MERLIN LEGEND Communications System Release 7.0
System Programming
555-670-111
Issue 1
April 1999
Glossary
GL-15
H
I
Group IV (G4) Fax
Machine
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.
Group
Videoconferencing
System
System application that allows face-to-face, simultaneous
video and voice communications between groups and
requires high-speed data transmission facilities. See also
Desktop Videoconferencing System
.
Hands-Free
Answer on
Intercom
See
.
Hands-Free Unit
See
Headset
Lightweight earpiece and microphone used for hands-free
telephone operation.
HFAI
Hands-Free Answer on Intercom
. Feature that allows a
user to answer a voice-announced call.
HFU
Hands-Free Unit
. Unit for analog multiline telephones that
allows users to make and receive calls on the
speakerphone without using the handset.
Home Screen
Display normally shown on an MLX display telephone;
shows time, date, and call information, as well as when
some features are in use.
Host
Telephone company or other switch providing features and
services to the system users, usually when the system is
operating in
Behind Switch mode
.
Hub System
In a
private network
that is arranged in a
star configuration
,
the communications system through which all calls across
the network pass.
Hybrid/PBX Mode
One of three modes of system operation in which the
system uses line/trunk
pools
and
ARS
in addition to
personal lines
. Provides a single interface (SA buttons) to
users for both internal and external calling. See also
.
ICLID
Incoming Call Line Identification
. See
.
ICOM Buttons
Intercom Buttons
. Telephone buttons that provide access
to inside system lines for calling other extensions or
receiving calls from them.
