AT&T SYSTEM 25 User Manual page 99

special ringback
tone
speed dialing
start
station message
waiting
switchhook
system
administrator
test
transfer
trunk
voice terminal
one long tone followed by one short, dull
tone indicating that the person you dialed
has Call Waiting.
feature that allows you to place a call or
enter an account code by dialing " #" and
a 2- or 3-digit code. The 3-digit System
Speed Dialing codes are assigned by the
System Administrator and can be used at all
voice terminals. Individual voice terminals
may be assigned 2-digit Personal Speed
Dialing codes, which you can program.
feature that initiates the extension of a call
to a desired PDC.
feature that allows two people in the system
to turn on and off a light at the other
person's voice terminal to notify him or her
of a message.
button depressed by the handset when the
voice terminal is not in use.
person responsible for assigning features
and overseeing System 25 operation. (The
person to talk to if questions or problems
arise.)
feature that allows you to test the lights and
ringer on your SLAC and the lights on your
Selector Console.
feature that allows you to connect the
person you are talking with to another
person and drop out of the conversation.
a telecommunications channel between two
switching systems. (See also outside line.)
a single-line or multiline voice instrument (a
telephone).
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