AT&T 1855 - Manual (Page 11)

9
Telephone Operation
Options while on calls
To adjust listening volume
Press the
VOLUME
buttons to adjust listening volume.
There are eight volume levels for the speakerphone,
and four levels for the handset. Each button press
raises or lowers listening volume by one level.
Call waiting
If you have Call Waiting service, you will hear a beep if
someone calls 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
at any time to switch
back and forth between calls.
Mute
Press
MUTE
to silence the microphone during a call.
You will be able to hear, but your caller will not be able
to hear you until you press
MUTE
again to resume your
conversation.
EMO
ANNC
Light is on when phone is muted
4
MSG#
Volume level
ATT-1855CIB-d05.qxp 4/8/2005 5:37 PM Page 9