I have been using engage_media_proxy in my script, but it seems to cause
problems when I failover in the dynamic routing module.
This is the scenario:
1. Incoming call
2. Engage media proxy
3. Try first GW (which is down)
4. Failure route
5. Try next GW
6. Next GW sends Session progress & invite
7. Media proxy module 'fixes' my SDP contact twice
My SIP message end up with duplicated SDP contact info. For example: c=IN
IP4 33.66.22.1133.66.22.11
If the first gateway works, this does not happen. In fact it works
perfectly. But I guess engage_media_proxy or the dialog module is having
an issue with a failure scenario?
My failure route is pretty simple:
failure_route[4] {
xlog("L_INFO", "Failure Route: $rm, $fu, $ru\n");
if (use_next_gw()) {
xlog("L_INFO", "Trying next gateway" );
t_relay();
exit;
} else {
xlog( "L_INFO", "Exhausted gateway list" );
t_reply ("503", "Service not available");
exit;
}
}
Should I switch to use_media_proxy/end_media_session if I want to expect
failovers? Or could I be doing something wrong?
Thanks guys
Charles
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