AT&T E5654B - Manual (Page 44)

2
Appendix
Alert tones & indicator lights
Two short beeps
Press VOLUME keys while the volume levels are
already at limits.
Indicator lights
IN USE
On when handset or base is in use.
Flashes when another phone is in
use on the same line, when ringing,
or answering system is answering an
incoming call.
CHARGING
On when handset is positioned so its
battery can charge.
ANSWER ON/OFF
On when answering system is activated and
ready to receive calls.
SPEAKER
On when speakerphone is in use.
Handset alert tones
Two beeps Out of range during off-hook.
Four short beeps Low battery warning.
Confirmation tone Programming command completed successfully.
MUTE
On when base microphone is muted.
One beep every 10
seconds Message Alert.
A series of beeps
Press VOLUME keys while the volume levels are
already at limits.
Base alert tones
Confirmation tone Programming command completed successfully.