[asterisk-bugs] [JIRA] (ASTERISK-20780) Asterisk responds to SIP CANCEL with 481 Call/Transaction Does Not Exist

[Rusty Newton (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-20780?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rusty Newton closed ASTERISK-20780.
-----------------------------------

    Resolution: Not A Bug
    
> Asterisk responds to SIP CANCEL with 481 Call/Transaction Does Not Exist
> ------------------------------------------------------------------------
>
>                 Key: ASTERISK-20780
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20780
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General
>    Affects Versions: 1.8.15.0
>            Reporter: mitja
>            Assignee: Rusty Newton
>         Attachments: extensions.conf, scenario1.pcapng, Scenario1.txt, Scenario2.txt, senario1
>
>
> Hi. 
> First scenario:
> I was testing sip trunk on asterisk 1.8, when incoming call is initiated and outside user then hangup without answering, phone will not stop ringing. The provider send me a Cancel request (Request-Line: CANCEL sip:77XXXXXX at 192.168.0.11:5060 SIP/2.0) but then asterisk give me " Status-Line: SIP/2.0 481 Call/Transaction Does Not Exist" error. In these case we have to restart asterisk to free a channel. In earlier versions of asterisk  (1.4,1.6) with same settins these problem never occurred, but only in asterisk 1.8.
> Second scenario:
> When incoming call is initiated and enduser answers the call, than all other calls hangup normaly, until asterisk is reloaded or sip trunk is reregistered.
> I searched the internet for a few days now but I did not found nothing, I did try some patches for reinvite issues but nothing worked.
> Thanks for your answer
> bye, Mitja

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