[asterisk-users] Meridian S1 to Asterisk via T1

[Michelle Dupuis]

This is going into an emergency response facility...where they currently
have a Nortel Option 61 (I think).  They want to slowly phase into VoIP.
They will need 1000 phone set capacity (assuming full migration). 

My fear of connecting their PBX directly to the PC (PCI card) is the
potential for a PC crash.  If that somehow takes down their PBX there will
be hell to pay.  (If it were just a regular office environment it would be
ok).

MD

> -----Original Message-----
> From: asterisk-users-bounces at lists.digium.com 
> [mailto:asterisk-users-bounces at lists.digium.com] On Behalf Of 
> Alex Balashov
> Sent: Friday, September 07, 2007 2:38 PM
> To: Asterisk Users Mailing List - Non-Commercial Discussion
> Subject: Re: [asterisk-users] Meridian S1 to Asterisk via T1
> 
> 
> Michelle,
> 
> On Fri, 7 Sep 2007, Michelle Dupuis wrote:
> 
> > I have to connect a Meridian S1 to Asterisk for a slow 
> migration to VoIP.
> > What is the best way to connect them?
> >
> > 1. Is a T1 the best solution?
> > 2.  Can I pass Caller and Callee information across the link?
> >
> > If a T1 is best, I recall a standalone T1-SIP device a year ago on 
> > this list.  Does anyone recall what the device was?  How 
> well it works?
> 
>    You can just get a Digium (or Sangoma or whatever) PRI 
> card for Asterisk and take the T1 directly from the PBX, and 
> that would be the simplest and most economical option.  Part 
> of Asterisk's capabilities is to interface extensively with a 
> range of TDM hardware and signaling protocols.
> 
>    PRI would be most reasonable, but those systems also 
> support CAS, E&M, however you want to hand it off.
> 
>    The other option - what you are referring to - is a media 
> gateway, and most of those are built to scale to higher 
> purposes than yours in terms of call density and volume, and 
> are a much more expensive and unnecessary option unless 
> something about stringing a T1 to a PC repulses you.
> 
> Good luck,
> 
> -- Alex
> 
> --
> Alex Balashov
> Evariste Systems
> Web    : http://www.evaristesys.com/
> Tel    : +1-678-954-0670
> Direct : +1-678-954-0671
> 
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