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

[Asterisk Team (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-26490?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=232791#comment-232791 ] 

Asterisk Team commented on ASTERISK-26490:
------------------------------------------

Thanks for creating a report! The issue has entered the triage process. That means the issue will wait in this status until a Bug Marshal has an opportunity to review the issue. Once the issue has been reviewed you will receive comments regarding the next steps towards resolution.

A good first step is for you to review the [Asterisk Issue Guidelines|https://wiki.asterisk.org/wiki/display/AST/Asterisk+Issue+Guidelines] if you haven't already. The guidelines detail what is expected from an Asterisk issue report.

Then, if you are submitting a patch, please review the [Patch Contribution Process|https://wiki.asterisk.org/wiki/display/AST/Patch+Contribution+Process].

> 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: MSS_SIP_TRACE_ISSUES.txt
>
>
> 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



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