[OpenSIPS-Users] opensips-cp CDR correlation

[Dan Pascu]

On Wednesday 29 April 2009, Iñaki Baz Castillo wrote:
> LAN traffic is cheap? perhaps I should describe again the scenario I 
> described:
> 
> A company using a *hosted* virtual proxy/PBX service. The provider (the 
> proxy/B2BUA is in some datacenter while the phones are in the company 
office 
> behind a NAT router). There is no media-proxy in the LAN. If you force a 
> media-proxy it should take place out of the office (so comsuming 
> ADSL/SHDSL/... bandwith).

There's a saying that all good things in life are illegal, immoral or make 
you fat ;)

It's a tradeoff. If you are not willing to make it, then don't. Find 
another way to solve your problem. I'm sorry if you got the impression I 
was trying to convince you of anything...

> In my example, I clearly spoke about a conversation between two phones
> in the  LAN.
> With your suggestion (using a media-proxy to ensure the accounting 
> reliability) the audio would go and back to the provider datacenter (in
> which the media-proxy resides).

My bad. I was under the impression that we are discussing ways to prevent 
a user from hacking a system and getting calls which are free of charge. 
In my (limited) knowledge, this only applies to PSTN calls (which have a 
fee). Maybe you care to elaborate why do you care for accounting for free 
(as in no fee involved) SIP to SIP calls or why would a user be interested 
in hijacking a SIP to SIP call that is free of charge?

-- 
Dan