The PRACK w/ offer is optional in your case Regards, -Rockson
-----Original Message----- From: sip-implementors-boun...@lists.cs.columbia.edu [mailto:sip-implementors-boun...@lists.cs.columbia.edu] On Behalf Of pravin.sw...@wipro.com Sent: Friday, December 19, 2008 10:35 PM To: sip-implementors@lists.cs.columbia.edu Subject: [Sip-implementors] PRACK -200 OK / Offer Answer Model 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 ???) -----------------------------------------------> 200 OK (SDP/Answer still required ????) <--------------------------------------------- 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
