Apple iPhone/iPhone 3G (User manual) - Manual (Page 17)

Chapter 2 Basics 17
Status Icons
The icons in the status bar at the top of the screen give information about iPhone:
Status icon What it means
Cell signal Shows whether you’re in range of the
cellular network and can make and receive
calls. The more bars, the stronger the
signal. If there’s no signal, the bars are
replaced with “No service.”
Airplane mode Shows that airplane mode is on—you
cannot use the phone, access the Internet,
or use Bluetooth® devices. Non-wireless
features are available. See page 99.
3G Shows that your carrier’s 3G network is
available, and iPhone can connect to the
Internet over 3G. Available on iPhone 3G
only. See page 30.
EDGE Shows that your carrier’s EDGE network is
available, and iPhone can connect to the
Internet over EDGE. See page 30.
GPRS Shows that your carrier’s GPRS network is
available, and iPhone can connect to the
Internet over GPRS. See page 30.
Wi-Fi Shows that iPhone is connected to the
Internet over a Wi-Fi network. The more
bars, the stronger the connection. See
page 24.
Network activity Indicates over-the-air syncing or other
network activity. Some third party
applications may also use this icon to
indicate an active process.
VPN Shows that you are connected to a
network using VPN. See “Network” on
page 104.
Lock Shows that iPhone is locked. See page 21.
Play Shows that a song, audiobook, or podcast
is playing. See page 61.
Alarm Shows that an alarm is set. See page 92.