User's Guide

APPLE CONFIDENTIAL — First Draft (1.10.11)
6WTP)QPQTQÒ(GSM models only.) Choose General > Network, then tap to turn 3G
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Using 3G loads Internet data faster in some cases, but may decrease battery
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extend battery performance.
6WTP%GNNWNCT&CVCQPQTQÒChoose General > Network, then turn Cellular Data on or
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Wi-Fi network. By default, Cellular Data is turned on.
6WTP&CVC4QCOKPIQPQTQÒChoose General > Network, then turn Data Roaming on
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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,
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6WTP+PVGTPGV6GVJGTKPIQPQTQÒ(GSM models only.) Choose General > Network >
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See “Sharing an Internet Connection” on page 24.
6WTP2GTUQPCN*QVURQVQPQTQÒ(CDMA model only.) Choose General > Network >
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See “Sharing an Internet Connection” on page 24.
#FFCPGY820EQP°IWTCVKQPChoose General > Network > VPN > Add VPN
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VPNs used within organizations allow you to communicate private information
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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 enter VPN settings, a VPN switch appears in the Settings menu that you can
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the Internet” on page 22.
%JCPIGC820EQP°IWTCVKQPChoose General > Network > VPN and tap the
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Chapter 25 Settings