[asterisk-bugs] [JIRA] Feedback Requested: (ASTERISK-20119) Peer MWI subscriptions erroneously removed when another SIP dialog is destroyed

[Rusty Newton (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-20119?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Rusty Newton updated ASTERISK-20119:
------------------------------------

    Assignee: Misha Vodsedalek
      Status: Waiting for Feedback  (was: Triage)

Misha, do you know whether this issue exists in trunk, and is your patch tested against trunk?

> Peer MWI subscriptions erroneously removed when another SIP dialog is destroyed
> -------------------------------------------------------------------------------
>
>                 Key: ASTERISK-20119
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-20119
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General
>    Affects Versions: 1.8.14.0
>         Environment: Asterisk 1.8.14.0
>            Reporter: Misha Vodsedalek
>            Assignee: Misha Vodsedalek
>         Attachments: 20119.patch
>
>
> A peer MWI subscription gets cancelled when another SIP dialog (unrelated to the MWI subscription) gets destroyed. The MWI light on phones that rely only on subscription messages stops working (e.g., Nortel 1100 and 1200 series phones with SIP firmware).
> The problem is caused by an incorrect check if the dialog that is being destroyed is related to the MWI subscription.
> The same issue exists in Asterisk 1.6 as well as Asterisk 10.

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