BRI Connection

Unanswered Question
Sep 12th, 2007
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I am trying to connect a 2821 router with NM−4B−S/T to 2811 router with NM−4B−U.

I installed the cards, made a crossover ISDN cable (3-6,4-5) and connected each other.

but there is no light, nothing.

Please help.

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lgijssel Wed, 09/12/2007 - 00:18
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This setup will not work. You are going to need an ISDN switch in between.



okanyilmaz Wed, 09/12/2007 - 01:06
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what is an isdn switch?

Can i use a router instead?

lgijssel Wed, 09/12/2007 - 01:26
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An ISDN switch is what a telephony provider uses to provide ISDN lines. I suppose that you have non of these around.

A router will not help you further, you could hook up both routers to an ISDN line if you have one. Even better would be to use two separate ISDN lines.



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