Deregistering Handsets; Deregister All Handsets From The Telephone Base - AT&T CL83143 Abridged User Manual

Appendix

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 ten seconds (until the IN USE light starts
to flash). The telephone base screen shows
Registering... Please wait for five seconds, then it shows
Deregister all devices? Release /HANDSET LOCATOR.
3. Immediately press /HANDSET LOCATOR again while the
IN USE light is still flashing. (If the light stops flashing, 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 the previous page.
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, as
mentioned above. After the handset is charged for at least ten minutes, the screen shows
To register HS, see manual.
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