C2801 isdn connected?

Unanswered Question
Jul 6th, 2008
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Hi all

How can I check if the isdn NT (Network terminal) is really attached to mi BRI slot.

I use sh isdn status command and layer1 in some Routers is activated but in others is deactivated, but when i check my backup it works fine so the line is attached.(in the deactivated ones)

Thanks in advance

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paolo bevilacqua Sun, 07/06/2008 - 12:22
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Hi, it is normal that the switch deactivates BRI L1 and L2 after a timeout.

It is then reactivated when a calls is made or received.


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