[SR-Users] Kamailio to Asterisk Proxy with NAT

[Benjamin Marty]

I need the scenario for scalability on the asterisk side.

The scenario I still have in my head is that the clients -could- do the RTP
stream directly with the Asterisk Server. The Asterisk Instances have all
their own NATed Public IP (AWS EC2 Instances). But I think I will build
more problems than solving complexity with that approach.

I quite like the approach to use the internal network and don't use the
Asterisk Public IP's at all. So basically all Clients are doing SIP
Signalling + RTP Mediastream over the Kamailio Instance. Or would you avoid
that?

Thanks

Benjamin



2018-03-29 11:24 GMT+02:00 Daniel Tryba <d.tryba at pocos.nl>:

> > My Question is now how the RTP Media Stream should/can flow. The clients
> > are in different other networks. So P2P Media Stream isn't possible.
> Should
> > I now run the RTP Stream Client - Asterisk or Client - Kamailio -
> Asterisk?
>
> What do you want to accomplish?
>
> Fact is that asterisk has to handle RTP in case of transcoding or DTMF
> in RTP, reinvite/directmedia doesn't work in all scenarios. So why spend
> extra time/resources on relaying it on the kamailio machine with
> rtp(proxy|engine)? Having said this, it is much easier to maintain an
> asterisk cluster behind a machine with rtp(proxy|engine) doing NAT
> traversal.
>
>
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