[OpenSIPS-Users] opensips-cp CDR correlation

[Iñaki Baz Castillo]

2009/4/30 Dan Pascu <dan at ag-projects.com>:
> On Thursday 30 April 2009, Iñaki Baz Castillo wrote:
>> Yes, I agree on it. However I just wanted to mean that using a
>> media-proxy is not the best solution for all the cases, specially when
>> clients are behind same NAT (an office for example) and the PBX/Proxy
>> is hosted in some datacenter.
>
> There is no reliable way to detect if 2 devices are in the same LAN behind
> NAT.

Yes, this should be configurable by the provider depending on the
client topology (not just "auto-detect").


>> Also, for calls to a gateway in our same datacenter, forcing the RTP
>> through a media-proxy is not the only solution. Using SessionTimers
>> (so a B2BUA is required and not just a proxy) is also a good solution
>> (and cheaper since no servers are needed for relaying the media).
>
> That is not actually accurate.

Why not?


> No _new_ servers are needed, as in you can
> reuse any existing server for this purpose. Nowadays mediaproxy is very
> efficient because it uses conntrack rules in the kernel to forward the
> packets. It does forward hundreds of media streams with virtually no load
> on the CPU,

And if I need thousands of media streams? wouldn't I need more servers?



Regards.


-- 
Iñaki Baz Castillo
<ibc at aliax.net>