Syncing copies information from your computer or online account to iPhone, then keeps the information in sync by copying changes made in one location to the other.
You use iTunes on your computer to sync contacts, calendars, and other information iOS apps, photos and videos; and music and other iTunes content. By default, syncing
occurs whenever you connect iPhone to your computer.You can also configure iPhone to access accounts with online service providers such as MobileMe, Microsoft Exchange, Google, Yahoo!, and others. Your information on those services is synced over the air.
MobileMe, Microsoft Exchange, Google, Yahoo!, and other online service providers sync information—which might include contacts, calendars, browser bookmarks, and notes (iPhone 3GS or later)—via your Internet connection (over the air), so that you don’t have to connect iPhone to your computer. The Internet connection can be over your cellular network or your local Wi-Fi network.
Some service providers—including MobileMe and Microsoft Exchange—push information updates. This means that syncing happens whenever any information is
changed. The Push setting in Fetch New Data must be turned on (it’s on by default). For iPhone 3G users, iPhone must also be awake or connected to your computer or
a power adapter. Other providers sync by periodically “fetching” changes that have occurred. Use the Fetch setting to determine how frequently this happens.
This is an overall information about How to Sync Accounts on iPhone 4,stay tune with us for more information on iPhone 4G.
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