Lucent Technologies MERLIN LEGEND Release 6.1 System Manager's Manual page 444

MERLIN LEGEND Communications System Release 6.1
System Manager's Guide 555-661-118
Glossary
LED
line
line and trunk
assignment
line coding
line compensation
line/trunk
line/trunk jack
line/trunk and
extension module
local dial plan
local host
computer access
local loop
local user
logical ID
loop-start line
Lucent
Technologies
Attendant
(light-emitting diode) Semiconductor device that produces
light when voltage is applied; light on a telephone.
Connection between extensions within the
communications system; often, however, used
synonymously with trunk .
Assignment of lines and trunks connected to the system
control unit to specific buttons on each telephone.
Pattern that data assumes as it is transmitted over a
communications channel.
Adjustment for the amount of cable loss in decibels (dB),
based on the length of cable between a 100D module and
a channel service unit ( CSU ) or other far-end connection
point.
Refers to inside system lines and outside lines/trunks in
general terms. See also line and trunk .
Physical interface on a module in the control unit for
connecting an outside line/trunk to the communications
system. Also called "trunk jack."
Module on which the jacks for connecting central office
lines/trunks and/or the jacks for connecting the extensions
are located.
In a system that is part of a private network , a list of
extension ranges that the local system references in order
to route local intersystem calls via UDP .
A method for connecting an extension jack to an on-site
computer for data-only calls through a modem or ISDN
terminal adapter .
The two-way connection between a customer's premises
and the central office (CO).
In a private network , a person whose extension is
connected to the local control unit.
Unique numeric identifier for each extension and line/trunk
jack in the system control unit.
Line on which a closure between the tip and ring leads is
used to originate or answer a call. High-voltage 20-Hz AC
ringing current from the central office signals an incoming
call.
Application with equipment that connects to one or more
tip/ring (T/R) extension jacks and automatically answers
incoming calls with a recorded announcement; directs calls
in response to touch tones.
Issue 1
August 1998
Page GL-17