[OpenSIPS-Users] Hung dialogs

[Vlad Paiu]

Hello,

 From the output of dlg_list, I can see that the ACK was never received 
by OpenSIPS, so seems this is the source of your problem.

You could try to set the dialog timeout to a lower value after the 200 
OK is received ( couple of seconds ), and increase it after the ACK is 
received to a couple of hours.

Regards,

Vlad Paiu
OpenSIPS Developer


On 11/03/2011 10:36 PM, Ryan Revels wrote:
> 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 at 64.136.174.30 
> <mailto:sip%3A16034299966 at 64.136.174.30>
> to_uri:: sip:16038869119 at 184.106.218.8 
> <mailto:sip%3A16038869119 at 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 <http://184.106.218.8:5060>
> callee_tag:: as58f4e19a
> callee_contact:: sip:16038869119 at 71.168.70.47 
> <mailto:sip%3A16038869119 at 71.168.70.47>
> caller_cseq:: 2
> callee_route_set::
> callee_bind_addr:: udp:184.106.218.8:5060 <http://184.106.218.8:5060>
>
> Any help would be appreciated.
>
> Thanks,
> Ryan
>
>
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