[Asterisk-Users] Difference between E1 and PRI

[Altus Snyman]

PRI comes in 2"versions" E1 European and T1 US
E1 30 channels T1 23 channels 


On Wed, 2005-02-23 at 14:15, Eric Bishop wrote:
> Hi all,
> 
> I have seen the term E1 and PRI used interchangably when referring to
> a voice service with 30B channels and 1 D channel. Are they just
> different terms for the same thing or is there some technical
> difference. Even Newton's telco dictonary seemed a bit fuzzy on this
> topic. I have seen it said the PRi is a protocol that runs on top of
> E1. Is this true?
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