[asterisk-bugs] [JIRA] (ASTERISK-24495) Re-invite not changing RTP stream

[Joshua Colp (JIRA)]

     [ https://issues.asterisk.org/jira/browse/ASTERISK-24495?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Joshua Colp closed ASTERISK-24495.
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    Resolution: Not A Bug

This isn't a bug. The SDP version number is indeed not incrementing.

In the initial 200 OK back the version number is "1415186588".
In the subsequent re-invite the version number is "374555000".

Since the version number of "374555000" is LESS than the previous SDP it is ignored. The new SDP version number should be higher.

To quote the RFC:

"<sess-version> is a version number for this session description.  Its
      usage is up to the creating tool, so long as <sess-version> is
      increased when a modification is made to the session data."

> Re-invite not changing RTP stream
> ---------------------------------
>
>                 Key: ASTERISK-24495
>                 URL: https://issues.asterisk.org/jira/browse/ASTERISK-24495
>             Project: Asterisk
>          Issue Type: Bug
>      Security Level: None
>          Components: Channels/chan_sip/General
>    Affects Versions: 11.11.0
>         Environment: VirtualBox VM running CentOS 6.5
>            Reporter: Peter Jamieson
>            Severity: Minor
>         Attachments: full.zip
>
>
> When i send a re-invite back to asterisk with a new RTP port, it is not changing the stream.  I can get around it by setting ignoresdpversion=yes, but i believe that the version number is not the same and it should be changing it anyway.



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