Apple IPhone IOS 31 User Guide

							Turn sounds, alerts, or badges on or off for an application:  Tap Notifications, then 
choose an application from the list and choose the types of notification you want to 
turn on or off.
Carrier
This setting appears when you’re outside of your carrier’s network and other local 
carrier data networks are available to use for your phone calls, visual voicemail, and 
cellular network Internet connections. You can make calls only on carriers that have 
roaming agreements with your carrier. Additional fees may apply. Roaming charges 
may be billed to you by the carrier of the selected network, through your carrier.
For information about out-of-network coverage and how to enable roaming, contact 
your carrier or go to your carrier’s website.
Select a carrier:   Choose Carrier and select the network you want to use.
Once you select a network, iPhone uses only that network. If the network is 
unavailable, “No service” appears on the iPhone screen and you can’t make or receive 
calls or visual voicemail, or connect to the Internet via cellular data network. Set 
Network Settings to Automatic to have iPhone select a network for you.
Sounds and the Ring/Silent Switch
Switch between ring and silent mode:   Flip the Ring/Silent switch on the side of 
iPhone.
When set to silent, iPhone doesn’t play any ring, alert, or effects sounds. It does, 
however, play alarms set using Clock.
Note:   In some regions, the sound effects for Camera and Voice Memos are played even 
if the Ring/Silent switch is set to silent.
Set whether iPhone vibrates when you get a call:   Choose Sounds. To set whether 
iPhone vibrates in silent mode, turn Vibrate under Silent 
 on or off. To set whether 
iPhone vibrates in ring mode, turn Vibrate under Ring  on or off.
Adjust the ringer and alerts volume:   Choose Sounds and drag the slider. Or, if no 
song or video is playing and you aren’t on a call, use the volume buttons on the side of 
iPhone.
Set the ringtone:   Choose Sounds > Ringtone.
Set alert and effects sounds:   Choose Sounds and turn items on or off under Ring . 
When the Ring/Silent switch is set to ring, iPhone plays sounds for alerts and effects 
that are turned on.
You can set iPhone to play a sound whenever you:
Get a call
• 
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							Get a text message• 
Get a voicemail message• 
Get an email message• 
Send an email message• 
Have an appointment that you’ve set up to alert you• 
Lock iPhone• 
Type using the keyboard• 
Brightness
Screen brightness affects battery life. Dim the screen to extend the time before you 
need to recharge iPhone, or use Auto-Brightness.
Adjust the screen brightness:  Choose Brightness and drag the slider.
Set whether iPhone adjusts screen brightness automatically:   Choose Brightness 
and turn Auto-Brightness on or off. If Auto-Brightness is on, iPhone adjusts the screen 
brightness for current light conditions using the built-in ambient light sensor.
Wallpaper
You see a wallpaper background picture when you unlock iPhone. You can select one 
of the images that came with iPhone, or use a photo you’ve synced to iPhone from 
your computer.
Set wallpaper:   Choose Wallpaper and choose a picture.
General
The General settings include date and time, security, network, and other settings that 
affect more than one application. This is also where you can find information about 
your iPhone, and reset iPhone to its original state.
About
Choose General > About to get information about iPhone, including:
Name of your phone network
• 
Number of songs, videos, and photos• 
Total storage capacity• 
Space available• 
Software version• 
Serial and model numbers• 
Wi-Fi and Bluetooth addresses• 
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							IMEI (International Mobile Equipment Identity) and ICCID (Integrated Circuit Card • 
Identifier, or Smart Card) numbers
Modem firmware version of the cellular transmitter
• 
Legal information• 
Regulatory information• 
Usage
Show battery percentage:  Tap Usage and turn Battery Percentage on to display the 
percentage of battery charge next to the battery icon in the upper-right corner of 
iPhone (iPhone 3GS only).
See your usage statistics:   Choose Usage. There, you can see:
Usage—Amount of time iPhone has been awake and in use since the last full 
• 
charge. iPhone is awake whenever you’re using it—including making or receiving 
phone calls, using email, sending or receiving text messages, listening to music, 
browsing the web, or using any other iPhone features. iPhone is also awake while 
performing background tasks such as automatically checking for and retrieving 
email messages.
Standby—Amount of time iPhone has been powered on since its last full charge, 
• 
including the time iPhone has been asleep.
Current period call time and lifetime call time.
• 
Amount of data sent and received over the cellular data network.• 
Reset your usage statistics:   Tap Usage and tap Reset Statistics to clear the data and 
cumulative time statistics. The statistics for the amount of time iPhone has been 
unlocked and in standby mode aren’t reset.
Network
Use the Network settings to configure a VPN (virtual private network) connection, 
access Wi-Fi settings, or turn Data Roaming on or off.
Enable or disable 3G:   Tap to turn 3G on or off.
Using 3G loads Internet data faster in some cases, but may decrease battery 
performance. If you’re making a lot of phone calls, you may want to turn 3G off to 
extend battery performance.
Turn Data Roaming on or off:   Choose General > Network, then turn Data Roaming on 
or off.
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 off Data Roaming to avoid potential roaming 
charges. By default, Data Roaming is turned off.
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							Turn Internet Tethering on or off:  Choose General > Network > Internet Tethering, 
then turn Internet Tethering on or off.
Internet Tethering lets you share iPhone’s Internet connection with a computer 
connected via USB or Bluetooth (not available in all regions). Follow the onscreen 
instructions to complete the setup. Additional fees may apply. See “Using iPhone as a 
Modem
”  on page 42.
Add a new VPN configuration:   Choose General > Network > VPN > Add VPN 
Configuration.
VPNs used within organizations allow you to communicate private information 
securely over a non-private network. You may need to configure 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 in the Settings menu that you 
can use to turn VPN on or off.
