AT&T CL80111 Cordless Telephone User Manual


 
11
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 your telephone base
1. Make sure that all handsets are out of the telephone base or
chargers before you begin deregistration.
2.
Press and hold /HANDSET LOCATOR on the telephone base
for about 10 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 or MENU/SELECT
while the IN USE 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, see manual.
5. To register the handset(s) to the telephone base again, follow
the registration instructions on pages 8-10.
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 10 minutes,
the screen shows To register, see manual.
Registration and deregistration