[SR-Users] R: parallel media forking during ringing phase

[Tomas Zanet]

Hello Daniel, I meant the caller device.
As soon as it receives all 180 +SDPs, can send the media to PBX system, in particular mediaproxy, which forwards it to all destinations.

Thanks
T.



Tomas Zanet
Software Design Department
tzanet at came.com
CAME S.p.A.

-----Messaggio originale-----
Da: sr-users [mailto:sr-users-bounces at lists.sip-router.org] Per conto di Daniel-Constantin Mierla
Inviato: giovedì 26 gennaio 2017 17:29
A: Kamailio (SER) - Users Mailing List <sr-users at lists.sip-router.org>
Oggetto: Re: [SR-Users] parallel media forking during ringing phase

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
> tzanet at came.com
> CAME S.p.A.
>
> _______________________________________________
> SIP Express Router (SER) and Kamailio (OpenSER) - sr-users mailing
> list sr-users at 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 at lists.sip-router.org
http://lists.sip-router.org/cgi-bin/mailman/listinfo/sr-users