A fax machine is a device that is used to send documents electronically over a telephone network.
The transmissions it sends are called “faxes, ” and these can be between two fax machines,
or between a fax machine and computer or
online fax service that is equipped to send and receive faxes.
Today’s fax machine
Today’s fax machine is less frequently a stand-alone machine,
and more often part of a multifunction unit that also has printing, scanning, and copying features.
As well, many fax functions now happen through an online fax service or fax server –
internet-based systems that facilitate fax transmission but don’t need the end-user to maintain the hardware.