iPhone User Manual Guide
To use iPhone, you need: A new wireless service plan with the carrier that provides iPhone service in your area A Mac or a PC with a USB 2.0 port and one of the following operating systems: Mac OS X version10.4.10 or later Windows XP Home or Professional with Service Pack 2 or later Windows Vista Home Premium, Business, Enterprise, or Ultimate edition Display resolution on your computer set to 1024 x 768 or higher iTunes 7.5 or later, available at www.apple.com/itunes An iTunes Store account (a major credit card is required to open a new account) An Internet connection.
Before you can use any of iPhone’s features, you must activate iPhone by signing up for a service plan with the iPhone service carrier in your area and registering iPhone with the network. If you already have a wireless account with the carrier, you may be able to upgrade your account to work with iPhone, or keep using your old phone and add a new line for iPhone. (Some accounts may not be upgradable.) You may also be able to transfer your current phone number to iPhone, or get a new one.