Nortel Modular ICS 6.0, Manual

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258 / Glossary
Modular ICS 6.0 System Coordinator Guide P0992640 03
Host system signaling: (Also
referred to as end-to-end signaling.)
System telephones can access a remote
system or dial a number on an alternate
carrier by means of host feature
activation, such as Link, Pause and Run/
Stop.
Hospitality
The Hospitality features
allow business which use hospitality
telephones, or room-based telephones,
to control access, alarms, and
maintenance duties through the
telephones.
Hotline: This feature automatically
calls a pre-assigned number when the
telephone receiver is lifted or the
Handsfree/Mute button is pressed. A
Hotline number can be an internal or
external number. Hotline is assigned
under
Capabilities
in
Terminals&Sets
programming.
Hunt group:
The hunt groups feature
allows a group of sets to be called by a
single directory number ensuring that
calls are easily routed to the appropriate
group.
I
I/C:
An abbreviation of intercom.
ICS (integrated communication
system):
The central hardware
component in the Norstar system. The
ICS has its own processor and memory,
and provides a physical point of
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.
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.