VTech DS6673-6C - T; Handset and Telephone Base Indicators; Handset Lights; Telephone Base Lights

Appendix
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Handset and telephone base indicators
Handset lights
On when the handset speakerphone is in use.
CHARGE
On when the handset is charging in the telephone base or
handset charger.
Telephone base lights
IN USE
On when the telephone line is in use.
On when the answering system is answering a call.
On when you are registering a handset.
Flashes quickly when there is an incoming call.
Flashes when another telephone sharing the same line is in use.
Flashes when you are deregistering all handsets.
CELL 1/
CELL 2
On when a Bluetooth device is connected to the base.
Blinks when the telephone base is in discoverable mode.
ANS ON
On when the answering system is turned on.