Nortel Networks P0992639 01 manual Intercom keys See Intercom, Line Pool

124 / Glossary

Modules (TM) that supports more	Intercom keys: See Intercom
external lines, or Station Modules	button.
(SM) that support more Norstar	K
telephones.
incominglinegroup(ILG): A group
	Key Service Unit (KSU): Please
of lines used for incoming calls.	see Integrated Communication
Incoming line groups provide	System (ICS).
telephone access to several
incoming lines without taking up	L
many line buttons. A line is assigned
to be part of an incoming line group	Line Pool:
in Installer programming.		fl›
Installer password: A one-to six-	A group of lines used for making
	external calls. Line pools provide an
digit password that prevents
	efficient way of giving a telephone
unauthorized access to Installer-
	access to external lines without
oriented programming. The Installer
	taking up many line buttons. A line is
password can be assigned and
	assigned to be part of a line pool in
changed in Passwords
	an Installer programming session.
programming.
Integrated Services Digital	M
Network (ISDN): A digital
telephone service that allows for a	M7310 telephone: A telephone that
combination voice and data	has a two-line display, three display
connection over a single, high-	buttons, 10 programmable memory
speed connection. ISDN service can	buttons with indicators, and 12 dual
operate over the same copper	memory programmable buttons
twisted-pair telephone line as analog	without indicators. An M7310 can be
telephone service.	equipped with a Busy Lamp Field.
Intercom button: A button that	M7324telephone: A telephone with
provides access to internal lines	a￿two-line display, three display
used for calls within a Norstar	buttons, and 24 programmable
system and access to external lines	memory buttons with indicators. An
through a line pool or external code.	M7324 telephone can be equipped
A telephone may be assigned zero	with a CAP module.
to eight Intercom buttons. This is	Module: A component of the
done during an Installer
	Norstar key system. Includes the
programming session.

Modular ICS Companion Installer Guide P0992639 01