AT&T SYSTEM 25 Manual page 10

Single-Line Voice Terminals
The Switchhook (Recall)
The switchhook is used in single-line voice terminal procedures. The switchhook is the
button(s) pressed down by the handset when not in use. When the user is instructed to
press the switchhook, the switchhook must be pressed down firmly as far as it will go for
approximately 1/2 second and then released. If the switchhook is pressed and released too
quickly, the signal will not work. If the switchhook is held down too long, the call will be
disconnected.
NOTE: If a single-line voice terminal has a
instead of the switchhook. It does not matter how long this button is held down,
as timing is automatically controlled by the terminal.
To hang up and place another call right away, the switchhook should be held down for more
than two seconds.
[RECALL]
Multiline Voice Terminals and Attendant Consoles
The following information describes special features of multiline voice terminals and
attendant consoles. Attendant consoles have some additional features, exclusive to them,
described later in this section.
Buttons
Buttons, like features, are either fixed or assignable. Fixed buttons, such as
specific permanent functions. Assignable buttons can have features assigned to them, usually
by the System Administrator. Each type of button is represented in a special way in this
manual, as shown below.
A fourth type of button can be found on the display unit, and is represented
NOTE:
in the following manner: [ Set ] .
1-6 Introduction
should not be used to hang up and place another call.
TYPE
dial pad buttons
dark background buttons with
permanent labels (fixed)
white background buttons with
changeable labels (assignable)
button, the user can press it
[RECALL]
SHOWN AS:
[ 7 ]
[TRANSFER]
[REP DIAL]
have
[TRANSFER]