[SR-Users] rtpproxy-ng and late SDP

Sebastian Damm damm at sipgate.de
Mon May 18 09:53:00 CEST 2015


Hi Alex,

On Thu, May 14, 2015 at 5:47 AM, Alex Balashov <abalashov at evaristesys.com>
wrote:

> According to the rtpengine module documentation for rtpproxy_manage(),
> that's exactly what rtpproxy_manage() does:
>
>
>
> http://kamailio.org/docs/modules/4.2.x/modules/rtpengine.html#rtpengine.f.rtpengine_manage
>
> i.e.
>
> - If INVITE with SDP, then do rtpengine_offer()
> - If INVITE with SDP, when the tm module is loaded, mark transaction with
> internal flag FL_SDP_BODY to know that the 1xx and 2xx are for
> rtpengine_answer()
> - If ACK with SDP, then do rtpengine_answer()
> - If reply with SDP to INVITE having code 1xx and 2xx, then do
> rtpengine_answer() if the request had SDP or tm is not loaded, otherwise do
> rtpengine_offer()
>


What I'm missing there is how to handle an INVITE without SDP. Does that
mean, that if we haven't called rtpproxy_manage() on the INVITE, the 1xx or
2xx reply will trigger an rtpproxy_offer instead of rtpproxy_answer?

Best Regards,
Sebastian
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