Hi Vijaya, As per rfc 3262, If a reliable provisional response is retransmitted for 64*T1 seconds without reception of a corresponding PRACK, the UAS SHOULD reject the original request with a 5xx response.
The UPDATE transaction can be initiated after early dialog has established, as in your case, and is independent of the PRACK transaction. Thanks, Pranab On Thu, Dec 3, 2009 at 12:30 PM, vijaya yadav <[email protected]> wrote: > Hi > > > > <----- INVITE (SDP) > > ------>183(SDP) (100rel) > > PRACK not received from the UAC > > <-----UPDATE(SDP) > > ------>200OK(SDP) [Is this correct message or UAS send any 4xx message] > > ------>183 retransmitted > > ----->500 Internal server error > > > > > > What is the behaviour of UAS if not recievd the PRACK of 183 and recieve a > UPDATE message with new offer > > > > > ~Vijaya > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
