[Asterisk-Users] Mission-Critical Deployments

[Ed Greenberg]

--On Thursday, November 17, 2005 11:13 AM -0500 C F <shmaltz at gmail.com> 
wrote:

> Use Channel Banks, they are the best possible. A quad port T1 gives
> you 96 channels, all can be used for analog stations. which means you
> will need at least 2 quad t1 cards. I personaly like the Adit 600 for
> this job.
>

We did a smaller PBX... 40 extensions, 20 outgoing modems for polling 
distant equipment.

We have a 6mb incoming internet connection with no QOS or VLAN work done.

We used, and I'm happy with, the Audiocodes MP124 for analog extensions. 
Rock solid, presents a SIP interface to Asterisk. Store configs on a tftp 
server. We even do outgoing modem calls over the MP124. Haven't played with 
fax yet.

We bought used Cisco 7960s from VoipSupply for the sets. Got 40 good ones - 
no returns.

I wrote some scripts that allow me to rebuild extensions.conf, sip.conf, 
voicemail.conf and the Cisco .cfg files from a few flat file tables that 
can be maintained in excel (or vi :) I want to go to Realtime for those 
config files, so I can do a small PHP app and offload the add, move, change 
feature.

We ported our block of 100 DIDs from SBC to Level3 (we are direct connected 
to L3) for VoIP delivery. Also ported a few 800 numbers.

Wrote two IVRs for answering the two 800 numbers, and also for callers who 
transfer out of voicemail.

We also have a channelized T1 for a specialized application. Terminated it 
in a TE410.

We run the PBX on a Dell 1850. Two power supplies, UPS, Raid 1, Fedora Core 
3, Asterisk 1.2beta1 (gonna upgrade soon).

No significant complaints.

Is it mission critical? Well, if it goes south, 35 angry people and about 
10 million in annual sales will be impacted. (Also, children will not get 
their ice cream -- one of the businesses is ice cream distribution :) It's 
critical to MY mission as their consultant that they be happy, so I guess 
it is.

The server load average doesn't even get off the peg.

I would not hesitate to put another 200 extensions on it. Go for it.

</edg>