I have Verizon and I found out the hard way many times that they don't have sim cards. That's why they came up with a back up plan. I'm not positively sure how to do this, but I know you can back them up on the internet. Go to Verizon Wireless's website and it should tell you.
for taking the back up for the contact list; you may go to the contacts of your phone and choose the 'phone and SIM' memory in use, them go to the tab, copy/move contacts, and choose move all contacts to SIM card. this will take the back up for the contact list.
Veizon website has a contact list back up feature when you go under my account. You do need the cord that connects the phone to the computer to use it.
Verizon Wireless offers back-up assistant which is the easiest way to accomplish this. However, the Razr would have to be active and still be capable of making calls.
Does cingular have a backup phonebook thing like verizon's backup assistant? where everynite to use Mobile Phone Tools (or) Mobile Edit software with your RAZR to backup your address book does cingular have a backup phonebook thing like verizon's backup assistant? where everynite at a specified time to your phone...