Panasonic KX-TGW420 Operating Instructions Manual page 25

Erasing all caller information
1
MCallsN
2
Press and hold MDeleteN about 3 seconds. a
"Delete All?" is displayed, press MYesN.
3
Press MBackN or MHomeN repeatedly to return
to standby mode.
For assistance, please visit http://shop.panasonic.com/support
TGW420_(en)_OI_1226_ver06.pdf 25
Caller ID Service
25
2019/12/26 13:15:32