"Faxes are the technology that won't die. Having become popular
in the 1970s, they persist in modern business, despite being
redundant and needlessly complicated. Increasingly, fax capacity
has been transferred online, often via office suites. In keeping
with this norm, OpenOffice.org offers everything you need to fax
from within it, but you do need to do some configuration both
inside and outside OpenOffice.org before you can use the office
suite for faxing.
"You can use a stand-alone fax machine with GNU/Linux, but you
quickly run into the problem that it probably connects through the
modem--and the vast majority of built-in modems these days tend to
be Winmodems, so-called because they required a running copy of
Windows to use..."