VTech LS6476-4 Manual - Manual (Page 76)

Appendix
72
Deregister handsets/headsets
If you want to replace a handset or headset, or reassign the designated handset
number of a registered handset, you must deregister all handsets and headsets
that are registered to the telephone base. Then register each handset and
headset individually.
To make deregistration easier, read all of the instructions on this page before
you begin.
Make sure that all handsets are out of the telephone base and handset chargers
before you begin deregistration.
To deregister all handsets and headsets:
Press and hold /FIND HANDSET on the telephone base for about 10 seconds
until the IN USE light on the telephone base turns on and starts flashing.
Press and release /FIND HANDSET again. You must press /FIND HANDSET
while the IN USE light is still flashing. The IN USE light flashes for approximately
seven seconds.
The deregistration process takes about 10 seconds to complete. All handsets
show Put HS on BASE to register and all headset lights flash slowly and
alternately in red and blue.
If the deregistration process is successful, you hear “Not registered” through the
headset earpiece when you press on the headset. If deregistration fails, you
may need to reset the telephone and try again.
To reset:
Pick up the registered handset. Press /FLASH and then press
OFF
/CANCEL .
Place the handset in the telephone base.
Pick up the registered headset and press the
RESET inset button with a paper
clip or similar object.
-OR-
Unplug the power from the telephone base, then plug it back in.
You cannot deregister all handsets and headsets if any other system
handset or headset is in use.
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