Deregistering Handsets; Deregister All Handsets From Your Telephone Base - AT&T CRL81112 Complete User's 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 the 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 your telephone base

1. Make sure that all handsets are out of the telephone base
and chargers before you begin deregistration.
2. Press and hold
base for about 10 seconds (until the IN USE light starts to
flash), then release the
3. Immediately press
IN USE light is still flashing. (The light flashes for about
seven seconds. If the light stops flashing, start again with
Step 1 above.)
4. It takes up to 10 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 is not successful, you might 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 handset(s) if any other system handset is in use.
• 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 To register HS, see manual.
/HANDSET LOCATOR on the telephone
/HANDSET LOCATOR button.
/HANDSET LOCATOR while the
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IN USE light