[asterisk-bugs] [JIRA] (ASTERISK-28738) Incorrect state machine used when MOH_PASSTHRU is used

[Asterisk Team (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-28738?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Asterisk Team updated ASTERISK-28738:
-------------------------------------

    Target Release Version/s: 18.0.0

> Incorrect state machine used when MOH_PASSTHRU is used
> ------------------------------------------------------
>
>                 Key: ASTERISK-28738
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28738
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Resources/res_pjsip_sdp_rtp
>    Affects Versions: 13.20.0
>            Reporter: Torrey Searle
>            Assignee: Torrey Searle
>      Target Release: 13.32.0, 16.9.0, 17.3.0, 18.0.0
>
>
> When MOH_PASSTRHOUGH is active in a setup
> A -> ASTERISK -> B
> When A sends on-hold, asterisk sends an on-hold with "sendonly" to B
> However if while the first hold is active and B wants to hold in the reverse direction, B sends "inactive", but asterisk incorrectly forwards this to A as "sendonly"
> This is in violation of RFC3264 section 8.4 which says as follows:
>    If the stream to be placed on hold was previously a sendrecv media
>    stream, it is placed on hold by marking it as sendonly.  If the
>    stream to be placed on hold was previously a recvonly media stream,
>    it is placed on hold by marking it inactive.
> Attached is a patch and a testsuite test that validates the on hold state machine is properly implemented



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