Hardware Firewall?

[Alfred]

Hi:

Where I live there is no DSL, No High Speed Internet, yet for better
security, a Hardware Firewall, is recommended over top of a Software
Firewall like Firestarter. Is there some way that a Hardware Telephone
Modem (56K), could be hooked up to a Hardware firewall, like say one of
the Trendnet DSL Hardware Firewalls, to give better firewall Protection,
while not making use of a DSL Modem, but a 56K Modem instead?

Alfred!