User Guide
Chapter 8 Settings 107
Turn Data Roaming on or o: Choose General > Network and turn Data Roaming on
or o.
Data Roaming turns on Internet and visual voicemail access over a cellular data
network when you’re in an area not covered by your carrier’s network. For example,
when you’re traveling, you can turn o Data Roaming to avoid potential roaming
charges. By default, Data Roaming is turned o.
Add a new VPN conguration: Choose General > Network > VPN > Add VPN
Conguration.
VPNs used within organizations allow you to communicate private information
securely over a non-private network. You may need to congure VPN, for example, to
access your work email on iPhone.
iPhone can connect to VPNs that use the L2TP, PPTP, or Cisco IPSec protocols. VPN
works over both Wi-Fi and cellular data network connections.
Ask your network administrator which settings to use. In most cases, if you’ve set up
VPN on your computer, you can use the same VPN settings for iPhone.
Once you’ve entered VPN settings, a VPN switch appears at the top level of the
Settings menu that you can use to turn VPN on or o.
Change a VPN conguration: Choose General > Network > VPN and tap the
conguration you want to update.
Turn VPN on or o: Tap Settings and turn VPN on or o.
Delete a VPN conguration: Choose General > Network > VPN, tap the blue arrow
to the right of the conguration name, and tap Delete VPN at the bottom of the
conguration screen.
Use Wi-Fi: See “Wi-Fi” on page 102.
Bluetooth
iPhone can connect wirelessly to Bluetooth headsets and car kits for hands-free
talking. See “Bluetooth Devices” on page 42.
Turn Bluetooth on or o: Choose General > Network > Bluetooth and turn Bluetooth
on or o.
Location Services
Location Services allows applications such as Maps and Camera to gather and use
data indicating your location. Location Services does not correlate the data it collects
with your personally identiable information. Your approximate location is determined
using available information from cellular network data, local Wi-Fi networks (if you
have Wi-Fi turned on), and GPS (if you have an iPhone 3G; GPS not available in all
locations).