I've run into an issue where *very* rarely, dialogs will "hang", that is, the dialog will continue to exist even though the call never connected. In the example I managed to track down, the proxy should reject the call (because a limit of concurrent calls has been reached) and at first, it seems like it's going to... but then it sends a 100 Trying and continues to route the call to the destination. From there, everything spirals and the dialog doesn't die until it hits the global timeout.
The relevant portion of my script looks like:
# Check gateway calls total
if ($avp(custgwtotal_limit) != "0" && $avp(custgwtotal_limit) != NULL &&
$avp(custgwtotal_limit) != "")
{
get_profile_size("custgwtotal","$rd","$avp(custgwtotal_count)");
if (!$avp(custgwtotal_count) < $avp(custgwtotal_limit))
{
sl_send_reply("486","Endpoint Session Limit");
exit;
}
}
set_dlg_profile("custgwtotal","$rd"); #count total calls to customer's IP
I've attached a pcap example of what the signaling looks like when the
dialog hangs. For this example, the output in dlg_list looks like:
dialog:: hash=629:349156783
state:: 3
user_flags:: 0
timestart:: 1320336333
timeout:: 1320357957
callid:: did2.139.1120741
from_uri:: sip:16034299966@64.136.174.30
to_uri:: sip:16038869119@184.106.218.8
caller_tag:: 1ae26ee84c61df6b84baef371d2bf5e4
caller_contact:: sip:184.106.219.203:5060;transport=udp
callee_cseq:: 0
caller_route_set::
caller_bind_addr:: udp:184.106.218.8:5060
callee_tag:: as58f4e19a
callee_contact:: sip:16038869119@71.168.70.47
caller_cseq:: 2
callee_route_set::
callee_bind_addr:: udp:184.106.218.8:5060
Any help would be appreciated.
Thanks,
Ryan
hung_call.pcap
Description: Binary data
_______________________________________________ Users mailing list Users@lists.opensips.org http://lists.opensips.org/cgi-bin/mailman/listinfo/users
