Appendix; Indicator Lights And Alert Tones; Indicator Lights; Alert Tones - AT&T ML17928 User Manual

Appendix

Indicator lights and alert tones

Indicator lights

Lighted display
LINE 1/LINE 2 indicator
On when the telephone
line is in use.
Flashes slowly when the
call is on hold.
Flashes rapidly when there
is an incoming call.
hEADSET indicator
On when the
headset is in use.

Alert tones

Confirmation tone
(3 ascending beeps)
Error tone
(2 quick beeps)
Four beeps
• The command has been completed successfully
• You press REDIAL when the redial list is empty.
• no headset is plugged into the telephone base when you press
hEADSET.
• The requested task cannot be completed due to missing
information or an input error.
• You press VoL+ or VoL- when the volume has already reached
its highest or lowest setting.
42
MUTE indicator
On when the corded
handset microphone,
speakerphone or
headset is muted.
SPEAKER indicator
On when the
speakerphone is on.
.