Cisco configuration help

Please help me. I have, for the past few weeks, been trying to get something right.
We have an AS 5300 with and octal PRI card and 240 soft mica modems. At the moment only one PRI circuit is used (and one Chanelised E1, but don't think that is relevant here). What I want to do is assign a modem pool of 30 modems to the used PRI circuit (for monitoring purposes, at the moment all modems are being used). I know how to create the modem pool. I just need help limiting the Pri to that pool.

I know this is not really security related, however, in my short time here I have noticed that alot of people here really know Cisco. :bigsmile: