[asterisk-bugs] [JIRA] (ASTERISK-28036) Codec negotiation when incoming re-INVITE has no SDP

[Joshua Colp (JIRA)]

    [ https://issues.asterisk.org/jira/browse/ASTERISK-28036?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=244690#comment-244690 ] 

Joshua Colp commented on ASTERISK-28036:
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Personally I consider this use case new functionality which would need to be behind a configuration option.

>  Codec negotiation when incoming re-INVITE has no SDP
> -----------------------------------------------------
>
>                 Key: ASTERISK-28036
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-28036
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_pjsip, Resources/res_pjsip_sdp_rtp
>    Affects Versions: 13.22.0, 15.5.0
>         Environment: Centos 6.10, 64bit
>            Reporter: Daniel Harper
>            Severity: Minor
>
> I appreciate that there might be a view that this is a feature request but I also believe that it could be also be viewed that this is a bug but I welcome the discussion.
> When recieving an re-Invite without SDP asterisk is not re-offering all supported media formats & codecs only the previously determined one.
> I found this link that references the various RFC's where this behaviour is expected. 
> Where this is an issue is in a call-pick up scenario where asterisk is dialing a call-pick feature code to pick up a external call. The issue being that the call being picked might not support the originally determined codec.



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