From owner-freebsd-questions@FreeBSD.ORG  Thu Jan 18 16:02:00 2007
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Date: Thu, 18 Jan 2007 16:01:51 +0000
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On Thu, 18 Jan 2007 05:17:20 -0800 (PST)
anup roy <anupnow@yahoo.com> wrote:

> what is the differents beteween E1 link and PRI link. 
> why we use E1 link and why we use PRI link ?


PRI is an ISDN interface that can run on top of an E1.