[Asterisk-Users] T1 and FX CPE

[Matthew Boehm]

The T1 between us and the customer is less than $100. This is why we are
trying for this option.

Matthew
----- Original Message ----- 
From: "Steven Critchfield" <critch at basesys.com>
To: "Asterisk Users Mailing List - Non-Commercial Discussion"
<asterisk-users at lists.digium.com>
Sent: Friday, November 26, 2004 10:04 AM
Subject: Re: [Asterisk-Users] T1 and FX CPE


> On Fri, 2004-11-26 at 09:42 -0600, Matthew Boehm wrote:
> > Hey guys,
> >   Looking for some suggestions here on hardware to use.  We have several
> > business customers wanting to start using our VoIP service. We will be
> > replacing their 10 year old Panisonic system with Cisco 7940 phones and
a
> > T1. Problem is, they have to keep 1 POTS line for directory listing and
911
> > emergency failover.
> >   I would like suggestions on how to accomplish this. Our asterisk
cluster
> > is downtown so we can do the T1 between us and them easily. However, the
> > FX911 is the big problem. Lets say that the T1 line goes down and
someone
> > tries to dial 911. Normally the call would go over the T1 down to
asterisk
> > cluster and go out over PRI or an FX card. But if the T1 is down, you
can't
> > do that. So, the POTS line needs to be plugged into something at the
> > customer site.
> >  There are a few Cisco routers that will accept both the T1 and the FX
but
> > we can't intercept a SIP call at the router. Right now, the only
solution we
> > can think of is putting an asterisk box at their location with an FX
card.
> > That way if the T1 goes down, they can still dial intra-office and dial
911
> > out the FX card.
> >
> > Other suggestions are wide-arms-openly welcome.
>
> Maybe you should verify that a frac T1 of PSTN wouldn't be a cost
> effective option. It would eliminate the 911 problem, the directory
> listing problem, and could allow you to not worry about the analog
> line.
>
> For instance in our market, a point to point T1 loop costs between $250
> and $300 plus taxes. A full PRI is only $650 plus taxes. At some point
> in between I'm sure you might find the sweet spot for your customer that
> handles the number of calls they need and has a relatively decent
> cost.
> -- 
> Steven Critchfield <critch at basesys.com>
>
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