Full configuration details are at the Hylafax web site: http://www.hylafax.org.
You can download the Hylafax package for Red Hat 8 and 9 from:
hylafax-4.1.5-1rh8.i386.rpm
(Hylafax is not part of the Red Hat distribution.)
Then install it:
rpm -iv hylafax-4.1.5-1rh8.i386.rpm
fax2ps incoming.fax | lpr
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