[sr-dev] git:master: rtpproxy(k): Send Via branch to rtpproxy

[Andreas Granig]

On 04/19/2012 06:21 PM, Klaus Darilion wrote:
> +1
> 
> I would have needed this feature some time ago when I played around with
> v4/v6 bridging

We're using this feature together with ngcp-mediaproxy-ng
(http://deb.sipwise.com/spce/2.5/pool/main/n/ngcp-mediaproxy-ng/) since
SPCE v2.5.

The thing here is that to take full advantage of it, rtpproxy needs to
support it in more detail. It basically works fine because the call-id
will be "callid;viabranch", so the via-branch is considered part of the
call-id in rtpproxy, but if you do unforce_rtp_proxy() without a
via-branch, it won't find the call, so you need to use
unfoce_rtp_proxy("2") if you did rtpproxy_offer("1") or
rtpproxy_answer("2").

In ngcp_mediaproxy_ng, we whipe out all branches if no via-branch is
passed in unforce_rtp_proxy(). If the stock rtpproxy wants to take
advantage of that as well, it should check for a via-branch token in the
call-id also and act accordingly.

JFYI,
Andreas

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