[Asterisk-Users] Virtual PBX (*)

[Girish Gopinath]

Hi,

I have received some replies for my previous mail (* configuration), asking 
for my goals in configuring Asterisk. So here they are:

We are planning to host an Inter continental virtual PBX service that will 
enable our users to register for an account which give them a toll-free # or 
a DID.

Once registered using a web based interface, that user can add as manay 
extensions he/she wants and people can be conencted from remote locations in 
Japan, India using Asterisk and have a US based phone #. We already have 
tie-ups with some of the carrier providers in the US. The initial tests were 
successful, we were able to divert calls using IAX2, and we are expecting 
around 100 virtual PBX owners and around 2000 users to make use of this 
facility, that includes features like Call forwarding, VM, IVR, NAT 
traversal etc.

I'm trying to put together a document for my company which would help users 
in setting a service of this magnitude using Asterisk and help here would be 
greatly accepted, and I promise once finished I will publish all my test 
results here in the group.

Now, lets assume I have a linux box on a dual processor 3.2 GHz Intel box 
with 4GB RAM, RAID system and at the data center we would have bandwidth of 
around 1Mbit

1) How many Voicemails can be recorded at a time?
2)How many IVR's it can handle simultaneously?
3)Whether Postgres or Mysql is best suited?
4)How many NAT traversal relay sessions can be there at a time?
5)How to cluster multiple * boxes? (for failover dialing)

I would also appreciate any user experience in setting up similer systems 
using *. and the problems
they had to face etc...

Regards...

Girish

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