AT&T Definity Callmaster II User And Installation Instructions Manual page 12

Adjunct Jack (on bottom of voice terminal)
compatible adjunct equipment, such as an S101A or S201A
Speakerphone, a 507A Adapter, or a 500A Headset Adapter, to your
voice terminal. The jack is labeled
For turning off the voice transmitter in the headset or
Mute Button
handset so the other person cannot hear you.
Volume Control Button
handset) when you are using the headset (or the handset) and a call is in
progress, or for adjusting the volume of the tone ringer when you are not
using the headset (or handset), and any time the voice terminal is
ringing. You can also use the volume control to change ringer volume
while you are selecting a personalized ring.
The standard 12-button pad for dialing phone numbers and
Dial Pad
accessing features. The letters, ''Q'' and ''Z,'' have been added to the
appropriate dial pad keys for directory access, and the ''5'' button on
your dial pad has raised bars for visually-impaired users.
Select Button
1) Used with
2) Used with
among eight available patterns.
For adjusting the volume of the headset (or
Can be used in two different ways:
Drop
to initiate a self-test of your voice terminal;
Test
Conference
to select your own personalized ring from
Ring
This jack is used to connect
.
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