AT&T 1856 Speakerphone - Manual (Page 14)

Telephone operation
Options while on calls
To adjust listening volume
While on calls, press VOLUME to adjust the lis-
tening volume.
There are eight volume levels for the speakerphone,
and four levels for the handset. Press
or once to
increase or lower the listening volume by one level.
FLASH
If you subscribe to a call waiting service with
your local telephone service provider and the
CID-CALL WAIT feature is on, you will hear a
beep and the screen will display call information
for the incoming call while you are already on a
call. Press FLASH to put your current call on hold
and take the new call. You can press FLASH any-
time to switch back and forth between calls.
MUTE
You can press MUTE to silence the microphone
during a conversation. You will be able to hear the
person at the other end, but that person cannot
hear you until you press MUTE again to resume
conversation.
4
MSG#
5550100
volume level
Light is on when the
telephone is muted
11