With the phone off the hook, when reviewing a number from the received or dialed calls list, we can turn it into a VIP number. These numbers cannot be individually deleted, but they can be removed with the option to delete all numbers from the list.
When you see the number on the list, press the VIP/P key. The screen will display a lock icon .
Press the VIP/P key again to make it a regular number again and the icon will disappear.
NOTE: When the memory is full, older numbers will be replaced by newer ones, except for VIP numbers that will remain on the list.