User Manual

Appendix
127
Deregistering handsets
You may need to deregister your handsets if:
 You have 12 registered handsets and need to replace a handset.
-OR-
 You wish to change the designated handset number of your
registered handsets.

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 or 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 ten seconds
(until the IN USE
Release FIND HS.
3. Immediately press FIND HS while the IN USE light is still

4. It takes up to ten seconds to complete the deregistration
process. Before registering the handset again, wait for the
cordless handset screen to display To register HS, see manual.
5. To register the handset(s) to the telephone base again, follow
the registration instructions on pages 125-126.