Deregister Handsets - AT&T TL92271 User Manual

Appendix

Deregister handsets

If you want to replace a handset or reassign 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. Make sure that all handsets are out of the
telephone base and chargers before you
begin deregistration.
2. Press and hold
telephone base for about 10 seconds until the
IN USE light flashes, then release
/HANDSET LOCATOR.
3. Quickly press
while the IN USE light is still flashing. The
IN USE light flashes for about seven seconds. If the light stops flashing,
start again with Step 1.
All system handsets show Put handset on BASE to register and you hear
4.
a confirmation tone when the deregistration completes. The deregistration
process takes about 10 seconds to complete.
5. After deregistering, register each handset again individually. See Adding
and registering handsets on page 94.
NOTES:
• You cannot deregister the handsets if any other system handset is in use.
• Even if the battery is depleted, you can still deregister the handsets by following the
steps, as mentioned above.
• If the deregistration process fails, you may need to reset the system and try again. To
reset, unplug the power from the telephone base and plug it back in.
/HANDSET LOCATOR on the
/HANDSET LOCATOR again
95