[asterisk-bugs] [JIRA] (ASTERISK-28811) Crash occurs when fax session switches from T.38 to audio

[Alexei Gradinari (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-28811?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Alexei Gradinari updated ASTERISK-28811:
----------------------------------------

    Attachment: sip-trace-488.txt
                sip-flow-488.txt

With patch in case "2. 488 Not Acceptable Here" there isn't crash,
but the asterisk did not send re-INVITE with sdp on 488.


> Crash occurs when fax session switches from T.38 to audio
> ---------------------------------------------------------
>
>                 Key: ASTERISK-28811
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28811
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: pjproject/pjsip
>    Affects Versions: 16.9.0
>         Environment: CentOS Linux release 7.7.1908 (Core) 3.10.0-1062.4.3.el7.x86_64
>            Reporter: Alexey Vasilyev
>            Assignee: Alexey Vasilyev
>              Labels: fax, patch
>         Attachments: ASTERISK-28811-2.diff, cisco-pbx.txt, core.28811.tar.gz, crash1-backtrace.txt, crash1-sip-trace.txt, crash2-backtrace.txt, crash2-sip-trace.txt, pbx-fax.txt, pjsip.conf, sip-flow-488.txt, sip-trace-488.txt
>
>
> During sending fax from Cisco SPA112 device through several Asterisk servers, latest updated server is crashed (Asterisk 16.9.0). But we can't reproduce crash, as sometimes faxes send fine, from other Cisco SPA112 devices faxes just stopped sending (receiving works fine). After downgrade to 16.8.0 everything works fine again.



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