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MERLIN LEGEND Communications System Release 6.0
System Programming
555-660-111
Issue 1
February 1998
Glossary
Page GL-19
modem Device that converts digital data signals to analog signals
for transmission over a telephone line, and analog signals
received on a telephone line to digital signals.
modem data
station
A type of data station that includes a modem as its DCE. It
may also include an MLX telephone for simultaneous voice
and data (MLX voice and modem data station), an analog
multiline telephone (analog voice and modem data
station), or a single-line telephone for dialing only (modem
data-only station). These data stations connect respectively
to MLX, analog, or tip/ring extension jack modules. They
provide analog transmission of data.
modem pool Pair, or group of pairs, of
modems
and data modules with
interconnected RS-232 interfaces that converts digital
signals to analog, or analog signals to digital, thereby
allowing users with
ISDN terminal adapter
data stations
to
communicate with users who have analog
modem data
stations
.
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.