481 Call/Transaction does not exist

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481 Call/Transaction does not exist

Postby vkad » Fri Jun 01, 2018 2:27 pm

You're software is sending the wrong ID when trying to BYE to call. It seems to be sporadic. This is the response in the SIP trace "481 Call/Transaction does not exist"

Our carrier is saying this for calls that are not being terminated for many hours. What could be the reason?
Vicibox 8.0.1 (Asterisk 13.21.0-vici) + Remote WebRTC Agents
Version: 2.14b0.5 | SVN: 2990 | DB Version: 1548
1 x DB + Web + Dialer - E3 1270 v6 + 16gb ddr4 + 256gb SSD
2 x Additional Dialer - E3 1270 v6 + 8gb ddr4 + 256gb SSD
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Re: 481 Call/Transaction does not exist

Postby vkad » Mon Jun 04, 2018 10:37 pm

Does anyone have any clue on why vicidial is sending 481 signal to our carrier?
Vicibox 8.0.1 (Asterisk 13.21.0-vici) + Remote WebRTC Agents
Version: 2.14b0.5 | SVN: 2990 | DB Version: 1548
1 x DB + Web + Dialer - E3 1270 v6 + 16gb ddr4 + 256gb SSD
2 x Additional Dialer - E3 1270 v6 + 8gb ddr4 + 256gb SSD
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Re: 481 Call/Transaction does not exist

Postby vkad » Tue Jun 12, 2018 4:29 am

Anyone able to help on why vicidial would send 481 on ending the call?
Vicibox 8.0.1 (Asterisk 13.21.0-vici) + Remote WebRTC Agents
Version: 2.14b0.5 | SVN: 2990 | DB Version: 1548
1 x DB + Web + Dialer - E3 1270 v6 + 16gb ddr4 + 256gb SSD
2 x Additional Dialer - E3 1270 v6 + 8gb ddr4 + 256gb SSD
vkad
 
Posts: 208
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Re: 481 Call/Transaction does not exist

Postby mflorell » Tue Jun 12, 2018 7:01 am

Can't say I've heard of that issue, although I'm not really the SIP expert at the office, so I don't deal with carriers on a daily basis.
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Re: 481 Call/Transaction does not exist

Postby vkad » Wed Jun 13, 2018 12:19 pm

Anyone else on why Vicidial would send 481 signal on bye
Vicibox 8.0.1 (Asterisk 13.21.0-vici) + Remote WebRTC Agents
Version: 2.14b0.5 | SVN: 2990 | DB Version: 1548
1 x DB + Web + Dialer - E3 1270 v6 + 16gb ddr4 + 256gb SSD
2 x Additional Dialer - E3 1270 v6 + 8gb ddr4 + 256gb SSD
vkad
 
Posts: 208
Joined: Thu Nov 09, 2017 3:46 am

Re: 481 Call/Transaction does not exist

Postby teleinx » Sat Jun 16, 2018 9:11 pm

It is probably an issue when your vici server already ended the call first or your vici thinks it ended the call by sending the BYE to the carrier. However, the call is still active on the carrier side. Let's just say your BYE got lost somewhere internet/network.
After some hours the call is ended by the carrier because they have a maximum allowed call length. So now they send your vici a BYE from the carrier. But since your vici no longer has the call active it sends 481.

This is called runaway calls and it happens from time to time. By the time to time, I mean few times out of 5 or so million calls.

You need to have a capture/sip log of the call to see where your vici sent the BYE. If you sent it properly to the carrier you should have received a response from the carrier in the same log.
Typically those runaway calls should be credited back to the customer by the carrier because it's obvious that those are not real calls and there was no one connected on the callee or caller side.
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