Apple IPhone IOS 31 User Guide

Many Wi-Fi networks can be used free of charge including, in some regions, Wi-Fi 
hotspots provided by your iPhone carrier. Some Wi-Fi networks require a fee. To join a 
Wi-Fi network at a hotspot where charges apply, you can usually open Safari to see a 
webpage that allows you to sign up for service.
Joining a Wi-Fi Network
The Wi-Fi settings let you turn on Wi-Fi and join Wi-Fi networks.
Turn on Wi-Fi:  Choose Settings > Wi-Fi and turn Wi-Fi on.
Join a Wi-Fi network:   Choose Settings > Wi-Fi, wait a...

Internet Access on an Airplane
Airplane mode turns off the iPhone radio transmitters to avoid interfering with aircraft 
operation. In some regions, where allowed by the aircraft operator and applicable laws 
and regulations, you can turn on Wi-Fi while airplane mode is on, to:Send and receive email
• 
Browse the Internet• 
Sync your contacts and calendars over the air• 
Stream YouTube videos• 
Get stock quotes• 
Get map locations• 
Get weather reports• 
Purchase music and applications• 
For more...

• USB:  Connect your computer to iPhone, using the Dock Connector to USB Cable.  
In your computer’s Network services settings, choose iPhone.
On a Mac, a pop-up window appears the first time you connect, saying “A new 
network interface has been detected.” Click Network Preferences, configure the 
network settings for iPhone, then click Apply. On a PC, use the Network Control 
Panel to configure the iPhone connection.
• Bluetooth:  On iPhone, choose Settings > General > Bluetooth and turn on 
Bluetooth....

Charge the battery and sync iPhone:  Connect iPhone to your computer using the 
included Dock Connector to USB Cable. Or connect iPhone to your computer using the 
included cable and the Dock, available separately.
Unless your keyboard has a high-powered USB 2.0 port, you must connect iPhone to a 
USB 2.0 port on your computer.
Important:   The iPhone battery may drain instead of charge if iPhone is connected to a 
computer that’s turned off or is in sleep or standby mode.
If you charge the battery while...

Security Features
Security features help protect the information on iPhone from being accessed by 
others.
You can set up a passcode that you must enter each time you turn on or wake up 
iPhone.
Set a passcode:  Choose General > Passcode Lock and enter a 4-digit passcode, then 
enter the passcode again to verify it. iPhone then requires you to enter the passcode 
to unlock it or to display the passcode lock settings.
For addition information about using a passcode lock, see “Passcode Lock
”  on 
page 145...

Cleaning iPhone
To clean iPhone, unplug all cables and turn off iPhone (press and hold the Sleep/ Wake 
button, then slide the onscreen slider). Then use a soft, slightly damp, lint-free cloth. 
Avoid getting moisture in openings. Don’t use window cleaners, household cleaners, 
aerosol sprays, solvents, alcohol, ammonia, or abrasives to clean iPhone. If your iPhone 
has an oleophobic coating on the screen (iPhone 3GS only), simply wipe your iPhone’s 
screen with a soft, lint-free cloth to remove oil left...

Phone
3
Phone Calls
Making a call on iPhone is as simple as tapping a name and number in your contacts, 
tapping one of your favorites, or tapping a recent call to return it.
Making Calls
Buttons at the bottom of the Phone screen give you quick access to your favorites, 
recent calls, your contacts, and a numeric keypad for dialing manually.
WARNING:  For important information about driving safely, see the Important Product 
Information Guide at www.apple.com/support/manuals/iphone.
Number of missed...

Paste a number to the keypad:  Tap the screen above the keyboard, then tap Paste.  
If the phone number you copied included letters, iPhone automatically converts them 
to the appropriate digits.
Jump to favorites from anywhere:   Double-click the Home  button. You can change 
this preference in Settings. See “Home” on page 14 7 .
Bring up the last number you dialed:   Tap Keypad, then tap Call. Tap Call again to dial 
the number.
Voice Dialing
You can use Voice Control (iPhone 3GS only) to call someone...

Receiving Calls
When you receive a call, tap Answer. If iPhone is locked, drag the slider. You can also 
press the center button on your iPhone headset or the equivalent button on your 
Bluetooth headset to answer a call.
Center button
Silence a call:  Press the Sleep/Wake button or either volume button. You can still 
answer the call after silencing it, until it goes to voicemail.
Decline a call:   Do one of the following to send a call directly to voicemail.
Press the Sleep/Wake button twice quickly.
•...

Mute your lineTap Mute. You can still hear the caller, but the 
caller can’t hear you.
Use the keypad to enter information Tap Keypad.
Use the speakerphone or a Bluetooth device Tap Speaker. The Button is labeled Audio Source 
when a Bluetooth device is available, which  
lets you select the Bluetooth device, iPhone,  
or Speaker Phone.
See contact information Tap Contacts.
Put a call on hold Tap Hold. Neither party can hear the other.
Make another call Tap Add Call.
Use other applications during a call:...