ISDN Seconds Unavailable

[m40chm]

Hi,

I have some 2610 routers used so remote users can dial up. These typically have between 8 and 10 interfaces configured.

On some lines, the idle timer isn't counting down, and the show isdn history command shows that the Seconds Left column has an entry Unavail (as in unavailable). The Seconds Used counter counts up normally. Other lines that are connected at the same time idle count normally. The config is the same for all interfaces.

Anyone come across this before?

TIA

 

[BAsh12]

Please post the config for both ends. Without tel numbers and remove the passwords. Also what IOS are you on. Do you have any other modules installed in the wic slot? I take it the ISDN interfaces are on an 8 port NM card?