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Appendix
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/or headset you wish to use individually.
To make deregistration easier, read all of the instructions on this page before
you begin.
To deregister all handsets:
Make sure that all handsets are out of the
telephone base and handset chargers before
you begin deregistration.
Press and hold /FIND HANDSET on the
telephone base for about 10 seconds until the
IN USE light ashes.
Quickly press /FIND HANDSET again. You
must press /FIND HANDSET while the IN USE
light is still ashing. The IN USE light ashes for about ve seconds.
If the
light stops ashing, start again with Step 1 above.
All system handsets show Put handset on BASE to register and all
headset lights flash slowly and alternately in red and blue. You hear
a confirmation tone when deregistration completes. The deregistration
process takes about 10 seconds to complete.
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:
Press and hold OFF/CANCEL or place the handset back 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.
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You cannot deregister the handsets and headsets if any system handset or
headset is in use.
Even if the battery is depleted, you can still deregister the handsets by
following the steps above.
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