VTech SN6107 Manual - Manual (Page 5)

Deregister devices
If you want to replace a device, or reassign the designated
device number of a registered device, you must deregister
all devices that are registered to the telephone base. Then
register each device individually.
To deregister all devices from your SN1157/
SN1196/SN1197/SN6146/SN6147/SN6196/SN6197
telephone base:
Press and hold FIND HS at the side of the telephone
base for about 0 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 0 seconds to complete.
To deregister all devices from your SN6127/SN6187
telephone base:
Press and hold /FIND HANDSET at the side of the
telephone base for about 0 seconds until the telephone
base IN USE light turns solid red and then flashes red,
then release /FIND HANDSET.
Immediately press /FIND HANDSET.
All handsets show To register HS, see manual. The
deregistration process takes about 0 seconds to complete.
You cannot deregister all devices if any system device is
in use.
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