AT&T 1477/1177 - Manual (Page 17)

15
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
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