AT&T MERLIN LEGEND Release 3.1 Maintenance And Troubleshooting Manual page 402

Glossary
ground-start trunk
Group IV (G4) fax
machine
H
Hands Free Answer
on Intercom
hands-free unit
headset
HFAI
HFU
Home screen
host
Trunk on which the communications system, after verifying
that the trunk is idle (no ground on tip lead), transmits a
request for service (puts ground on ring lead) to the
telephone company central office ( CO ).
A fax unit, offering 400 by 100 dots per inch (DPI) in fine
mode, that can operate at any speed for communication
with a Group III (G3) fax machine or another Group IV (G4)
fax machine.
See HFAI .
See HFU .
Lightweight earpiece, microphone, and adapter used for
hands-free telephone operation.
(Hands Free Answer on Intercom) Feature that allows a
user to answer a voice-announced call.
(Hands-Free Unit) Unit for older analog multiline
telephones that allows users to make and receive calls on
the speakerphone without using the handset.
Display normally shown on an MLX display telephone;
shows time, date, and call information, and shows when
some features are in use.
Telephone company or other switch providing features
and services to the system users, usually when the system
is operating in Behind Switch mode .
Maintenance and Troubleshooting
GL–17