Hi Saul,
UA must repeat the same SDP in 200 OK response if PRACK is not enabled for provisional responses. You can also find the reference for above at the following place in RFC3261: Section : 13.2.1 Creating the Initial INVITE "If the initial offer is in an INVITE, the answer MUST be in a reliable non-failure message from UAS back to UAC which is correlated to that INVITE. For this specification, that is only the final 2xx response to that INVITE. That same exact answer MAY also be placed in any provisional responses sent prior to the answer. The UAC MUST treat the first session description it receives as the answer, and MUST ignore any session descriptions in subsequent responses to the initial INVITE." Thanks, Ashok On Thu, Feb 11, 2010 at 7:58 PM, Saúl Ibarra <[email protected]> wrote: > Hi all, > > Today I noticed some behavior in a UA that looked weird to me and as I > couldn't find an explanation on the RFC, hope someone can help me :) > > This UA *only* sends the SDP in the 180 provisional response, the 200 > OK doesn't contain an SDP, and no PRACK is being used. So my question > is if this valid according to the RFC?, also if you could point me to > the place in which is explained I'd really appreciate it. > > Kind regards, > > -- > /Saúl > http://saghul.net | http://sipdoc.net > > _______________________________________________ > Sip-implementors mailing list > [email protected] > https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors _______________________________________________ Sip-implementors mailing list [email protected] https://lists.cs.columbia.edu/cucslists/listinfo/sip-implementors
