Given that the line holds for so long there is no point debugging the negotiation or authorisation because they obviously succeed.
Debugging isdn q921 will allow you to look at whats happening on layer 2. If, say for instance, there was a circuit fault, or faulty exchange device you would see the presence of SABMEp being transmitted. These packets effectively tell the signal channel (d-channel) to reset due a fault. This will cause the circuit to momentarily go down and come back up.
This is actually a pretty cool feature, i didn't even know it existed until I was looking for a solution to advertise a subnet (prefix in BGP talk), only if a certain condition existed. This is exactly what conditional advertisements does
j ai une question j ai achete un routeur cisco 887VA-k9 , je le configuré avec la configuration ci- dessous
si je le lier avec mon pc portable sur l un de ses ports directement ça marche toute est bien ( la connexion internet + m...
Attached policy provides CLI access to the Cisco 4G router over text messaging. Two files are in the attached .tar file:
2. PDF with instructions on how to load and use the .tcl file.