User Guide

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 “Airplane
Mode” on page 184.
3G Shows that your carrier’s 3G network is available, and
iPhone can connect to the Internet over 3G. See “How
iPhone Connects to the Internet” on page 22.
EDGE Shows that your carrier’s EDGE network is available, and
iPhone can connect to the Internet over EDGE. See “How
iPhone Connects to the Internet” on page 22.
GPRS Shows that your carrier’s GPRS network is available, and
iPhone can connect to the Internet over GPRS. See “How
iPhone Connects to the Internet” on page 22.
Wi-Fi* Shows that iPhone is connected to the Internet over
a Wi-Fi network. The more bars, the stronger the
connection. See “Joining a Wi-Fi Network” on page 23.
Network activity Shows over-the-air syncing or other network activity.
Some third-party apps may also use the icon to show an
active process.
Call Forwarding Shows that Call Forwarding is set up on iPhone. See “Call
Forwarding” on page 202.
VPN Shows that you’re connected to a network using VPN.
See “Network” on page 189.
Lock Shows that iPhone is locked. See “On/O Sleep/Wake
Button” on page 11 .
TTY Shows that iPhone is set to work with a TTY machine.
See “Using iPhone with a Teletype (TTY) Machine” on
page 203.
Play Shows that a song, audiobook, or podcast is playing. See
“Playing Songs and Other Audio” on page 89.
Portrait orientation lock Shows that the iPhone screen is locked in portrait
orientation. See “Viewing in Portrait or Landscape
Orientation” on page 31.
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Chapter 1 iPhone at a Glance