Hi Gerd,

have you seen Olle's Project from 2017 about RadioBroadcasting?

https://www.kamailio.org/w/2017/11/oss-iris-broadcast-project-launched/

Best Regards
 Markus


On Tue, May 8, 2018 at 8:29 AM, Pinter, Gerd. <g.pin...@radionrw.de> wrote:

> Hello Henning, hello Community
>
> we are using high quality Codecs with bitrates up to 1500Kbit (PCM), but
> usually 128kbit (Mpeg1 Layer3 or AAC-LD). 128 is Not too much, but I want
> to be on the save side and therefore I prefer solution without Proxy.
> By the way I am audio engineer at a german commercial radio broadcast
> network and we try to establish our own "ISDN replacement-SIP Network" for
> reporting from events like Soccer Games, Karneval, Rock Concerts, Political
> Party Summits, Lawsuits...  whatever. I want to keep frontend as simple as
> it gets for the reporter.
> Anyway, people told me that the SIP Server of "Mayah Communications" is
> working without the need of stun or other Client side gadgets, but I am
> also told that this Mayah server works without Proxy functions. That
> Company won't tell me their settings of course, but if possible I'd like to
> have this feature for our SIP Server. At the moment I have still vast
> problems with connectivity from Devices that are logged on via Vodafone
> Mobile Network. Even Stun does not work. I guess that CGNAT of Vodafone
> (All of the Devices I have tested within Vodafone allocate IP Addresses in
> private range!) opens different Ports for different outbound connections
> which is the case if I use a 3rd party Stun Server. I have read a lot about
> this issue these days and there is solution, but I am not too deep into
> scripting an how to edit the kamailio.cfg. For example, I tried to start
> Kamailio with Stun, but if I tried to use the built in Stun, I've got error
> messages on the Client and also in the logfile of the SIP Server
> (incomplete header of Stun message) Anyone can help, please?
>
> Best regards Gerd
>
>
> Von: Henning Westerholt <h...@kamailio.org>
> Gesendet: Montag, 7. Mai 2018 20:56
> An: sr-users@lists.kamailio.org
> Cc: Pinter, Gerd. <g.pin...@radionrw.de>
> Betreff: Re: [SR-Users] Connecting UAs behind Firewall/CgNat with Kamailio
> without using a Stun Server
>
> Am Montag, 7. Mai 2018, 13:11:50 CEST schrieb Pinter, Gerd.:
> > Hi
> > Won't RTP Proxy cause al lot of traffic? We only have 155mbit for all IT
> > traffic, and our Sip Server also have to manage connections outbound our
> > house, where I thought it might be better let those clients do the
> payload
> > by peer to peer connection. If I got it right this traffic would flow
> thru
> > our Sip server with RTP Proxy enabled.
> > Thanks a lot
>
> Hello Gerd,
>
> you understood it correctly, indeed using rtpengine/rtpproxy would mean
> routing additionally your RTP traffic to your network. Depending on the
> number of sessions and the used codec it may work perfectly, only with some
> QoS tuning or not at all. You can estimate the bandwith, there are also
> some calculators online.
>
> Best regards,
>
> Henning Westerholt
>
>
>
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>



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