AT&T TL92420, TL92370, TL92320, TL92270 Replace a handset, To deregister all handsets, To reset

Appendix

Replace a handset

If you want to replace a handset or re-assign the designated handset number of a registered handset, you must deregister all the handsets and then individually register each handset.

To make deregistration easier, read all of the instructions on this page before you begin.

To deregister all handsets:

1.Press and hold /HANDSET LOCATOR on the telephone base for about 10 seconds until the IN USE light flashes, then release /HANDSET LOCATOR.

2.Press /HANDSET LOCATOR again. You must press

/HANDSET LOCATOR while the IN USE light is still flashing. The IN USE light flashes for about seven seconds.

3.All system handsets show Out of range OR No power at base for a few seconds and then show Press and hold HANDSET LOCATOR on base for 4 sec, then press # on handset when the deregistration is completed. The deregistration process takes about 10 seconds to complete.

If deregistration fails, you may need to reset the telephone and try again.

To reset:

•Press and hold OFF/CLEAR or place the handset back in the telephone base.

-OR-

•Unplug the power from the telephone base, then plug it back in.

After deregistering, register each handset individually. See Add and register a handset on page 11.

NOTE: You cannot deregister the handsets if any other system handset is in use.

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