[asterisk-biz] Asterisk for 3000 Users

[Johansson Olle E]

4 dec 2008 kl. 09.31 skrev Nishant Prakash Kashyap:

> Hi All,
>
> Can anyone guide me Server Sizing and Best Method for Implementing  
> Asterisk for 3000 Users to be increased to 5000 Users in coming 2  
> years.

Well, the number of users doesn't say much about how many simultaneous  
phone calls you're going to process. That's the important
factor here. As you see from other replies, one asterisk box will  
never be able to handle the amount of calls, even though it could
handle 5.000 registrations. You need to find a way to scale, and  
different people have different opinions about it.

I focus on the SIP protocol and scale by using a SIP proxy in front of  
Asterisk. Other people focus more on Asterisk itself and build  
scalability with
database clusters and Asterisk's own protocol called Dundi. There are  
many ways and much advice to be found if you
search the web and the mailing lists.

Before you go any further, find out some important facts

- How many simultaneous calls? At which hours?

- Any need for monitoring, conferencing or other CPU-intensive voice  
applications?

- Do you need NAT support for the devices?

- Will every user only have one phone or multiple phones?

There are plenty of people on the list who work as consultants with  
this kind of setup, and as Alastair said,  looking at it from an
service provider background this is a fairly small platform.  
Currently, I'm involved in a project that starts with 50.000 users.
This means that you won't explore uncharted waters, the solutions for  
your problem exists out there and has been in use for a long time.

Regards,
/Olle