De-registering a handset, To de-register all handsets, Expansion handset – AT&T DECT CL82359 User Manual
Page 57
Appendix C
52
Expansion handset
De-registering a handset
You can de-register handsets. You may need to de-register your handsets if:
You have twelve registered handsets and need to replace a handset.
-OR-
You wish to change the designated handset number of your registered
handsets.
You must first de-register ALL the handsets, and then re-register each
handset you wish to use.
Please read carefully through all the instructions on this page before
beginning the de-registration process.
To de-register all handsets
1. Press and hold HANDSET LOCATOR on the telephone base for about
10 seconds (until the IN USE light starts to flash), then release the
HANDSET LOCATOR button.
2. Immediately press and release HANDSET LOCATOR again. You must
press HANDSET LOCATOR while the IN USE light 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. The handset(s) shows SEARCHING FOR BASE and it takes about 10
seconds to complete the de-registration process. ALL handsets shows NOT
REGISTERED when de-registration is successful.
4. To re-register the handset(s) to the telephone base, follow the registration
NOTES:
1. If the de-registration process is not successful, you might need to reset the system
and try again. To reset: pick up the handset and press the PHONE/
FLASH
button,
then press the OFF/
CLEAR
button and place the handset back into the telephone
base. You can also reset by unplugging the power from the telephone base and
plugging it back in.
2. You cannot de-register the handset(s) if any other system handset is in use.