1. From the home screen, press the Down Nav key.
   
2. Scroll to Add New Contact, then press the Center Nav key.
   
3. Enter the first name, then scroll to the Last Name field.
   
4. Enter the last name, then scroll to the Mobile field.
   
5. Enter the phone number.
   
6. To add a custom ringtone, scroll to Default Ringtone, then scroll left or right to select the desired tone.
   
7. Edit additional details as desired, then press the Center Nav key.
   
8. To edit a contact, scroll to the desired contact, then press the Left Soft key.
   
9. Scroll to Edit, then press the Center Nav key.
   
10. To delete the contact, scroll to Delete, then press the Center Nav key.
    
11. Press the Left Soft key.