Filter
Top Products
Glossary 211
Directory Number (DN):
A
unique number that is assigned
to each telephone or data
terminal by your Customer
Service representative. The DN,
also referred to as an internal
number, is often used to identify
a telephone when settings are
assigned during programming.
Disconnect Supervision:
A
setting which enables the
system to detect if an
external caller hangs up. Once
an external caller hangs up, the
system can disconnect
its line. Disconnect Supervision
is enabled by your Customer
Service representative. If
Disconnect Supervision is
unavailable or is not enabled
the following features are not
available: Line Redirection of an
external call to an external
number, Transfer between two
external calls and Unsupervised
Conference between two
external calls.
Display:
A liquid crystal display
(LCD) on the telephone
that guides you through feature
operation and programming.
PO84262701
Display button:
One of three
buttons located directly beneath
the display on and
M7324 Telephones. 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 line of the two-line
display, directly above the
corresponding display button.
Display buttons are represented
in this Guide as underlined
capitals, e.g.
Display digits:
A sub-heading
in Administration programming
that allows you to set whether
an assigned name or the actual
number is displayed when
someone uses a System Speed
Dial code.
DN: See
Directory Number.
DRT delay:
The number of
rings before a Delayed Ring
Transfer occurs. This is
assigned by your Customer
Service representative.
DRT to Prime:
See Delayed
Ring Transfer to Prime.
E
Exceptions:
A component of a
Dialing filter. Exceptions are
numbers you can dial even if
they are forbidden by a more
general restriction. See
Restrictions.
DR5.1 Owner’s Handbook