AT&T 1856 Speakerphone - Manual (Page 13)

Telephone operation
Telephone operation
Making and answering calls
To make a call, lift the handset or press SPEAKER,
then dial a number. Replace the handset or press
SPEAKER to hang up.
To answer a call, lift the handset, or press SPEAKER
to use the speakerphone.
Last number redial
The most recently dialed number is displayed
when you lift the handset or press SPEAKER.
Press REDIAL to dial it.
To adjust ringer volume
To adjust the ringer volume, press the VOLUME but-
ton while the telephone is not in use. Press or
once to increase or lower the ringer volume by one
level. You can turn the ringer off, or select one of the
seven volume levels.
REDIAL
0
MSG#
5550100
0 CALLS 0 NEW
4
MSG#
volume level
10