[SR-Users] Proxying BFCP

Daniel-Constantin Mierla miconda at gmail.com
Tue Sep 15 14:23:25 CEST 2020


a quick search on rtpengine and BFCP returned a rather old issue opened
on rtpengine project quite long time ago:

  * https://github.com/sipwise/rtpengine/issues/80

Not sure if the resolution was that it works relaying through rtpengine
or just do not touch the SDP attributes related to it.

Anyhow, I would just go ahead and test with rtpengine and see if works.


On 15.09.20 10:54, René Hansen wrote:
> Hi,
> I'm rather new to Kamailio and RTPEngine, so I'm looking for some help
> in locating any insights, documentation, guides or examples that
> resemble my use case.
> Currently I've got both running in working order and I can do SIP
> calls with both video and audio. Now I'm trying to figure out how to
> pass through BFCP as well. From what I understand so far, since BFCP
> isn't strictly RTP, it's not something that's outright supported.
> Please correct me if my assumption is wrong.
> My observation is that "*m=application PORT {UDP,TCP}/BFCP
> **"/ /SDP/ /lines doesn't seem to open for traffic as other media
> lines do. (Obviously expected if it's not supported)
> So I'm really just looking for any suggestions for, or where to start
> looking, in getting BFCP support.
> I do have the option of BFCP over both TCP and UDP, so if I could
> somehow include the originator IP as an added attribute in the
> re-written SDP answer, I could then just connect directly, around the
> proxy. I've yet to figure out how to do that as well however.
> Any pointers are much appreciated.
> Regards,
> René Hansen
> _______________________________________________
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Daniel-Constantin Mierla -- www.asipto.com
www.twitter.com/miconda -- www.linkedin.com/in/miconda
Funding: https://www.paypal.me/dcmierla

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