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Adding the handset to your telephone base
12
Deregistering a handset
To deregister all handsets
(for AT&T CL84100/CL84200/CL84250/CL84300 model)
1. Press and hold LOCATOR on the telephone
base for about 10 seconds until the base screen
shows Registering handset... followed by
Deregister all handsets?, then release the
LOCATOR button.
2. Immediately press MENU/SELECT.
3. It takes up to 60 seconds to complete
the deregistration process. Wait for the
cordless handset screen to alternately display 1.Press HS LOC
on base 4sec and 2.Then press # on handset.
4. To register the handset(s) to the telephone base again, follow
the instructions on page 10.
After you deregister the handset(s), the telephone base is in
idle mode but the system date and time information needs to
be reset. For instructions, see Set date/time in the telephone
system user’s manual for details. To skip setting the date and
time, press OFF/CLEAR.
NOTES:
1. 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.
2. You cannot deregister the handset(s) if any other system handset is in use.
3. Even if the battery is depleted, you can still deregister the handset by following
the steps on the previous page or the steps above. After the handset is charged
for at least 10 minutes, the screen shows 1.Press HS LOC on base 4sec and
2.Then press # on handset.
Deregister
all handsets?