VTech SN6197_-2 Abridged manual - Manual (Page 17)

Getting started
11
Deregister all devices
If you want to replace a device, or reassign the designated handset
number of a registered handset, you must deregister all devices that are
registered to the telephone base. Then register each device individually.
To make deregistration easier, read all of the instructions on this page
before you begin.
To deregister all devices:
Press and hold FIND HS at the side of the telephone base for about
10 seconds until the telephone base shows Registering... Please
wait followed by Deregister all devices?, then release FIND HS.
Immediately press YES or FIND HS.
All handsets show To register HS, see manual. The deregistration
process takes about 10 seconds to complete.
To register the handset(s) or pendant(s) to the telephone base again,
follow the registration instructions on pages 9-10.
You cannot deregister all devices if any system device is in use.
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