El Martes, 12 de Enero de 2010, Avinash escribió: > Hi, > > I have a doubt, can anyone please let me know what could be the > behavior. > > There is a UAC which is sending INVITE and it gets response with 200 > OK, and sends out an ACK which is erroneous(CSeq is not proper). > > In this case the 200Ok will be resent from UAS which indicated ACK is > not proper. > > But Soon after sending ACK, UAC is also sending INFO, but is it correct > to receive INFO and service it at UAS side? because from UAS side the call > is established since it has sent 200OK for INVITE, or it has to reject > in-dialog INFO as ACK received was having problem? > > RFC3261 is not indicating clearly about ACK and dialog establishment. > > Please let me know what could be the behavior?
The dialog is established when UAC and UAS have remote contact, route set and dialog tags (From tag, To tag, Call-ID), so the call can start after 200 Ok. However the call would be terminated after 32 seconds if the ACK is not properly sent by the UAC. -- Iñaki Baz Castillo <[email protected]> _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
