Deregister All Devices; Deregister All Devices From The Telephone Base - AT&T TL87203 User Manual

Appendix

Deregister all devices

You may need to deregister all devices if:
You have 12 registered devices and need to replace one of them.
X
-OR-
You wish to reassign the designated cordless handset or headset number of
X
your registered devices.
You must first deregister all devices, and then individually register each
device again.
To make deregistration easier, read all of the following instructions before
you begin.

Deregister all devices from the telephone base

All devices, including cordless headsets and speakerphones paired to your
telephone base, will be deregistered after the deregistration process.
1. Make sure that all cordless handsets are out of charger before you begin
deregistration.
2. Press and hold HOLD on the telephone base for
about 10 seconds. The telephone base shows
Deregister all devices?. Release HOLD.
3. Quickly press HOLD again or press
two seconds. If the telephone base returns to
the idle screen, start again from Step 1.
4. The telephone base shows Deregistered all
devices, and then returns to the idle screen. All
system handsets display To register HS, see
manual. and you hear a confirmation tone when the
deregistration completes. The deregistration process
takes about 10 seconds to complete. To register the
handset(s) to the telephone base again, follow the
registration instructions on the previous page.
NOTES:
If the deregistration process fails, you may need to reset the system and try again. To reset,
X
unplug the power from the telephone base and plug it back in.
You cannot deregister the devices if any other system device is in use.
X
YES within
144
Deregister
al l devices?
NO YES