4000 - User Guide

If you need some help, call us on 0800 145 6789* or go to bt.com/producthelp
20
Base
Find Phone
Press to ring all registered handsets,
helpful for finding a missing handset,
see page 25.
Also used during the registration
process, see page 50.
ChargingPower / In use
Phone
Power In use light
On when there is
power to the base.
Flashes when the line
is in use or registration is
taking place.
Red charging light
Battery charging light.
On when the handset is
in the base charging.
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