AT&T 1177 User Manual

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Telephone Operation
Options while on calls
Mute (Base Only)
During a speakerphone call, press 
MUTE
to silence the
microphone. Your caller will not be able to hear you
until you press 
MUTE
again to resume speaking.
To adjust listening volume
During a call you can press 
V
to decrease or 
^
to
increase the listening volume. 
If sound is unclear (Handset Only)
If noise or static disrupts a call, press 
@
PROG/CHAN
to
scan for a clearer radio channel between handset and base.
Temporary tone dialing
If you have dial pulse (rotary) service, you can switch to
touch tone dialing during a call by pressing 
*
. This
can be useful if you need to send tone signals for access
to answering systems or long-distance services.
VOLUME
91-005677-041-000.ATT1477.qxd  2/13/1950  7:21 PM  Page 15