Hello, which SIP UA is supposed to send the early media? The caller device or the PBX system?
Cheers, Daniel On 26/01/2017 08:48, Tomas Zanet wrote: > Hi all, I'm writing to the community because I need a hint from Kamailio and > voip gurus: the goal is adding parallel forking call with early-media to our > PABX where there's a Kamailio instance running. > I mean media streams should be sent to all call destinations before answering > the call order, for instance, to see the incoming video. > > As far as I know, from signaling side should not be a problem because, using > Kamailio, there’s append_branch function which forks many branches to all > users. > > The problem is related to media streams because there’s no way to fork media > to all users after 180 + SDP or 183, right? > Obviously all users must negotiate the same media because media transcoding > is basically impossible, especially for video streams. > > I think there are two ways to do that: > 1) using Kamailio and Asterisk. Asterisk has Queue function with ringall > strategy, but I’m not sure if Asterisk supports multi domain scenarios. > Have ever used Asterisk with Kamailio in multi domain scenarios? > > 2) enhancing rttpproxy-ng. I don't really know the effort to achieve that. > > In your opinion, what’s the easiest way to achieve that? > > Thanks, > Best Regards. > > > > Tomas Zanet > Software Design Department > tza...@came.com > CAME S.p.A. > > _______________________________________________ > SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list > sr-users@lists.sip-router.org > http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users -- Daniel-Constantin Mierla www.twitter.com/miconda -- www.linkedin.com/in/miconda Kamailio Advanced Training - Mar 6-8 (Europe) and Mar 20-22 (USA) - www.asipto.com Kamailio World Conference - May 8-10, 2017 - www.kamailioworld.com _______________________________________________ SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing list sr-users@lists.sip-router.org http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users
