Hello Calvin, Just making a quick search I got the following:
Hi This 200 OK without SDP *is acceptable* as the answer SDP has already been received in a reliable non-failure response. Refer RFC 3262 (Sec 5 The Offer/Answer Model and PRACK): If the INVITE contained an offer, the UAS MAY generate an answer in a reliable provisional response (assuming these are supported by the UAC). Also I would add that the carriers having this behavior are many and big ones, the UAC not supporting this response are mostly asterisk ( maybe something may need to be fine tuned). Thank you for your comments! On Wed, Sep 15, 2021 at 1:20 PM Calvin Ellison <[email protected]> wrote: > This doesn't answer your question: I'm curious if that is a broken > behavior from the party sending the 200 without SDP. It is my understanding > that all subsequent 18x and the 200 must use the same SDP if no UPDATE has > taken place in the meantime. Please, correct me if that is a > misunderstanding. > > > > Calvin Ellison > > Systems Architect > > [email protected] > > +1 (213) 285-0555 > > <http://voxox.com> > > <https://www.facebook.com/VOXOX/> > <https://www.instagram.com/voxoxofficial/> > <https://www.linkedin.com/company/3573541/admin/> > <https://twitter.com/Voxox> > > The information contained herein is confidential and privileged > information or work product intended only for the individual or entity to > whom it is addressed. Any unauthorized use, distribution, or copying of > this communication is strictly prohibited. If you have received this > communication in error, please notify me immediately. > > > On Wed, Sep 15, 2021 at 10:02 AM Mario San Vicente <[email protected]> > wrote: > >> Hello Everyone, >> >> has anyone face the following issue: customer not accepting 200ok with >> no SDP as valid. Previously an 18[03] with SDP was sent, but the final >> answer is 200 ok with no SDP from the termination leg. So i was wondering >> if there is a way to store the SDP and the append it to answering 200ok. >> >> Client --> Opensips as Proxy + rtpproxy --> Termination Leg >> >> >> Thank you in advance. >> Mario SV >> _______________________________________________ >> Users mailing list >> [email protected] >> http://lists.opensips.org/cgi-bin/mailman/listinfo/users >> > _______________________________________________ > Users mailing list > [email protected] > http://lists.opensips.org/cgi-bin/mailman/listinfo/users > -- Mario San Vicente Cheers!
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