I don't understand zaptel/ISDN

Hi,

I’ve got * running, with a lot of nice functions, and I really enjoy working on *

Now I have two PCI HFC ISDN cards, and want to put them to work (add channels to Asterisk), but I have a difficult time trying to understand the relation and meaning of: driver, zaptel, zapata, libpri, etc. I also read a lot of different procedures to do this. Some are talking about mISDN, some use BRIsftuff. I’m just looking for a good understanding, so I can decide which way to go. I’m not looking for config files or commands.

I hope someone can clear this for me,

Regards,

Mike.