The ability to send a fax to multiple recipients at the same time, which makes it easy to send junk faxes to many people. See junk faxes.
"broadcast fax." YourDictionary, n.d. Web. 18 August 2018. <http://www.yourdictionary.com/broadcast-fax>.
broadcast fax. (n.d.). Retrieved August 18th, 2018, from http://www.yourdictionary.com/broadcast-fax