AT&T AT3111-2 user manual Replacing a handset, To de-registerall handsets

Appendix

Replacing a handset

You may need to de-register your handsets if:

You have the maximum number of registered handsets (five) 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 ALL the handsets 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 FIND HANDSET on the telephone base for about 10 seconds (until the IN USE light turns on and starts to flash), then release the FIND HANDSET button.

2.Immediately press and release FIND HANDSET again. You must press FIND HANDSET while the IN USE light is still flashing. The IN USE light will flash for approximately seven seconds.

3.Soon, the handsets will show handset(s) will show CONNECTING... and it will take about 10 seconds to complete the de-registration process. All handsets will show NOT REGISTERED if de-registration is successful.

NOT REGISTERED

4.To re-register the handset(s) to the telephone base, follow the registration instructions on page 35.

NOTES:

1.If the de-registration process is not successful, you may need to reset the system and try again. To reset: pick up the handset and press the /FLASH button, then press the OFF/CLEAR button and place the handset back into the telephone base. You may also reset by unplugging the power from the telephone base then plugging it back in.

2.You cannot de-register the handset(s) if any telephone connected to the telephone line is in use.

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