Re: [Asterisk-Users] Asterisk Realtime Capabilities

[Cameron Beattie]

I am in the early stages of doing something similar, but am planning to use 
SER. Why? Because various postings imply that's the better thing to do and 
that Asterisk isn't ready for the type of scenario you envisage - yet. Also, 
I see posts about problems with Asterisk RealTime that give me concern about 
its scalability. However I would prefer not to do this because integrating 
SER and Asterisk will be a pain e.g. voicemail notifications. So I would be 
keen to hear from you as you progress down your path - if it's better I'd 
like to switch!

Currently my plan is to have PSTN to IP gateways at PSTN interconnect points 
(e.g. ADIT600 with CMG02). These will route data to the centralised servers 
over a WAN i.e. Asterisk servers are not distributed.

Regards
Cameron
----- Original Message ----- 
From: "Rod Bacon" <[EMAIL PROTECTED]>
To: <asterisk-users@lists.digium.com>
Sent: Monday, April 04, 2005 1:24 PM
Subject: [Asterisk-Users] Asterisk Realtime Capabilities


Hello all. I am trying to architect a large-scale solution and need to 
know some of the capabilities of * using realtime configuration (I have 
read some docuemntation on the WIKI, but have not yet played with 
Realtime).

As the supporting docco is a little light-on at the moment, I'm hoping to 
get some meaningful feedback from those who've used it successfully.

Essentially, I'm trying to build a distributed network of * boxes which 
will terminate SIP/IAX/PSTN calls. I would potentially like to use a 
central "farm" of redundant * boxes in place of a single SER box (if 
possible) to act as the SIP (and IAX) registrar/proxy. I know that SER is 
a much more efficient SIP proxy, but I'm hoping that the addition of 
multiple * boxes will largely negate this fact, and provide redundancy.

Is it indeed conceivable to build a national network entirely of * 
servers, have users register via SIP/IAX to a load-balanced (not sure 
which mechanism I'll empoy here yet) farm of * servers (ie. an unknown 
server), and then receive calls from anywhere in the network (and 
outside)? In other words, can the registering server update a USRLOC type 
database on the fly, so all other servers know where to route calls for a 
given (dynamic?) client?

Also, I will be using multiple * boxes as media gateways. Is there an 
existing mechanism whereby a given server can record the number of 
busy/available ZAP channels to a central database for the purpose of call 
routing?



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