Muratec F-65 Operating Instructions Manual page 102

Just in case ...
identifying yourself, "Hello, this is [your name]." When you press
machine responds to these signals using other special tones (to us humans, they
sound a bit like screeches) which are its way of responding to the other machine's
"greeting." This communication is called handshaking.
The way fax machines work is regulated closely by international standards applied
by the International Telecommunications Union (
Nations. These standards ensure the compatibility of your fax machine with mil-
lions of other fax machines worldwide.
3.14
, your fax
START
), an agency of the United
ITU