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Glossary
Issue 2.0 December 1995 GL-11
DNIS
See
dialed number identification service
.
DSP
See
digital signal processor
.
DSU
See
data service unit
.
DTE
See
data terminal equipment
.
DTMF
See
dual tone multifrequency
.
dual in-line package (DIP) switch
A very small switch, usually attached to a printed circuit card, in which there are only two settings:
on or off (or 0 or 1). DIP switches are used to configure the card in a semipermanent way.
dual language greetings
The capability of Intuity AUDIX subscribers to create personal greetings in two different
languages — one in a primary language and one in a secondary language. This capability exists
when the multilingual feature is turned on and the prompts for subscriber mailboxes can be in
either of the two languages.
dual tone multifrequency
A way of signaling consisting of a pushbutton or touch tone dial that sends out a sound which
consists of two discrete tones picked up and interpreted by telephone switches.
E
electrostatic discharge (ESD)
Discharge of a static charge on a surface or body through a conductive path to ground. An ESD
can be damaging to integrated circuits.
enabled/disabled
The state of a hardware device that indicates whether the AT&T Intuity system can use it. Devices
must be equipped before they can be enabled (made active). See also
equipped/unequipped
.
endpoint
See
fax endpoint
.
enhanced call transfer
An Intuity AUDIX feature that allows compatible switches to transmit messages digitally over the
BX.25 (data) link. This feature is used for quick call transfers and requires a fully integrated digital
switch. Callers can only transfer to other extensions in the switch dial plan.
enhanced serial data interface
A software- and hardware-controlled method used to store data on magnetic peripherals.
equipped/unequipped
The state of a networking channel that indicates whether AT&T Intuity software has recognized it.
Devices must be equipped before they can be enabled (made active). See also
enabled/
disabled
.