Appendix
126
Deregistering handsets
You may need to deregister your handsets if:
You have 12 registered handsets and need to replace a handset.
-OR-
You wish to change the designated handset number of your registered
handsets.
You must rst deregister ALL handsets, and then register each handset you
wish to use again, one at a time.
Please read carefully through all the instructions on this page before
beginning the deregistration process.
Deregister all handsets from the telephone base
In addition to the cordless handsets, this operation will also deregister all
cordless headsets and speakerphones registered to your telephone base.
1. Make sure that all handsets are out of the chargers before you begin
deregistration.
2. Press and hold /FIND HS on the telephone base
for about 10 seconds. The IN USE light turns on aer
about four seconds. Keep holding /FIND HS until
the screen shows Deregister all devices? and the
IN USE light begins to ash. Release /FIND HS.
3. Immediately press /FIND HS or MENU/SELECT
while the IN USE light is still ashing. (If the light stops ashing, start again
with Step 1.)
4. It takes up to 10 seconds to complete the deregistration process. Before
registering the handset again, wait for the cordless handset screen to
display To register HS, see manual..
5. To register the handset(s) to the telephone base again, follow the
registration instructions on the previous page.
Notes:
If the deregistration process fails, you may need to reset the system and try again. To reset, unplug the power from the
telephone base and plug it back in.
You cannot deregister the handsets if any other system handset is in use. Any call activity will cancel the deregistration
process.
Even if the battery is depleted, you can still deregister the handsets by following the steps mentioned above. After the
handset is charged for at least 10 minutes, the screen shows To register HS, see manual..
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