It is not possible to copy the entire Address Book to the SIM Phone Book all at once. Contacts on the handheld must be copied to the SIM individually
On the home screen, open the All tray and select Contacts . Press the Menu key, then select SIM Phone Book. Scroll to and highlight the desired contact. NOTE: If the SIM contact and phone number matches an existing contact in the Address Book, the contact can not be copied. Press the Menu key, then select Add To Contacts. NOTE: To copy the entire SIM Phone Book to the Address Book at once, press the Menu key, then select Copy All To Contacts. Add any additional information to the contact. NOTE: This option will not be available if copying all contacts. Press the Menu key, then select Save.