VTech DS6472-6 Manual - Manual (Page 105)

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Appendix
Handset and telephone base indicators
Handset lights
On when the handset speakerphone is in use.
/CELL
Flashes quickly when there is an incoming cell call.
Flashes slowly when the cell line is on hold.
/HOME/FLASH
Flashes quickly when there is an incoming home call.
Flashes slowly when the home line is on hold.
CHARGE On when the handset is charging in the telephone base
or charger.
Telephone base lights
/ANS ON/OFF On when the answering system is turned on.
D1/D2 On when a Bluetooth device is connected to the base.
Flashes alternately while pairing a Bluetooth device.
Flashes quickly when there is an incoming cell call.
IN USE On when the telephone line is in use or on hold.
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.