4 port v90 card Chase Research Perle PCI RAS4 w/voice

I have 2 cards they are identical except one has a Connextant chipset and the other Rockwell, I paid $600 ea around 1999 for a FAX voice server, there are linux drivers but I believe linux has built in native drivers for the card…

Do you think these will work as FX0 ports?

In the setup what would I need to try?