LinuxNewbie's latest Newbieized Help File covers some of the
broad strokes of making a modem (a non-winmodem specifically) work
with Linux. Decent general configuration tips covering more than a
single distribution:
"This NHF will not discuss winmodems. Winmodems use
software which emulate hardware routines that hardware based modems
perform in order to keep costs down. If you have one, you may want
to go to http://www.linmodems.org to see if your particular modem
is supported.
If you're modem is an ISA or an external (connected to com port)
chances are it is already configured. The way to tell is to issue
the following command: setserial -bg /dev/ttyS* (may need to be
root) The following should appear: (in the case of ISA /
external)
/dev/ttyS0 at 0x03f8 (irq = 4) is a 16550A
/dev/ttyS1 at 0x02f8 (irq = 3) is a 16550A
For PCI modems, you may need to do a little work."