Hi, I have one doubt in this. If ACK is not properly sent by the UAC, how will the call be terminated? Will the UAC send a CANCEL or will the other end send a BYE to terminate the call?
Regards, Sunil -----Original Message----- From: [email protected] [mailto:[email protected]] On Behalf Of Iñaki Baz Castillo Sent: Tuesday, January 12, 2010 2:27 PM To: [email protected] Subject: Re: [Sip-implementors] INVITE Transaction 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 Please do not print this email unless it is absolutely necessary. The information contained in this electronic message and any attachments to this message are intended for the exclusive use of the addressee(s) and may contain proprietary, confidential or privileged information. If you are not the intended recipient, you should not disseminate, distribute or copy this e-mail. Please notify the sender immediately and destroy all copies of this message and any attachments. WARNING: Computer viruses can be transmitted via email. The recipient should check this email and any attachments for the presence of viruses. The company accepts no liability for any damage caused by any virus transmitted by this email. www.wipro.com _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
