[Spce-user] rtpengine usage in serial forking

Richard Fuchs rfuchs at sipwise.com
Wed Jan 21 09:01:39 EST 2015

On 01/21/15 06:42, John Nash wrote:
> Dear Guys,
> I need to use rtpengine where I am forking invite between a media server
> (For some announcement and dest gateway).
> I looked at via-branch flag and looks like that should be used there but
> I am not sure about complete flow.
> Should I call rtpproxy_offer with via tag for each branch (Branch
> route)?...what about when I receive two session progress?...and how can
> I delete one specific branch session?

The via-branch is currently not used by rtpengine, instead the from- and
to-tag is used to distinguish between multiple dialogues within the same
call. This is normally enough to establish media even if multiple media
responses are received. Session deletion also works as long as the
to-tag is included.


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