[ 47 ]Use the phone book8Erase your entire phone bookCaution: This feature erases your entire phone book and cannotbe undone!1 Press Names.2 Scroll to Erase and press Select.3 Scroll to Erase all and press Select.4 Scroll to the memory (Phone or SIM card) you want to erase, thenpress Erase.5 Press OK to confirm. Enter your security code and press OK. See“Security code” on page 90 for the default code.