AT&T definity 7444 User Manual page 34

To prevent other party
from hearing you
Note: If the
Speakerphone feature
is not active, the Mute
feature turns off the
microphone associated
with the handset (not
the speakerphone).
To change from
speakerphone to
handset
To change from
handset to
speakerphone
To end a call
The display shows [ SPEAKER L >>> H ] (There are
8 possible volume settings. On the display, 1 arrow
is the lowest setting, and 8 arrows is the highest
setting)
Note: The Volume control does not affect an external
speakerphone attached to your telephone.
1
Press  Mute 
Red light goes on and other party cannot hear you
2 Press  Mute  again to resume talking to party
Red light goes off and other party can hear you again
1 Pickup handset and talk
Green light goes off next to
1 Press  Speaker-Reset Spkr 
Green light goes on next to
2 Hang up handset
1 Press
 Speaker-Reset Spkr 
Green light next to
 Speaker-Reset Spkr 
 Speaker-Reset Spkr 
again to hang up
 Speaker-Reset Spkr 
goes off
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