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MERLIN LEGEND Communications System Release 6.1
Network Reference
555-661-150
Issue 1
August 1998
Glossary
Page GL-17
M
line/trunk jack Physical interface on a module in the control unit for
connecting an outside line/trunk to the communications
system. Also called “trunk jack.”
line/trunk and
extension module
Module on which the jacks for connecting central office
lines/trunks and/or the jacks for connecting the extensions
are located.
local dial plan 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
.
local host
computer access
A method for connecting an extension jack to an on-site
computer for data-only calls through a
modem
or
ISDN
terminal adapter
.
local loop The two-way connection between a customer’s premises
and the central office (CO).
local user In a
private network
, a person whose extension is
connected to the local control unit.
logical ID Unique numeric identifier for each
extension
and
line/trunk
jack
in the system control unit.
loop-start line 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.
Lucent
Technologies
Attendant
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.
Magic on Hold A Lucent Technologies Music On Hold enhancement that
promotes a company’s products or services.
Mbps (megabits per second)
Megacom The AT&T tariffed digital
WATS
offering for outward calling.
Megacom 800 The AT&T tariffed digital 800 offering for inward calling.
memory card Storage medium, similar in function to a floppy disk, that
allows information to be added to or obtained from the
communications system through the PCMCIA interface
slot on the processor module.
MERLIN Identifier Adjunct that allows users to receive, store, and use
information provided by Caller ID.
MERLIN and
MERLIN LEGEND
MAIL Voice
Messaging
Systems
Applications that provide automated attendant, call
answering, and voice-mail services on the system.