(User manual)

Listen to visual voicemail 
Check your calendar 
Take or view pictures 
Hear alarms 
Use the stopwatch or timer 
Use the calculator 
Take notes 
Read text messages and email messages stored on iPhone 
In some regions, where allowed by the aircraft operator and applicable laws and
regulations, you can turn Wi-Fi back on, enabling you to:
Send and receive email 
Browse the Internet 
Sync your contacts, calendars, and bookmarks (MobileMe only) with MobileMe and 
Microsoft Exchange
Stream YouTube videos 
Get stock quotes 
Get map locations 
Get weather reports 
Use the iTunes Wi-Fi Music Store or the App Store 
Wi-Fi
Wi-Fi settings determine whether iPhone uses local Wi-Fi networks to connect to the
Internet. If no Wi-Fi networks are available, or you’ve turned Wi-Fi off, then iPhone
connects to the Internet via your cellular data network, when available. You can use
Mail, Safari, YouTube, Stocks, Maps, Weather, and the App Store over a cellular data
network connection, but not the iTunes Wi-Fi Music Store.
Turn Wi-Fi on or off: Choose Wi-Fi and turn Wi-Fi on or off.
Join a Wi-Fi network: Choose Wi-Fi, wait a moment as iPhone detects networks in
range, then select a network. If necessary, enter a password and tap Join. (Networks
that require a password appear with a lock icon.)
Once you’ve joined a Wi-Fi network manually, iPhone automatically joins it whenever
the network is in range. If more than one previously used network is in range, iPhone
joins the one last used.
When iPhone is joined to a Wi-Fi network, the Wi-Fi icon in the status bar at the top
of the screen shows signal strength. The more bars you see, the stronger the signal.
Set iPhone to ask if you want to join a new network: Choose Wi-Fi and turn “Ask to
Join Networks” on or off.
100 Chapter 8 Settings