[Asterisk-Users] T1 Copper or T1 Fiber Line

[dthurn at tstt.net.tt]

Thanks for the inso...

So T1 lines in the United States also use copper lines from the company to 
the telephone exchange in some installations?

What's the benefit to the subscriber to this?


----- Original Message ----- 
From: "Andrew Kohlsmith" <akohlsmith-asterisk at benshaw.com>
To: <asterisk-users at lists.digium.com>
Sent: Friday, June 16, 2006 9:11 AM
Subject: Re: [Asterisk-Users] T1 Copper or T1 Fiber Line



> Any T1 I've seen in the last 3 years has actually been DS1-over-HDSL2. 
> What
> comes in to the building is a single pair of copper into the smartjack, 
> and
> then you have a traditional DSX1 to plug in to.  I don't think "real" T1s 
> (in
> the physical sense) have existed for years.
>
> Before DS1-over-HDSL2 the ones I had provisioned were DS1-over-HDSL (2 
> copper
> pairs)... never had a real, genuine T1.
>
> But again... you don't get to play with that side of it.  You order a T1, 
> you
> get a smartjack that has a T1 jack (DSX1) on it and what's on the other 
> side
> is irrelevant.
>
> -A.
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