Deregistering A Handset; To Deregister All Handsets - AT&T CL80100 User Manual

Adding the handset to your telephone base

Deregistering a handset

You can deregister 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 the handsets, and then re-register
each handset you wish to use, one at a time.
Please read carefully through all the instructions on this page
before beginning the deregistration process.

To deregister all handsets

1. Press and hold
for about 10 seconds (until the IN USE light starts to flash), then
release the
2. Immediately press and release
You must press
is still flashing. (The light flashes for about seven seconds. If the
light stops flashing, pick up the handset and place it back into
the telephone base, then start again with step one above.)
3. It takes up to 60 seconds to complete the deregistration
process. Then the handset screen alternately displays 1.Press
HS LOC on base 4sec and 2.Then press # on handset to wait
for re-registration.
4. To re-register the handset(s) to the telephone base, follow the
registration instructions on the previous page.
NOTES:
1. If the deregistration process is not successful, you might need to reset the
system and try again. To reset: You may reset by unplugging the power from the
telephone base and plugging 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 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.
/HANDSET LOCATOR on the telephone base
/HANDSET LOCATOR button.
/HANDSET LOCATOR while the IN USE light
/HANDSET LOCATOR again.
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