Kyocera QCP 6035 Reference Manual page 107

Be sure to tap the name in the left column, not the phone number in the right
column. Tapping the phone number initiates a call.
3. Tap Edit to display the Address Edit screen.
4. Tap Details.
5. Tap Delete.
6. If you want to keep a backup copy of this entry on your computer, put a check
mark in the Save archive copy on PC check box. If you don't want to save a
backup, remove the check mark.
7. In the confirmation dialog, tap OK to delete the entry or Cancel to keep it.
If you delete the entry, it is removed from both the Address Book and the Speed
Dial list.