AT&T SB67138 - Manual (Page 45)

Lighted display
NEW CALL
indicator
On when there
are new or missed
calls in the call log.
( Messages) indicator
Flashes when there are new or
missed messages in the general
mailbox.
LINE 1-LINE 4 indicator
On when a telephone line
is in use.
Flashes slowly when a
telephone line is on hold.
Flashes rapidly when there
is an incoming call.
ANSWER ON indicator
On when the general mailbox is
on and ready to receive calls.
SPEAKER indicator
On when the speakerphone is on.
MUTE indicator
Flashes slowly when the
corded handset microphone
or speakerphone is muted.
DND indicator
On when the do not disturb function is on.
HEADSET indicator
On when the corded
headset is in use.
Indicator lights:
Getting started
Screen icons, indicator tones and lights
39