Appendix
141
Deregistering handsets
You may need to deregister your handsets if:
f You have 12 registered handsets and need to replace a handset.
-OR-
f 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
telephone base and chargers before you
begin deregistration.
2. Press and hold /FIND HS on the telephone
base for about ten seconds (until the IN USE
light starts to ash). The telephone base
screen shows Registering... Please wait for
ve seconds, then it shows Deregister all
devices?. Release /FIND HS.
3. Immediately press /FIND HS while the IN USE light is still ashing. (If the
light stops ashing, start again with Step 1.)
4. It takes up to ten 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 pages 139-140.
Notes:
f 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.
f You cannot deregister the handsets if any other system handset is in use.
f 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 ten minutes, the screen shows To register HS, see manual.
f If in Step 2 you already have 12 registered handsets, the telephone base shows Registration slots are full and
sounds two beeps. Continue holding /FIND HS until Deregister all devices? displays.
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