Islo by to pouzitim najakeho faxoveho klienta. Napr.:
http://www.fax.cz/?gclid=CIni6Ka92Z8CFVeEzAod4R0sGQ
V praci mame instalovany: FaxChange client driver. Fax mi pride ako email do Outlooku, ale ako to funguje presne neviem, kedze to robilo IT...
Nieco o tom som nasiel cez strycka googla:
http://www.slipstick.com/addins/services/winxpfax.htm