[asterisk-bugs] [JIRA] (ASTERISK-26565) chan_unistim on 11, 13, 14 placing call on hold temporarily locks up set

[Asterisk Team (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-26565?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=233468#comment-233468 ] 

Asterisk Team commented on ASTERISK-26565:
------------------------------------------

Thanks for creating a report! The issue has entered the triage process. That means the issue will wait in this status until a Bug Marshal has an opportunity to review the issue. Once the issue has been reviewed you will receive comments regarding the next steps towards resolution.

A good first step is for you to review the [Asterisk Issue Guidelines|https://wiki.asterisk.org/wiki/display/AST/Asterisk+Issue+Guidelines] if you haven't already. The guidelines detail what is expected from an Asterisk issue report.

Then, if you are submitting a patch, please review the [Patch Contribution Process|https://wiki.asterisk.org/wiki/display/AST/Patch+Contribution+Process].

> chan_unistim on 11, 13, 14 placing call on hold temporarily locks up set
> ------------------------------------------------------------------------
>
>                 Key: ASTERISK-26565
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-26565
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_unistim
>    Affects Versions: 11.24.1, 13.12.1, 14.1.1
>         Environment: Debian Linux x86 Intel, Debian Linux ARMh/ARMl
>            Reporter: Jason
>
> With a Nortel i2002 (also tested on unknown i2001) places or receives a call, and an audio path is brought up (as in, audio is transmitted and/or received from an application or another channel), eg: a call is established, pressing the hold button properly sets up a bridge of MOH to the other side (they hear music), a caller in this example. At this point, the Nortel set is locked. Icons indicate a call is on hold, but no further buttons effect any function. Looking at debug messages, when the switchhook is pressed, even repeatedly, a message is generated on every press: 
> "WARNING[2075] chan_unistim.c: Close call without sub"
> Interestingly, when the other end of the call hangs-up, the icon on the Nortel set indicates such, but remains locked. The UDP/RTP ports are still held at this point. But, placing a call to the same locked-up set, from any functioning channel, unlocks the set, and CLID etc are there, and ringing away. Answering the call, (on the Nortel set) it's all back to normal, and after parties hang up, both/all UDP/RTP ports are properly released. 
> (Note: ports being released is dependent on the patch from Igor which fixed this on 7 November, 2016.) This is repeatable on three Nortel sets, acoss releases. 



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