Kelvin wrote: > found the modem port . I'm very sure that my modem > (com 3) able to detect if I switch OS to microsoft > window . Sure if com3 is detected by win then you should set it up so /dev/cua2 in Linux. BUT (very big BUT) is your modem internal modem? If it is chances are that it is winmodem and this you cannot use under Linux. Sudev