Lucent Technologies MERLIN LEGEND Release 5.0 System Programming Manual page 926

MERLIN LEGEND Communications System Release 5.0
System Programming 555-650-111
Glossary
Multi-Function
Module
multiline
telephone
multiplexing
Music On Hold
N
network
network interface
NI-1 BRI
O
off-hook
off-premises
telephone
on-hook
OPT
OPX
See MFM .
An analog or digital (MLX) telephone that provides multiple
line buttons for making or receiving calls or programming
features.
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.
Customer-provided music source or Magic on Hold
connected to the system through a loop-start jack.
Configuration of communications devices and software
connected for information interchange.
Hardware, software, or both that links two systems in an
interconnected group of systems, for example, between the
local telephone company and a PBX.
(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.
Telephone is said to be off-hook when the user has lifted
the handset, pressed the Speakerphone button to turn on
the speakerphone, or used a headset to connect to the
communications system or the telephone network.
See OPT .
Telephone is said to be on-hook when the handset is hung
up, the speakerphone is turned off, and the user is not
using a headset to connect to the communications system
or the telephone network.
(off-premises telephone) Single-line telephone or other
tip/ring device connected to the system via a 008 OPT
module in the control unit. Appears as an inside extension
to the system, but may be physically located away from the
system.
(off-premises extension)
Issue 1
June 1997
Page GL--13