CF29 dial up modem painfully slow

I have a cf29 mk1 toughbook with a painfully slow dial up modem. The pages will sit blank for ever and then load all at once.
Im running win xp pro and downloaded the driver package CF29MK1.zip and reloaded the driver for the modem but it did not help. The modem is also comimg up as a agere modem but is called a Ambit T60M283 on the rear of the computer.
Any help would be greatfully received.

Thx