Panasonic KX-TCD280FX Operating Instructions Manual page 29

Note:
L The following items will be deleted or reset to
their default settings:
– Settings listed on page 24
– Redial list
– Voice enhancer
– Category names
– Category ringtones
L The following items will be retained:
– Handset phonebook entries (category
names and ringtones will be reset to their
default settings.)
– Date and time
Handset Settings
29