Proxies use a Timer C (defined in rfc3261). Endpoints can use something similar to Timer C; however SIP does not require the client to use Timer C.
> -----Original Message----- > From: [email protected] [mailto:sip- > [email protected]] On Behalf Of Ashish Vyas > Sent: Wednesday, May 25, 2011 4:39 AM > To: [email protected] > Subject: Re: [Sip-implementors] Response to late 200 OK to INVITE > > If timer B is going to run till 1XX response only, who will make sure > that we > don't remain in "Proceeding" state for ever? > > This was the reason I did not mention timer B during the initial post, > as it is > not exactly timer B. But there has to be some timer to make sure that > we don't > remain in Proceeding state for ever and also don't respond with ACK to > 200 OK > after some point. > > Are we supposed to have some timer here? What will be the duration? > > Regards > Ashish Vyas _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
