INVITE 
before receiving the PRACK for the unacknowledged provisional response without 
SDP?

If the above scenario is possible than  when should UAS free the RPR 
transaction as the RFC 3262 states that UAS should be able to process the PRACK 
for the unacknowledged provisional response even after sending the final 
response.


Thanks and regards
Jatin Kohli


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