Sounds like ATT and Verizon’s. “Cleared while testing”. Response….

> On Apr 19, 2021, at 7:24 AM, Nick Barnett <nick@barnett.email> wrote:
> 
> The PSTN issue was resolved by the time I could get more traces. i still have 
> no idea what timer was popping, TAC couldn't figure it out either... so I 
> guess hope you don't ever have a mystery 7 second timer that cuts off your 
> calls.
> 
> On Fri, Apr 16, 2021, at 11:25 AM, Nick Barnett wrote:
>> Unfortunately, I only had ccsip and ccapi inout debugs running... I'll add 
>> those 2 other sip debugs the next time. This is what I had handy from last 
>> night. I'm sure new traces would be very helpful, but can't get to it right 
>> now and wanted to at least respond.
>> 
>> Here is a sanitized copy of the cancel.  The time between the trying and the 
>> cancel is always between 6.8 and 6.9 seconds.  
>> 
>> CANCEL sip:17633334...@voip.centurylink.com 
>> <mailto:17633334...@voip.centurylink.com>:5100 SIP/2.0
>> Via: SIP/2.0/UDP voip.centurylink.com:5060;branch=z9hG4bK2804DC216B
>> From: sip:1652223333@10.10.10.10;tag=7FF3BC40-14BB
>> To: <sip:17635670...@voip.centurylink.com 
>> <mailto:17635670...@voip.centurylink.com>>
>> Date: Thu, 15 Apr 2021 18:39:42 GMT
>> Call-ID: c6ab9407-9d5011eb-88bf8f36-hi-...@voip.centurylink.com 
>> <mailto:c6ab9407-9d5011eb-88bf8f36-4c717...@voip.centurylink.com>
>> CSeq: 102 CANCEL
>> Max-Forwards: 70
>> Timestamp: 1618511989
>> Reason: Q.850;cause=0
>> Content-Length: 0
>> 
>> That pesky 0 for the cause code is making life difficult.
>> 
>> On Fri, Apr 16, 2021, at 10:29 AM, Sreekanth Narayanan (sreenara) wrote:
>>> Nick,
>>> 
>>> What's the disconnect cause from the CUBE? 102?
>>> 
>>> Do you have logs for this call? Would be clear which timers are expiring, 
>>> causing the problem.
>>> debug ccsip message
>>> debug ccsip error
>>> debug ccsip info
>>> 
>>> -sreekanth
>>> 
>>> 
>>> From: cisco-voip <cisco-voip-boun...@puck.nether.net> on behalf of Nick 
>>> Barnett <nick@barnett.email>
>>> Sent: Friday, April 16, 2021 6:53 PM
>>> To: cisco-voip <cisco-voip@puck.nether.net>
>>> Subject: [cisco-voip] Outbound SIP connection failing in CUBE due to some 
>>> timer... maybe.
>>>  
>>> Yes, very vague subject. Sorry about that. Some calls to certain wireless 
>>> carriers on our ITSP connections have started failing. 
>>> 
>>> Win10 Jabber client (off of 12.5.su3) -> CUBE -> ITSP
>>> 
>>> The call goes out Lumen, the 401 auth and challenge response are fine, the 
>>> INVITE is then sent with SDP. We get a TRYING response which we immediately 
>>> ACK. Up until this point, the entire call flow is NORMAL. 
>>> 
>>> If we don't receive a 18X response within  7 Seconds, the, the CUBE sends a 
>>> cancel. Yes, the CUBE.
>>> 
>>> It appears that the far end is taking too long to send the 18X message. we 
>>> involved our carrier and they can see the 18X come back a split second 
>>> later (sometimes), but our side has already closed the connection.
>>> 
>>> I looked at all of the sip-ua timers and retry settings. nothing adds up to 
>>> 7 seconds. Most timers are set to 500 msec. I'm not sure where to look? 
>>> It's not on the sip profile. i tried bumping up the connect, update, info 
>>> and trying timers (one at a time), but it didn't make any difference. Maybe 
>>> I was supposed to do something to make sip-ua changes "kick in" like bounce 
>>> the sip service which I didn't do... not sure on that part.
>>> 
>>> Please tell me there is something simple I'm missing. Pointers?
>>> 
>>> Thanks,
>>> Nick
>>> 
>>> 
>>> p.s. : some possibly relevant config  and the timers and retries from my 
>>> sip-ua
>>> 
>>> retry invite 2
>>> retry response 6
>>> retry bye 10
>>> retry cancel 10
>>> retry prack 10
>>> retry update 6
>>> retry rel1xx 6
>>> retry notify 10
>>> retry refer 10
>>> retry info 6
>>> retry register 6
>>> retry subscribe 6
>>> retry keepalive 6
>>> retry options 6
>>> timers trying 500
>>> timers expires 180000
>>> timers connect 500
>>> timers connection aging 5
>>> timers disconnect 500
>>> timers prack 500
>>> timers update 500
>>> timers rel1xx 500
>>> timers notify 750
>>> timers refer 500
>>> timers hold 2880
>>> timers info 500
>>> timers register 500
>>> timers buffer-invite 0
>>> timers keepalive down 30
>>> timers keepalive active 120
>>> timers dns registrar-cache 3600
>>> timers options 500
>> 
>> 
>> Thanks,
>> Nick
>> 
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>> 
> 
> 
> Thanks,
> Nick
> 
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