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Terminology
The following terms are used in this chapter. In addition, you may wish to review
the “Terminology” section of “About This Guide,” which defines basic terms
used throughout this guide, or the Glossary, which defines all terms.
Auto Dial
button
Auxiliary
equipment
Call coverage
Doorphone
Equipment
feature
Equipment
feature button
Hotline phone
Premises
equipment
A programmable telephone button that lets you dial a series
of digits simply by pressing that button. An Auto Dial button
can be used to store a Centrex feature code or a telephone
number so that it can be dialed with one touch. See also
Equipment feature button and Programmable button.
Telecommunications equipment (other than MLS- and
MLC-model telephones) that can be connected to the
equipment controller. Auxiliary equipment includes
industry-standard devices that can connect directly to the
public telephone network (such as standard phones or fax
machines) as well as devices that require the interface
provided by the equipment controller (such as a loudspeaker
paging system).
An arrangement that lets a receptionist or a person at another
extension answer a call when the dialed extension is busy or
not answered. Call coverage may be provided centrally by a
receptionist (using default equipment settings), locally by a
person at another extension (requiring secondary line
assignments), or using Centrex coverage services (such as
call forwarding or voice mail). In addition, answering
machines may be installed at key extensions to take
messages when a person is not available to take calls.
An AT&T proprietary phone that can be wall mounted outside
your office or in a lobby, to allow visitors to alert up to five
system extensions by pressing a button. The doorphone
includes a speaker and microphone, to allow two-way
conversation between the doorphone and the phone that
answers.
A feature provided by your equipment controller (as opposed
to a service provided by Centrex).
A programmable telephone button on an MLS- or MLC-model
telephone that enables you to access an equipment feature
simply by pressing that button. See also Auto Dial button
and Programmable button.
A standard phone that rings another extension automatically
when the handset is lifted.
The AT&T equipment controller and MLS- and MLC-model
telephones that you purchased as part of your system, plus
all other telecommunications devices that are connected to
your equipment controller. For purposes of this guide,
premises equipment does not include any equipment that
connects directly to Centrex lines without going through the
equipment controller.
4-2
Customizing Your System