Nortel Modular ICS 7.1, Инструкция по установке

Страница: 645 / 700

Glossary / 645
N0130943 02 Modular ICS 7.1 Installer Guide
Direct Inward Dial trunk:
Trunks
that allow direct inward dialing from the
public network to the Norstar system.
Direct inward system access
(DISA):
The feature that allows remote
users to dial directly into the Norstar
system and use Norstar features. Callers
will hear stuttered dial tone and will be
required to enter a Class of Service
password to gain access to the system.
See Remote Access.
directed pickup: See Call Pickup
Directed.
Directory number (DN): A unique
number that is automatically assigned to
each telephone or data terminal. The
DN, also referred to as an internal
number, is often used to identify a
telephone when settings are assigned
during programming.
Default DN assignments start at 221.
DISA DN:
The received number
assigned to the Norstar direct inward
system access facility. If a caller dials a
number that is assigned to the
DISA DN, the caller hears stuttered dial
tone and must enter a Class of Service
password. Once the password is
accepted, the caller hears system dial
tone and can use Remote Access
features. See Remote Access.
Disconnect Supervision: A setting
that enables the Norstar system to detect
if an external caller hangs up. Once an
external caller hangs up, the Norstar
system can disconnect its line.
Disconnect Supervision
is enabled
under
Trunk/Line
data in
Lines
programming.
display:
A liquid crystal display
(LCD) on the telephone that guides you
through feature operation and
programming.
display button:
Norstar system two-
line display telephones are each
equipped with three buttons located
directly beneath the display. During
feature operation or programming, some
or all of these buttons may be used to
provide further options. If an option is
available, it is shown in the bottom row
of the two-row display, directly above
the corresponding display button.
Display buttons are represented in this
manual as underlined capital, such as
OK
.
Distinctive ring: Lines, telephones,
and hunt group DNs can be configured
with a distinctive ring that also
determines the priority of a call.
DN:
See Directory number.
Do Not Disturb:
≤°fi
A feature that stops calls from ringing at
your telephone. Only Priority Calls will
ring at your telephone. A line button will
flash when you receive a call, but the
call will not ring
.
DTMF:
See Dual tone multifrequency.
dual tone multifrequency:
Two
distinct telephone signaling tones used
for dialing.
DTI: See Digital Trunk Interface.
E
E&M/DISA Trunk Cartridge:
The
Trunk Cartridge that allows you to
connect E&M trunks to the Norstar
system. The E&M Trunk Cartridge also
allows DISA access to the system by
providing DTMF receivers for auto-
answer trunks.
Emergency 911 dialing: The
capability to access a public emergency
response system by dialing the digits
9-1-1. State and local requirements for
support of Emergency 911 Dialing
service by Customer Premises
Equipment vary. Consult your local