AT&T 874 - Manual (Page 14)

12
OPERATION
Prevents
interruptions
during a call
Activate custom-
calling services
Redial last
number called
Put a caller
on hold
Mute the
microphone
Activate
speakerphone
Adjust Ringer and
handset/speakerphone
volume
Line-in-use
lights
Redirect an
incoming call
to any other
874 phone
Automatically
redials a
number when
the line you’re
calling is busy
Displays the
elapsed call
time in minutes
and seconds