[Asterisk-doc] Connecting to a PRI

[Rod Dorman]

On Friday, August 12, 2005, 11:54:36, Jim Van Meggelen wrote:
> asterisk-doc-bounces at lists.digium.com wrote:
>> On Thursday, August 11, 2005, 21:28:18, Nick Bachmann wrote:
>>>> ...
>>> As other people have pointed out, T1s are North American. The
>>> generic term DS1 is probably best here--a DS1 can be an E1,
>>> T1, J1, etc. 
>> 
>> Isn't E1 32 DS0's whereas DS1 is 24 DS0's?
>
> E1 is 32 DS0s, T1 is 24 DS0s, 
>
> A DS1 is a trunking facility which is composed of DS0s. In some parts of
> the world, a DS1 will be 32 Channels, in others, A DS1 will be 24
> channels. This inconsistency is probably why the term DS1 is so rarely
> used - it begs the question: E1 or T1?

As  this  thread  is  illustrating there's a need to distinguish between
transmission  rates (DS0, DS1, E1, DS3, etc.) and the carrier technology
used (T1, T3, etc.)

-- 
rodd at polylogics.com   Usenet is like a herd of performing elephants
Rod Dorman            with diarrhea; massive, difficult to redirect,
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