I think early-session in REQUIRE, doesnt mandate 100rel. But also, early-session without PRACK surely doesnt make sense, as then how will the answer to 1xx(for early session) go. UPDATE?? Rgds Retesh
-----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Chauhan Bhavik-A20762 Sent: Monday, May 30, 2005 5:01 PM To: [email protected]; [email protected] Subject: [Sip] RE: 100rel and early-session option tags (RFC 3959) Resending it. Any comments on this? Thanks, Bhavik -----Original Message----- From: Chauhan Bhavik-A20762 Sent: Tuesday, May 24, 2005 10:53 AM To: [email protected] Subject: 100rel and early-session option tags (RFC 3959) Hi, With Reference to RFC 3959 section 6, I think "early-session" option tag must be accompanied "100rel" if it is in "Require" header to indicate "Reliability of Provisional Response" support as I didn't find any relationship cited in RFCs. Does "early-session" implicitly indicate that? If not then, 1. A B ---INVITE(Require: early-session) ----> (INVITE is without 100rel option) As 100rel is not there what will be response from B? 2. A B ----INVITE(Supported: early-session) with OFFER ----> <---- 180 Reliable with early-offer & ANSWER---- (INVITE is without 100rel option ) What will be response from A as no 100rel supported? Regards, Bhavik Chauhan Motorola India Eletronics Pvt Ltd. _______________________________________________ Sip-implementors mailing list [email protected] http://lists.cs.columbia.edu/mailman/listinfo/sip-implementors
