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Appendix
87
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 first 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
1. Make sure that all handsets are out of the telephone base and chargers
before you begin deregistration.
2. Press and hold /HANDSET LOCATOR on the
telephone base for about 10 seconds (until the
IN USE light starts to flash), then the telephone base
screen shows Deregister all devices?
Release /HANDSET LOCATOR.
3. Immediately press /HANDSET LOCATOR while the
IN USE light is still flashing. (If the light stops flashing,
start again with Step 1 above.)
4. It takes up to 10 seconds to complete the deregistration process. Wait for
the cordless handset screen to display Put HS on BASE to register before
registering the handset again.
5. To register the handset(s) to the telephone base again, follow the
registration instructions on the previous page.
After you deregister the handset(s), the date and time need to be set. For
instructions, see Set date/time on page 13.
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.
Even if the battery is depleted, you can still deregister the handsets by following the steps
above. After the handset is charged for at least 10 minutes, the screen shows
Put HS on BASE to register.
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