[asterisk-bugs] [JIRA] (ASTERISK-26490) PJSIP channel driver sometimes sends 481 Call/Transaction Does Not Exist

[Juris Breicis (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-26490?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Juris Breicis updated ASTERISK-26490:
-------------------------------------

    Description: 
In this particular setup asterisk 13.11.2 is connected to NSN MSS through SIP trunk. The calls are received and routed back through the same trunk. Randomly the PJSIP will reply 481 Call/Transaction Does Not Exist to the trunk's CANCEL request of ongoing call in Ringing state. And sometimes (for no apparent reason) it just processes CANCEL request as expected.
I have attached console dump with: 
core set debug 10 
core set verbose 10
pjsip set logging on

and corresponding sections of pjsip.conf and extensions.conf

Please note although it looks like internal network 10.X.X.X is comunicating through nat with public one 212.X.X.X - the routers are configured so, that this comunication 

  was:
In this particular setup asterisk 13.11.2 is connected to NSN MSS through SIP trunk. The calls are received and routed back through the same trunk. Randomly the PJSIP will reply 481 Call/Transaction Does Not Exist to the trunk's CANCEL request of ongoing call in Ringing state. And sometimes (for no apparent reason) it just processes CANCEL request as expected.
I have attached console dump with: 
core set debug 10 
core set verbose 10
pjsip set logging on

and corresponding sections of pjsip.conf and extensions.conf



> PJSIP channel driver sometimes sends 481 Call/Transaction Does Not Exist
> ------------------------------------------------------------------------
>
>                 Key: ASTERISK-26490
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-26490
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: pjproject/pjsip
>    Affects Versions: 13.11.2
>         Environment: Linux 4.4.19-1-pve #1 SMP x86_64 x86_64 x86_64 GNU/Linux
>            Reporter: Juris Breicis
>            Severity: Critical
>         Attachments: extensions.conf, MSS_SIP_TRACE_ISSUES.txt, pjsip.conf
>
>
> In this particular setup asterisk 13.11.2 is connected to NSN MSS through SIP trunk. The calls are received and routed back through the same trunk. Randomly the PJSIP will reply 481 Call/Transaction Does Not Exist to the trunk's CANCEL request of ongoing call in Ringing state. And sometimes (for no apparent reason) it just processes CANCEL request as expected.
> I have attached console dump with: 
> core set debug 10 
> core set verbose 10
> pjsip set logging on
> and corresponding sections of pjsip.conf and extensions.conf
> Please note although it looks like internal network 10.X.X.X is comunicating through nat with public one 212.X.X.X - the routers are configured so, that this comunication 



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