[SIPForum-discussion] [Sip-implementors] Offer/Answer question

[Manpreet Singh]

Thanks Brett. I think section 5.1 of 3311 made is clear anyways. 

-----Original Message-----
From: Brett Tate [mailto:brett at broadsoft.com] 
Sent: Sunday, April 13, 2008 4:12 PM
To: Manpreet Singh
Cc: discussion at sipforum.org; sip-implementors at lists.cs.columbia.edu
Subject: RE: [Sip-implementors] Offer/Answer question

No.  

Incase you have not seen it, the following draft is useful in clarifying
offer/answer from rfc3261, rfc3262, rfc3264, and rfc3311:
http://tools.ietf.org/html/draft-ietf-sipping-sip-offeranswer-07


> -----Original Message-----
> From: sip-implementors-bounces at lists.cs.columbia.edu
> [mailto:sip-implementors-bounces at lists.cs.columbia.edu] On Behalf Of 
> Manpreet Singh
> Sent: Sunday, April 13, 2008 12:29 AM
> To: Paul Kyzivat
> Cc: Bob Penfield; discussion at sipforum.org; 
> sip-implementors at lists.cs.columbia.edu
> Subject: Re: [Sip-implementors] Offer/Answer question
> 
> Is this flow legal from offer answer perspective? ( just want to make 
> sure if UPDATE can carry an answer to the invite transaction )
> 
> --------->Invite with Offer
> <---------180 Ringing ( no SDP )
> <----------UPDATE with answer?
> ----------->200OK to update
> <-----------200Ok for Invite ( another possible offer ? )
> ------------>ACK ( answer to offer in 200OK )
> 
> Thanks