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MERLIN LEGEND Communications System Release 6.0
System Manager’s Guide
555-660-118
Issue 1
February 1998
Glossary
Page GL-19
N
module Circuit pack in the control unit that provides the physical
jacks for connection of telephones and/or outside
lines/trunks to the communications system. In the name of
a module, the first digit indicates the number of
line/trunk
jacks
it contains; the last digit indicates the number of
extension jacks
it contains. If no letters appear after the
number, a line/trunk module provides
loop-start lines
or an
extension jack module provides analog or
tip/ring
jacks. For
example, a 408 GS/LS MLX module contains four line/trunk
jacks and eight digital (MLX) extension jacks, and provides
either
loop-start
(LS) or
ground-start
(GS)
trunks.
monitored
extension
Extension for which one or more CTI applications is
receiving call information. The CTI application does not
have to be directly attached to the equipment at the
extension in order to monitor calls. The call information may
appear on the PC screen of another extension that has
been programmed to receive it. See also
CTI link
and
unmonitored extension.
Multi-Function
Module
See
MFM
.
multiline
telephone
An analog or digital (MLX) telephone that provides multiple
line buttons for making or receiving calls or programming
features.
multiplexing The division of a transmission channel into two or more
independent channels, either by splitting the frequency
band into a number of narrower bands or by dividing the
channel into successive time slots.
Music On Hold Customer-provided music source or Magic on Hold
connected to the system through a
loop-start
jack.
network Configuration of communications devices and software
connected for information interchange.
network interface Hardware, software, or both that links two systems in an
interconnected group of systems, for example, between the
local telephone company and a PBX.
NI-1 BRI (National Integrated Services Digital Network 1 Basic Rate
Interface) A type of digital facility that carries the equivalent
of three lines. Two are called
B-channels
and provide voice
and data communications services. A third
D-channel
controls signaling and maintains operations on the
B-channels.
non-local user In a
private network
, a user who is connected to another
system in the network and not to the local system.
non-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 non-local
intersystem calls via UDP
.