Re: Kamailio SIPREC

with very bleeding edge code (you need to build master yourself, not in any
release)

The rtpengine methods "subscribe request" and "subscribe answer" have been
exposed in kamailio.

Look at the code segments in  for subscribe_request and unsubscribe_request
https://kamailio.org/docs/modules/devel/modules/rtpengine.html#rtpengine.f.rtpengine_subscribe_request

basic idea:
after the call is established
use the use rtpengine_subscribe_request  get the SDP needed to send to the
siprec server

to get the sdp you need to send to the sip rec server,  the last parameter
of this you specify an xavp where you determine which stream labels are
associated with which endpoint.  This can be used to build the xml metadata
for the siprec server.

send the request using t_uac_send

use the local event handler on the outbound invite to save the original
dialog information into the new transaction, and arm a response handler to
get the response from the sip rec server

on the local ack, save set the dialog to be for the orignal call so you can
save all the routset information (route, contact, rui, csec) as variables
in the original call dialog.  This can be used so you can correctly build
an in-dialog bye to the sip-rec server at the end of the call.

I hope this helps!

Regards,
Torrey



On Thu, 19 Jun 2025 at 05:02, Guilherme via sr-users <
[email protected]> wrote:

> has anyone made a successful implementation of SIPREC in kamailio +
> rtpengine?
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