Norstar DR5, Installer'S Manual

Page: 502 / 534

220 Glossary
Control telephone:
A
telephone that can place the
lines for which it has
responsibility in or out of a
Service Mode. A telephone is
programmed as a Control
telephone and has lines
assigned to it in Administration
programming.
COS: See Class of Service.
Cursor:
A short horizontal line
that appears on the
telephone display to indicate
that characters can be entered
using the dial pad.
D
Data Communications
Interface (DCI):
A
device that lets you attach an
RS-232 data device to your
system.
Data terminal:
A device, such
as a modem, that can be used
to transfer data instead of sound
over a telephone network. You
cannot use
programming to set up such
devices. See the documentation
that accompanies the device.
Date:
See Show Time or Time
and Date.
Defaults:
The settings for all
features when the
system is first installed. Settings
are changed from their defaults
Administration programming
and by your Customer Service
representative. In this manual,
default settings are shown in
bold
text.
Delayed Ring Transfer (DRT)
to Prime:
A feature that
transfers an unanswered call on
an external line to the Prime
Telephone associated with that
line after a specified number of
rings. This feature is activated
by your Customer Service
representative.
Dial mode:
The dialing mode of
a line can be either Tone or
pulse. Pulse is traditionally used
by rotary dial telephones. Tone
is also referred to as dual-tone
multi frequency (DTMF) tones.
Dial mode can be programmed
by your Customer Service
representative.
Dialing filter:
A feature that
prevents certain telephone
numbers from being dialed
through a combination of
restrictions and exceptions.
Dialing filters can be applied to
lines (line filters, remote filters),
to telephones (set filters), to
specific lines on a telephone
(line/set filters), and to Class of
Service passwords (user filters,
remote filters). The
Modular system can handle up
to 100 dialing filters.
Direct Inward System Access
(DISA):
A feature that lets
remote users dial directly into
the system and use
features. Callers hear
stuttered dial tone and are
required to enter a Class of
Service password to gain
access to the system. See
Remote Access.
Modular System Coordinator Guide