Deregistering Handsets; Deregister All Handsets From The Telephone Base - AT&T CL84115 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 handsets, and then register each handset you
wish to use again, one at a time.
�lease read carefully through all the instructions on this page before
beginning the deregistration process.

Deregister all handsets from the telephone base

In addition to the cordless handsets, this operation will also deregister all
cordless headsets and speakerphones registered to your telephone base.
1. Make sure that all handsets are out of the
chargers before you begin deregistration.
2. Press and hold
telephone base for about 10 seconds. The
IN U�E light turns on after about four seconds.
Keep holding
screen shows Deregister all devices? and the
IN U�E light begins to flash. Release
3. Immediately press
IN U�E light is still flashing. (If the light stops flashing, start again with
Step 1.)
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 H�, 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. Any call activity
will cancel the deregistration process.
• 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 10 minutes, the screen shows
To register H�, see manual.
/HAND�ET LOCATOR on the
/HAND�ET LOCATOR until the
/HAND�ET LOCATOR or
/HAND�ET LOCATOR.
MENU
97
/�ELECT while the