[asterisk-bugs] [JIRA] (ASTERISK-25568) 180 Ringing not sent after 183 Session Progress

[Rusty Newton (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-25568?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=228377#comment-228377 ] 

Rusty Newton commented on ASTERISK-25568:
-----------------------------------------

Sorry I thought I had commented with a canned response to remind you about getting the patch on Gerrit:

Once you've followed the Code Review process [1] and submitted your code to Gerrit [2] be sure to edit this JIRA issue and add the Gerrit review URL in the appropriate field.

Thanks!

[1] https://wiki.asterisk.org/wiki/display/AST/Code+Review
[2] https://wiki.asterisk.org/wiki/display/AST/Gerrit+Usage



> 180 Ringing not sent after 183 Session Progress
> -----------------------------------------------
>
>                 Key: ASTERISK-25568
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-25568
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General
>    Affects Versions: 13.6.0
>            Reporter: Morten Tryfoss
>            Assignee: Unassigned
>            Severity: Minor
>         Attachments: chan_sip.patch
>
>
> We've got a simple scenario with a SIP call through Asterisk.
> sip.conf
> progressinband=no (default setting)
> The remote switch sends a 100 Trying and a 183 Session Progress immediately after we send the INVITE. When the remote destination starts ringing (CPG received on ISUP-side of the switch), the switch sends a 180 Ringing to Asterisk. This is not forwarded to the other side, which I think is wrong.
> This can cause lack of ringback tone or wrongly mapped release causes in the originating switch. For example, a 480 temp unavailable is mapped to "20 - subscriber absent" if it has not started to ring, or "19 - no answer from user" if it has.
> The attached patch solves the problem for me.



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