Yes, I want the kamailio to play ring-back music immediately after it receive the INVITE. My plan is to append a branch to freeswitch and let freeswitch to play the music. The problem is append_branch() does not work in the following context:
if(is_method("INVITE")) {
append_branch("sip:prompt-tone@freeswitch");
xlog("append branch");
t_newtran();
$http_req(hdr) = "Content-Type: application/json";
$http_req(body) = $_s({"cmuid": "$var(cmuid)"});
http_async_query("http://127.0.0.1:8080", "HTTP_REPLY");
}
if I remove the last 4 lines everything works fine. Otherwise, no forked INVITE will be sent to freeswitch. Unfortunately, I need the http_async_query to find the proper callee. Any suggestions?
Hi,
While Brandon is right, you can do absolutely do that but w/o any SDP or progress media in there. I'd ask why you want to do that! If you want to feed some ring-back music I'd advise you to append a branch to a media-server like asterisk and then let that do it for you.
}
where IP is of asterisk and dialplan is configured to provider Progress() with media.
Again, it depends on why you want it?
Regards,
Sammy