AT&T CL80115 User Manual page 17

Registration and deregistration
Deregistering handsets
NOTES:
• If the deregistration 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 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 mentioned on the previous page. After the handset is charged for at least
ten minutes, the screen shows To register HS, see manual.
Deregister all handsets from your telephone base for AT&T
models CL84115/CL84215/CL84265/CL84365
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
for about 10 seconds. The In USE light turns on after about four
seconds. Keep holding
shows Deregister all devices? and the In USE light begins to
flash. Release
3. Immediately press
while the In USE light is still flashing. (If the light stops flashing,
start again with Step 1.)
4. The deregistration takes about 10 seconds to complete. If the
deregistration is successful, all handsets display To register HS,
see manual.
5. To register the handset(s) to the telephone base again, follow
the registration instructions on page 11.
NOTES:
• If the deregistration 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 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 mentioned above. After the handset is charged for at least ten minutes, the
screen shows To register HS, see manual.
/HAnDSET LOCATOR on the telephone base
/HAnDSET LOCATOR until the screen
/HAnDSET LOCATOR.
/HAnDSET LOCATOR or
13
/SELECT
mEnU