Here you find Linux software to drive 3com network cards.
Both of these two Netgear Ethernet NIC-s worked just out of the box under SuSE Linux 8.2; they just needed minimal set up in YaST.
My FRITZ!Box call monitor read_fb_port_1012.rb
is a pretty powerful utility.
T-Online call their UMS fax&fon, and they forward your incoming facsimile and voice messages as MIME encoded e-mail messages to your e-mail box with T-Online