ISDN Call generator

I have a very basic question about Asterisk.

Is it possible that Asterisk (software) on a Linux machine with ISDN PRI/BRI PCI Cards (hardware) be used to generate ISDN calls without any phyiscal ISDN phones?

I found other ISDN call generators which are very expensive, so I wanted to know if its possible to build one using the right software and hardware.

Thank you,

Yes, your scenario is possible to implement with Asterisk.