Try configuring backup delay and backup interface command under the serial interface mentioning the time delay you prefer to have your isdn triggered and time delay to monitor the LL Ckt and bring the ISDN back to down state.
Using backup interface command you can point the primary wan interface to make use of the interface which u have mentioned whenever theres a failure detected with the primary ckt..
int serial 0/0
backup delay 5 10
This will trigger the isdn line after 5 secs from the time ur leased ckt goes down and bring the isdn connectivity down after 10 secs of normal functioning for ur leased ckt.
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.