[SR-Users] rtpengine via-branch=extra question

[Richard Fuchs]

On 11/18/2015 08:47 AM, Juha Heinanen wrote:
> rtpengine readme tells:
>
>    via-branch=... - Include the “branch” value of one of the “Via” headers
>    in the request to the RTP proxy. Possible values are: “1” - use the
>    first “Via” header; “2” - use the second “Via” header; “auto” - use the
>    first “Via” header if this is a request, or the second one if this is a
>    reply; “extra” - don't take the value from a header, but instead use the
>    value of the “extra_id_pv” variable. This can be used to create one
>    media session per branch on the RTP proxy. When sending a subsequent
>    “delete” command to the RTP proxy, you can then stop just the session
>    for a specific branch when passing the flag '1' or '2' in the
>    “rtpengine_delete”, or stop all sessions for a call when not passing one
>    of those two flags there.
>
> if via-branch=extra is used in offers of branched, should it also be
> used in answers and deletes?

Yes it should, as rtpengine uses the via-branch to match the answers to 
the offers which didn't have a to-tag. Looking at the sources, the same 
logic appears to be missing in the code handling the deletes. I'll fix 
this oversight soon.

Cheers