[Asterisk-Users] large analog to asterisk

[William Boehlke]

The rule of thunb we use is 5% of the in-room stations will be in use at a
time.  

-----Original Message-----
From: asterisk-users-bounces at lists.digium.com
[mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of Rusty
Shackleford
Sent: Friday, April 15, 2005 10:45 AM
To: 'Asterisk Users Mailing List - Non-Commercial Discussion'
Subject: RE: [Asterisk-Users] large analog to asterisk

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of shane 
> fowler
> Sent: Friday, April 15, 2005 10:10 AM
> To: asterisk-users at lists.digium.com
> Subject: [Asterisk-Users] large analog to asterisk

> 600 analog connections.  Some rooms have 2-3 phones so as a rough 
> number i'm saying 700 total.  I see where some people use the Adit 600 
> to do up to 48 analog connections that trunks over 2 T1 connections 
> back to asterisk but for 700 phones thats 15 Adits with 30 T1's....how 
> in the world would you do that??  just several asterisk servers with 
> 2-3 Adits per server?  is there any other way?  I'm open to 
> suggestions.

Remember that in a hospitality environment, the volume of simultaneous calls
is typically quite low, given the number of stations in the system.

You could use 600's with the CMG-02 cards to backhaul to asterisk via MGCP.
Asterisk's MGCP handling is not as robust as it might be, but it may serve
your needs.

Another option would be to bank on that high stations:calls ratio. In other
words, you'll never need to provide 700 DS0's directly into the PBX. We
spec'd a very similar (400 stations) hospitality system recently using a
slug of Adtran 624's hanging off of an Adtran 830 equipped with
5 quad T1/PRI cards. Careful planning and dial-plan design can keep most
inter-station traffic at the 830, with only those calls requiring trunk or
PBX feature access traversing a small number of T1's between the 830 and the
PBX (asterisk).

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