Tell me what outputs you need from the terminal.
What's the output of lsusb
after you have plugged it in and waited 10S ? This'll tell us what the device really is (the likely chipset).
Some of these devices show up as being a CD-ROM when first plugged in. This "CD-ROM" has the windows drivers (useless for linux). You need to switch it using usb_modeswitch
before it will show up as /dev/ttyUSB0
shows up, you can use the device with wvdial
See man wvdial
and man wvdial.conf
(or just search LQ)
Let us know how you get on.