[newbie] PCMCIA modems

[poogle]

I am trying to get a PCMCIA modems to work under Kppp (MD7.1, Sony Vaio PCG
F250) I have tried all the /dev options from /dev/modem to whatever the last
one is and either get modem busy, can't open modem etc. If I set flow control
to "none" and then try to query modem, it will say modem ready and check the
ATI commands but the resulting table of ATI commands is blank.
The shop told me that all PCMCIA modems are "hardware" modems, were they wrong,
have they sold me a Winmodem ?