[NCLUG] Asterisk & T1

[jeff]

I'm getting a data T1 to FRII and will connect it to a Sangoma A101 
running either GNU/Linux or OpenBSD.

I thought it would be cool, if possible, to peel off a few channels (say 
4) and use them to provide free local VoIP.

FRII has their own VoIP type services, but I wanted to do this myself to 
learn more about it and to experiment with Asterisk.

The only way I can figure this can be done is to use a PRI, which is way 
more expensive that a point-to-point T1.

So, ideally I would like data bandwidth to FRII and have some channels 
dynamically allocated to the PSTN. Or, if that isn't possible, have a 
few channels dedicated to the PSTN.

I'd also like to do it with a card I can pop in a Free Software box, 
instead of some black box, so I can play with it. :)

Ideas? Input? Anyone? :)

Thanks,

-Jeff