Appendix

Alert tones and indicator lights

Alert tones

“Beep-Beep-Beep-Beep-Beep”

Handset battery is low. Place handset in

(5 quick beeps)

base to charge the battery.

 

 

Confirmation tone

Handset registration or programming

(“Happy” tone)

command successfully completed.

Out of Range tone (multiple beeps at 1-second intervals)

The handset is out of range. Move closer to the base.

“Beeeeeeeeep”

Error tone (current operation has been

(1 long beep)

unsuccessful; try again).

 

 

Indicator lights

 

 

SPEAKER

 

 

On when speakerphone

 

 

is in use.

ON/OFF

MUTE

(Flashes when call

On when answering

On when base

system is on.

microphone is muted.

is on hold).

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AT&T E5900B user manual Alert tones and indicator lights, Indicator lights