Barry, Might it not be simpler to follow Richard's first suggestion in that thread, and simply catch the 488 response in a failure_route and re-issue a non-SRTP offer on another branch?

-- Alex > On Jul 18, 2023, at 11:05 AM, Barry Flanagan <barry(a)flantel.com> wrote: > > Hi, > > I have implemented a WebRTC proxy using Kamailio and rtpengine, in front > of Asterisk servers. I have an issue where I do not know in advance > whether the Asterisk client is set to use RTP or SRTP. > > My implementation expects the web side to be SRTP and the Asterisk side > plain RTP. However, if the asterisk side requires SRTP I receive a 488 > Not Acceptable here. The same is true when an SRTP client from the > Asterisk side dials out to the webrtc client, I need to catch whether > the request is SRTP or RTP and generate rtpengine offer accordingly. > > This was discussed in github, with a description of a solution here: > https://github.com/sipwise/rtpengine/issues/435#issuecomment-391937398 - > however I am unsure how to implement this. > > Does anyone have an example of how I can change the rtpengine SDP in > such a case? > > Thanks > -- > -Barry > __________________________________________________________ > Kamailio - Users Mailing List - Non Commercial Discussions > To unsubscribe send an email to sr-users-leave(a)lists.kamailio.org > Important: keep the mailing list in the recipients, do not reply only to the sender! > Edit mailing list options or unsubscribe: