Deregistering Handsets; Deregister All Handsets From The Telephone Base - AT&T CLP99283 User Manual

Appendix

Deregistering handsets

If you want to replace a handset or reassign the designated handset number
of a registered handset, you must deregister all the handsets and then
individually register each handset again.
To make deregistration easier, read all of the instructions on this page before
you begin.

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. 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 or press YES. You must
press /HANDSET LOCATOR or
base returns to idle screen, start again with Step 1.
4. The telephone base shows Deregistered all devices when the registration
completes. 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 pages 123-124.
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
mentioned above. After the handset is charged for at least ten minutes, the screen shows
To register HS, see manual.
• If you already have 12 registered handsets, the telephone base shows Registration slots are full
and sounds two beeps in Step 2, as mentioned above. Continue holding
until Deregister all devices? displays.
YES
within five seconds. If the telephone
125
Deregister
al l devices?
NO YES
/HANDSET LOCATOR