I may have a similar modem, I never managed to make it work ,
visit the page for hints :
http://rzr.online.fr/linux.htm
or
http://rzr.online.fr/docs/comp/modem.htm
My modem is in a Fujitsu laptop Amilo A.
This is an Audio Modem Riser (AMR) modem thus PCID are not very helpfull
# lspci
00:03.0 Modem: ALi Corporation Intel 537 [M5457 AC-Link Modem]
# lspci -n -s 0:3.0
00:03.0 Class 0703: 10b9:5457 # read ? : VendorID : DeviceID
# pcitweak -l # read as vendorID,DeviceID SubvendorID,SubDeviceID rev RevisionID
PCI: 00:03:0: chip 10b9,5457 card 1734,100a rev 00 class 07,03,00 hdr 00
modem in a Fujitsu laptop Amilo A (see my config files there).
SPECS
This is an Audio Modem Riser (AMR) modem thus PCID are not very helpfull
# lspci
00:03.0 Modem: ALi Corporation Intel 537 [M5457 AC-Link Modem]
# lspci -n -s 0:3.0
00:03.0 Class 0703: 10b9:5457 # read ? : VendorID : DeviceID
# pcitweak -l # read as vendorID,DeviceID SubvendorID,SubDeviceID rev RevisionID
PCI: 00:03:0: chip 10b9,5457 card 1734,100a rev 00 class 07,03,00 hdr 00
I tested all known drivers none works
Please help at
http://groups.yahoo.com/group/amilo/