AT&T E5902B, E5921, E5903B user manual Replacing a handset, To de-registerall handsets

Getting started

Replacing a handset

You may need to de-register your handsets if:

You have the maximum number of registered handsets (four) and you need to replace a handset.

- OR -

You wish to change the designated handset number of your reg- istered 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-r�egist�er�all handset�s

1.Press and hold HANDSET LOCATOR on the telephone base for about 10 seconds (until the IN USE light turns on and 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.)

3.The handset(s) will show CONNECTING... and it will take about 10 seconds to complete de-registration. ALL handsets will show NOT REGISTERED if de-registration was successful.

NOT REGISTERED

4.To re-register the handset(s) to the telephone base, follow the registration instructions on page 6-7.

NOTES:

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

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