[asterisk-bugs] [JIRA] (ASTERISK-27949) res_pjsip_rfc3326: A lot of endpoints do not correctly handle two Reason headers

[Ross Beer (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-27949?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=244021#comment-244021 ] 

Ross Beer commented on ASTERISK-27949:
--------------------------------------

I've tested with only setting the "SIP" reason header and the phones work correctly with only one Reason header or no header at all. Therefore I think the best option would be to suppress the Q.850 reason all of the time.

Due to the above, I believe the option should be "suppress_q850_reasons"

> res_pjsip_rfc3326: A lot of endpoints do not correctly handle two Reason headers
> --------------------------------------------------------------------------------
>
>                 Key: ASTERISK-27949
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-27949
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_pjsip_rfc3326
>    Affects Versions: 13.21.1, 15.4.1
>         Environment: CentOS 7
>            Reporter: Ross Beer
>            Assignee: Ross Beer
>
> A lot of endpoints such as Cisco, Grandstream and Yealink have an issue with multiple 'Reason' headers.
> Removing the second Q.850 Reason header resolves the 'Answered Elsewhere' issue on all.
> It's not possible to remove the Q.850 header totally as this is used to pass hangup reasons between asterisk servers and other SIP services.
> Therefore a configurable option per endpoint would resolve this issue.



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