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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--
Alex Balashov | Principal | Evariste Systems LLC
Tel: +1-706-510-6800 / +1-800-250-5920 (toll-free)
Web: http://www.evaristesys.com/, http://www.csrpswitch.com/
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