Re: Is SDP in an unreliable response "the answer" ???

Paul Kyzivat wrote:
> Here is my attempt at summarizing the discussion conclusions:
> 
> Normative things (stated or implied in existing RFCs):
> 
> - If the UAC sent an offer in the INVITE, then after it receives SDP
> (the answer) in a reliable response to the INVITE, any SDP in subsequent
> responses to the INVITE MUST be ignored.
> 
> - Further, if SDP is received in an unreliable response to the invite
> prior to receiving SDP in a reliable response, then it MUST be treated
> as the answer for purposes of media processing, but not for purposes of
> determining when another offer may be sent or received.
> 
> - if the UAS receives an offer in the INVITE, it MUST NOT include SDP in
> any response it sends until it has determined the intended answer SDP to
> the offer.
> 
> - once the intended answer SDP is determined, it MUST be sent in a
> reliable response to the INVITE. It MAY be sent in one or more
> *preceding* unreliable provisional responses.
> 
> Non-normative, best practice suggestions:
> 
> - if the UAS receives an offer in the invite, once it has sent the
> answer in a reliable response, it should not send any SDP in subsequent
> responses to the INVITE.

I think you've got it, yes.

-- 
Kevin P. Fleming
Digium, Inc. | Director of Software Technologies
445 Jan Davis Drive NW - Huntsville, AL 35806 - USA
skype: kpfleming | jabber: [email protected]
Check us out at www.digium.com & www.asterisk.org
_______________________________________________
Sipping mailing list  https://www.ietf.org/mailman/listinfo/sipping
This list is for NEW development of the application of SIP
Use [email protected] for questions on current sip
Use [email protected] for new developments of core SIP