AT&T MERLIN LEGEND Release 3.1, Руководство по системному программированию

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Glossary
System Programming
GL–13
FX (Foreign exchange) Central office ( CO ) other than the one
that is providing local access to the public telephone
network.
G
General-Purpose
Adapter
See
GPA
.
glare
Condition that occurs when a user tries to call out on a
loop-start
trunk at the same time that another call arrives on
the same trunk.
GPA
(General-Purpose Adapter) Device that connects an
analog multiline telephone to optional equipment such as
an answering machine or a fax machine.
ground-start trunk
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
).
Group IV (G4) fax
machine
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.
H
Hands Free Answer
on Intercom See HFAI .
hands-free unit See HFU .
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.