Nortel Modular ICS 7.1, Инструкция по установке

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648 / Glossary
Modular ICS 7.1 Installer Guide N0130943 02
connection for the various types of
devices, telephones, and expansion
modules used in Norstar.
The ICS can function on its own as a
basic system (with 32 system telephones
and up to 48 external lines), or with the
addition of Trunk Modules (TM) that
supports more external lines, or Station
Modules (SM) that support more system
telephones.
Installer password: A one-to six-
digit password that prevents
unauthorized access to programming.
The Installer password can be assigned
and changed in
Passwords
programming.
Integrated Services Digital
Network (ISDN):
A digital telephone
service that allows for a combination
voice and data connection over a single,
high-speed connection. ISDN service
can operate over the same copper
twisted-pair telephone line as analog
telephone service.
intercom button:
A button that
provides access to internal lines used for
calls within a Norstar system and access
to external lines through a line pool or
external code. A telephone may be
assigned zero to eight Intercom buttons.
This is done under
Line access
in
Terminals&Sets
programming.
intercom keys: See Intercom button.
internal line:
A line on your telephone
dedicated to making calls to destinations
inside your Norstar system. An internal
line may still connect you with an
external caller if you use it to access a
line pool or to pick up a call using
Norstar call handling features such as
Call Park or Call Pickup Directed.
internal number:
A number, also
referred to as a Directory Number or
DN, that identifies a Norstar telephone
or device.
internal user:
Someone using a
system telephone within a Norstar
system.
ISDN:
See integrated services digital
network.
ISDN DN:
A directory number (DN)
used by ISDN terminal equipment
connected to the ICS. The system uses a
maximum of thirty ISDN DNs.
ISDN Call Connection Limitation
(ICCL)
This feature piggybacks on the
call initiation request and acts as a check
at transit PBX points to prevent
misconfigured routes or calls with errors
from blocking channels.
K
Key indicator module (KIM) This
hardware unit allows you to expand the
receive capability of a 7316E digital
phone. You can configure the resulting
CAP into an enhanced CAP (eCAP) to
support lines, multiple appearances of
target lines, and hunt group designators.
Key service unit (KSU):
See ICS.
L
Last Number Redial:
≤fi
A feature that allows you to redial the
last external number you dialed.
Fixed line:
A telecommunications line between two
service points leased from a
communications carrier for private use,
usually incurring a monthly service rate.
Fixed lines setting is used solely by data
modules.
Least cost routing:
See Routing
service.
line:
The complete path of a voice or
data connection between one telephone
(or other device) and another.