[asterisk-bugs] [JIRA] (ASTERISK-28522) chan_pjsip does not support fallback from t.38 to fax over alaw/ulaw

[Asterisk Team (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-28522?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=248058#comment-248058 ] 

Asterisk Team commented on ASTERISK-28522:
------------------------------------------

Suspended due to lack of activity. This issue will be automatically re-opened if the reporter posts a comment. If you are not the reporter and would like this re-opened please create a new issue instead. If the new issue is related to this one a link will be created during the triage process. Further information on issue tracker usage can be found in the Asterisk Issue Guidlines [1].

[1] https://wiki.asterisk.org/wiki/display/AST/Asterisk+Issue+Guidelines

> chan_pjsip does not support fallback from t.38 to fax over alaw/ulaw
> --------------------------------------------------------------------
>
>                 Key: ASTERISK-28522
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28522
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_pjsip_t38
>    Affects Versions: 16.5.0
>         Environment:  Debian 10.0, 4.9.0-3-amd64 2GB RAM, 4 VCPUs, Xen 4.4 Dell PowerEdge R430 
>            Reporter: John Cahill
>            Assignee: John Cahill
>              Labels: fax, pjsip
>         Attachments: failed-fallback.pcap
>
>
> chan_pjsip does not support fallback from t.38 to fax over alaw/ulaw. Asterisk should re-invite to alaw/ulaw on receiving a t.38 to allow fax to proceed. This works with chan_sip.



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