Deregister Handsets; Deregister All Handsets From The Telephone Base - AT&T DL72119 Complete User's Manual

Dect 6.0 cordless telephone/answering system with bluetooth wireless technology
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Appendix

Deregister handsets

You may need to deregister your handsets if:
You have five registered handsets and need to replace a handset.
f
-OR-
You wish to change the designated handset number of your registered
f
handsets.
You must first deregister ALL handsets, and then register each handset you
wish to use again, one at a time.
Please read carefully through all the instructions on this page before
beginning the deregistration process.

Deregister all handsets from the telephone base

In addition to the cordless handsets, this operation will also deregister all
cordless headsets and speakerphones registered to your telephone base.
1. Make sure that all handsets are out of the telephone base and chargers
before you begin deregistration.
2. Press and hold FIND HS on the telephone base for about 10 seconds
the IN USE light starts to flash). Release FIND HS.
3. Immediately press FIND HS again while the IN USE light is still flashing. (If the
light stops flashing, start again with Step 1.)
4. It takes up to 10 seconds to complete the deregistration process. Before
registering the handset again, wait for the cordless handset screen to display
To register, see user manual.
5. To register the handset(s) to the telephone base again, follow the
registration instructions on pages 121-122.
Notes:
If the deregistration process fails, you may need to reset the system and try again. To reset, unplug the power from
f
the telephone base and plug it back in.
You cannot deregister the handsets if any other system handset is in use.
f
Even if the battery is depleted, you can still deregister the handsets by following the steps. After the handset is
f
charged for at least 10 minutes, the screen shows To register, see user manual.
123
(until

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