User's Guide

Syncing and File Sharing
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APPLE CONFIDENTIAL — First Draft (1.10.11)
About Syncing
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.
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MobileMe, Microsoft Exchange, Google, Yahoo!, and others. Your information on those
services is synced over the air.
Syncing Accounts
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. See “Fetch
New Data” on page 209.
For information about setting up accounts on iPhone, see “Adding Mail, Contacts, and
Calendar Accounts” on page 25.
Syncing with iTunes
You can set iTunes to sync any or all of the following:
Contacts—names, phone numbers, addresses, email addresses, and more 
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