AT&T CL84109, CL84309, CL84209 user manual Deregistering a handset

Appendix C

Expansion handset

Deregistering a handset

You may need to deregister 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 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 INTERCOM/HANDSET LOCATOR on the telephone base for about 10 seconds (until the IN USE light starts to flash), then release the INTERCOM/HANDSET LOCATOR button.

2.Immediately press and release INTERCOM/HANDSET LOCATOR again. You must press INTERCOM/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 charger, then start again with step one above.)

3.The handsets show CONNECTING... and it takes about 10 seconds to complete the deregistration process. ALL handsets show NOT REGISTERED when deregistration is successful.

4.To re-register handsets to the telephone base, follow the registration instructions on page 67.

NOTES:

1.If the deregistration 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 charger. You can also 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 NOT REGISTERED.

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