Apple iPhone iOS 5.1 - Manual (Page 164)

Turn Voice Roaming on or off
(CDMA) Go to Settings > General > Network. Turn Voice Roaming off to avoid
charges from using other carrier’s networks. When your carrier’s network
isn’t available, iPhone won’t have cellular (data or voice) service.
Turn Data Roaming on or off Go to Settings > General > Network.
Data Roaming permits Internet access over a cellular data network when
you’re in an area not covered by your carrier’s network. When you’re
traveling, you can turn off Data Roaming to avoid roaming charges. See
“Carrier” on page 161.
Enable or disable 3G Go to Settings > General > Network. This option is not available in all areas.
Using 3G loads Internet data faster in some cases, but may decrease battery
performance. If you’re making a lot of phone calls, you may want to turn 3G
off to extend battery life.
Turn Personal Hotspot on or off Go to Settings > General > Network > Personal Hotspot. See “Personal
Hotspot” on page 160.
Add a new VPN configuration Go to Settings > General > Network > VPN > Add VPN Configuration.
Ask your network administrator which settings to use. In most cases, if
you set up VPN on your computer, you can use the same VPN settings
for iPhone.
See “VPN” on page 160.
Bluetooth
iPhone can connect wirelessly to Bluetooth devices such as headsets, headphones, and car kits
for music listening and and hands-free talking. You can also connect the Apple Wireless Keyboard
with Bluetooth. See “Using an Apple Wireless Keyboard” on page 27.
Turn Bluetooth on or off: Go to Settings > General > Bluetooth and turn Bluetooth on or off.
Connect to a Bluetooth device Tap the device in the Devices list, then follow the onscreen instructions
to connect to it. See the documentation that came with the device for
instructions about Bluetooth pairing.
iTunes Wi-Fi Sync
You can sync iPhone with iTunes on a computer that is connected to the same Wi-Fi network.
Enable iTunes Wi-Fi Sync: To set up Wi-Fi syncing for the first time, connect iPhone to the
computer that you want to sync with. For instructions see “Syncing with iTunes” on page 18.
After you configure Wi-Fi Sync, iPhone syncs with iTunes automatically, once a day, when it’s
connected to a power source and:
iPhone and your computer are both connected to the same Wi-Fi network. Â
iTunes on your computer is running. Â
See the date and time of the
last sync Go to Settings > General > iTunes Wi-Fi Sync.
Immediately sync with iTunes Go to Settings > General > iTunes Wi-Fi Sync, then tap Sync Now.
164 Chapter 32 Settings