pravin.sw...@wipro.com wrote: > HI.. All, > > In the below scenario Is offer /Answer Still required Even if its > completed in INV & 180 ??. > > Understanding Early Dialog Establishment is it right way to send PRACK > request & response without SDP. ?? > > > UAC UAS > > INV(offer) > ----------------------------------------------> > 180(Answer) > <--------------------------------------------- > PRACK ( SDP/OFFER still required ???) > ----------------------------------------------->
I assume that INV had Supported:100rel and 180 had Required:100rel. If so, then the PRACK itself is required, but it need not have an offer. > 200 OK (SDP/Answer still required ????) > <--------------------------------------------- The 200 for the PRACK must have an answer if and only if the PRACK had an offer. Sounds like you haven't seen https://datatracker.ietf.org/drafts/draft-ietf-sipping-sip-offeranswer Paul > 200 OK(INV) > <--------------------------------------------- > ACK > -----------------------------------------------> > > Reagrds > P.S. > > 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 > Sip-implementors@lists.cs.columbia.edu > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors > _______________________________________________ Sip-implementors mailing list Sip-implementors@lists.cs.columbia.edu https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
