hello,
my modem is internal---motorola sm56 PCI my kernel version is 2.4.21-4.EL
vidya
You are done. AFAIK redhat wasn't supporting this modem after 7.1 plug.org.in/pipermail/plug-mail/2003-June/008510.html
try googling 'motorola sm56 pci modem RHL'. You'll meet the club.
Another noodle who bought this modem and then tried to get it working on lin Gishu