C2801 isdn connected?

rperez1976 · ‎07-06-2008

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

paolo bevilacqua · ‎07-06-2008

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.