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Appendix C
52
Expansion handset
Deregistering a handset
You can deregister handsets. You may need to deregister your handsets if:
You have twelve 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 the handsets, and then re-register each handset
you wish to use.
Please read carefully through all the instructions on this page before
beginning the deregistration process.
To deregister all handsets
1. Press and hold
HANDSET LOCATOR on the telephone base for about
10 seconds (until the IN USE light starts to flash), then release the
HANDSET LOCATOR button.
2. Immediately press and release HANDSET LOCATOR again. You must
press HANDSET LOCATOR while the IN USE light is still flashing. (The
light flashes for about seven seconds. If the light stops flashing, pick up
the handset and place it back into the telephone base, then start again
with step one above.)
3. The handset(s) shows CONNECTING... and it takes about 10 seconds to
complete the deregistration process. ALL handsets show NOT
REGISTERED when deregistration is successful.
4. To re-register the handset(s) to the telephone base, follow the registration
instructions on page 51.
NOTES:
1. If the deregistration process is not successful, you might need to reset the system
and try again. To reset: pick up the handset and press the PHONE/
FLASH button,
then press the OFF/
CLEAR button and place the handset back into the telephone
base. You can also reset by unplugging the power from the telephone base and
plugging it back in.
2. You cannot deregister the handset(s) if any other system handset is in use.
3. Even if the battery is depleted, you can still deregister the handset by following the
steps above. After the handset is charged for at least 10 minutes, the screen shows
NOT REGISTERED.