User Manual

Getting started
17
Deregistering headset
Deregister all headsets from an AT&T DECT cordless
telephone base
Following the steps below will deregister all the headsets and
handsets registered to the cordless phone.
Press and hold /HANDSET LOCATOR on the telephone base
for about 10 seconds until the IN USE light starts to flash, then
release the button.
Immediately press /HANDSET LOCATOR again. You must
press /HANDSET LOCATOR while the IN USE light is still
flashing. (The light flashes for about five seconds. If the light
stops flashing, start again with step 1 above.)
It takes about 10 seconds to complete the deregistration
process. The light flashes slowly in red and blue when the
deregistration process is successful.
NOTES:
You cannot deregister the headset(s) if any system handset/headset is in use.
Even if the battery is depleted, you can still deregister the headset by
following the steps above.
The button used for deregistration on your cordless telephone system may be
different. Refer to your telephone user's manual for detailed information.
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