Hi David,
As Alex said, K is a proxy. If you strictly want to use something like K, then I would suggest yo have a look at the rtp_media_server module:
https://www.kamailio.org/docs/modules/devel/modules/rtp_media_server.html
Only available in master branch (5.3), but worth giving a try if you ask me... It might simplify and achieve what you need.
Joel.
On Mon, Apr 15, 2019 at 12:50 PM Alex Balashov abalashov@evaristesys.com wrote:
Hi David,
Kamailio is a proxy, so it cannot endogenously originate either requests or most replies. A 200 OK to an INVITE transaction can only come from a user agent (endpoint), and Kamailio's sole job is to forward it. So, the 200 OK is going to come from the auto-answering callee.
To engage RTPEngine in both directions, you need to intercept the 200 OK that is generated from the callee and call rtpengine_answer() / rtpengine_manage() on it:
route { ...
if(is_method("INVITE")) { ...
rtpengine_offer("..."); t_on_reply("REPLY"); if(!t_relay()) sl_reply_error(); exit;}
... }
onreply_route[REPLY] { if(is_method("INVITE") && sdp_content()) rtpengine_answer("..."); }
-- Alex
On Mon, Apr 15, 2019 at 07:41:22PM +0000, David Dean wrote:
Hi all, I'm building an automated load testing system for an rtp media server
with TURN that uses Kamailio for SIP.
When a client sends an INVITE to Kamailio, I need Kamailio to respond
with "200 OK" and the SDP generated by rtpengine.
I've enabled auto-answer in the client, so as soon as it receives the
response from Kamailio it will start sending RTP packets.
Right now I'm using send_reply("200", "OK"); which is sending the right
200 response back to the client, but it doesn't include any body.
How can I get Kamailio to send a "200 OK" and add the rtpengine_answer
into the body?
Appreciate any help, I've been struggling with this for three days. Cheers.
rtpengine_offer("SIP-source-address ICE=force-relay
RTP");send_reply("200", "OK");
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