[Asterisk-biz] Largest Asterisk Implementation

[Greg Renouf]

Lee,

 

I have managed Asterisk site implementations (with sip phones) of up to 750
users- once the systems were tweaked & stabilized, Asterisk performed very
reliably for us. 

 

For large sites (200+ users), I use dual Xeon 3ghz with 1mb cache & 2GB
memory.  I have worked with brand-name servers (Dell, HP) and generic
servers- generic servers always seem to work best as there are less
opportunities for interrupt issues with Zaptel cards.

 

For smaller sites (50 or less) there are two options: use less powerful
servers, or solid-state appliances (no fans, CF memory).  The solid-state
option is most preferable, but you may find it difficult to find a vendor
who can provide you onsite support.

 

For very small sites (10 or less), and home workers, it would probably best
to not place a server onsite (where it is not necessary to have local PSTN
connectivity). If you don't need the advanced features of a sip/office
phone, I would strongly recommend you try the IAXY, or one of the other IAX
devices.

 

It will probably be necessary to upgrade the ADSL lines to full SDSL, and
upgrade to at least 20:1 or 10:1.  Make sure that the onsite routers are
able to manage IP prioritization for SIP or IAX.

 

You are not crazy to try this, but you are definitely taking a more risky
path (you won't get fired for buying IBM).  You can be successful as long as
you carefully manage the project carefully, and thoroughly review your
potential risks.  If you succeed, you can save your company a lot of capital
while providing them with a very flexible platform.

 

-GSR

 

 

 

  _____  

From: asterisk-biz-bounces at lists.digium.com
[mailto:asterisk-biz-bounces at lists.digium.com] On Behalf Of Lee Mason
Sent: April 20, 2005 12:59 PM
To: 'asterisk-biz at lists.digium.com'
Subject: [Asterisk-biz] Largest Asterisk Implementation

 

This is my first post to this list and I hope that I am targetting it at the
correct one so here goes:

 

I am just about the embark on a technology pilot of Asterisk. The structure
of the network is that we have one main office with a 100Mb pipe to an ISP
who hosts various systems in a central data centre. They also provide us
with a private IPVPN network to about 350 sites. The links to these sites
are 512Kb 50:1 ADSL at present. The purpose of the pilot at present is just
to prove the technology and decide what we need to do with our
infrastructure to support VoIP. I have a couple of questions.

 

1. What is the largest Asterisk deployment to date? If the pilot is
successful we are looking at about 100-150 users in a Head Office and about
500-600 users on the remote sites, plus about 50 other mobile users coming
in across the internet.

2. An I crazy even to consider this?

3. Has anyone got any experience of doing this sort of thing and any
experiences they can share with me?

 

I am sure that there are many other questions, but these are a start.

 

Many thanks,

 

Lee Mason

 

 

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