VPN may also be automatically set up by a configuration profile. See “Installing 
Configuration Profiles
”  on page 18 .
Change a VPN configuration:   Choose General > Network > VPN and tap the 
configuration you want to update.
Turn VPN on or off:   Tap Settings and turn VPN on or off.
Delete a VPN configuration:   Choose General > Network > VPN, tap the blue arrow 
to the right of the configuration name, and tap Delete VPN at the bottom of the 
configuration screen.
Bluetooth
iPhone can connect wirelessly to Bluetooth devices such as headsets, headphones, and 
car kits for music listening and hands-free talking. See “Bluetooth Devices
”  on page 55 .
Turn Bluetooth on or off:   Choose General > Bluetooth and turn Bluetooth on or off.
Location Services
Location Services allows applications such as Maps Camera, and Compass to gather 
and use data indicating your location. Location Services doesn’t correlate the data 
it collects with your personally identifiable 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 (iPhone 3G or later; GPS may not be 
available in all locations).
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							You can turn Location Services off if you don’t want to use this feature. If you turn 
Location Services off, you’ll be prompted to turn it on again the next time an 
application tries to use this feature.
Turn Location Services on or off:  Choose General > Location Services and turn 
location services on or off.
To conserve battery life, turn Location Services off when you’re not using it.
Auto-Lock
Locking iPhone turns off the display to save your battery and to prevent unintended 
operation of iPhone. You can still receive calls and text messages, and you can adjust 
the volume and use the mic button on the iPhone stereo headset when listening to 
music or on a call.
Set the amount of time before iPhone locks:   Choose General > Auto-Lock and 
choose a time.
Passcode Lock
By default, iPhone doesn’t require you to enter a passcode to unlock it.
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.
Turn passcode lock off:   Choose General > Passcode Lock, enter your passcode, and 
tap Turn Passcode Off, then enter your passcode again.
Change the passcode:   Choose General > Passcode Lock, enter your passcode, and 
tap Change Passcode. Enter your passcode again, then enter and reenter your new 
passcode.
If you forget your passcode, you must restore the iPhone software. See “Updating and 
Restoring iPhone Software
”  on page 204.
Set how long before your passcode is required:   Choose General > Passcode Lock and 
enter your passcode. Tap Require Passcode, then select how long iPhone can be idle 
before you need to enter a passcode to unlock it.
Turn Voice Dial on or off:   Choose General > Passcode Lock and turn Voice Dial on  
or off.
Erase data after ten failed passcode attempts:   Choose General > Passcode Lock, 
enter your passcode, and tap Erase Data to turn it on.
After ten failed passcode attempts, your settings are reset to their defaults and all your 
information and media is erased:
• On iPhone 3GS:   by removing the encryption key to the data (which is encrypted 
using 256-bit AES encryption)
• On iPhone and iPhone 3G:   by overwriting the data
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							Important:  You can’t use iPhone while data is being overwritten. This can take up to 
two hours or more, depending on the model and storage capacity of your iPhone.   
(On iPhone 3GS, the removal of the encryption key is immediate.)
Restrictions
You can set restrictions for the use of some applications and for iPod content on 
iPhone. For example, parents can restrict explicit music from being seen on playlists,   
or turn off YouTube access entirely.
Turn on restrictions:
 1  Choose General > Restrictions, then tap Enable Restrictions.
 2 Enter a four-digit passcode. 
 3 Reenter the passcode.
Turn off restrictions:   Choose General > Restrictions, then enter the passcode.  
Tap Disable Restrictions, then reenter the passcode.
If you forget your passcode, you must restore your iPhone software from iTunes.   
See “Updating and Restoring iPhone Software
”  on page 204.
Set application restrictions:   Set the restrictions you want by tapping individual 
controls on or off. By default, all controls are on (not restricted). Tap an item to turn it 
off and restrict its use.
Safari is disabled and its icon is removed from the Home screen. You cannot use Safari 
to browse the web or access web clips. Other third-party applications may allow web 
browsing even if Safari is disabled.
YouTube is disabled and its icon is removed from the Home screen.
The iTunes Store is disabled and its icon is removed from the Home screen. You cannot 
preview, purchase, or download content.
The App Store is disabled and its icon is removed from the Home screen. You cannot 
install applications on iPhone.
Camera is disabled and its icon is removed from the Home screen. You cannot take 
pictures.
Location data isn’t provided to applications.
Restrict purchases within applications:   Turn In-App Purchases off. When enabled, 
this feature allows you to purchase additional content or features within applications 
downloaded from the App Store.
Set content restrictions:   Tap Ratings For, then select a country from the list. You can 
then set restrictions using that country’s ratings system for the following categories of 
content:
14 6Chapter 19    Settings  
						

							Music & Podcasts• 
Movies• 
TV Shows• 
Apps• 
In the United States for example, to allow only movies rated PG or below, tap Movies, 
then select PG from the list. 
Note:  Not all countries have rating systems.
Home
Choose General > Home to set preferences for double-clicking the Home button and 
searching categories on the Spotlight page. You can set iPhone so that double-clicking 
the Home button goes to the Home screen, Search, Phone Favorites, Camera, or iPod.
Set whether double-clicking the Home button shows iPod controls:   Turn on iPod 
Controls to display iPod controls when you’re playing music and double-click the 
Home button. This feature works even when the display is turned off or iPhone is 
locked.
Set what categories appear in search results:   Tap Search Results. All search categories 
in the list are selected by default. Tap an item to deselect it.
Set the order of search result categories:   Tap Search Results, then drag  next to a 
search category to a new place in the list.
Date and Time
These settings apply to the time shown in the status bar at the top of the screen, and 
in world clocks and calendars.
Set whether iPhone shows 24-hour time or 12-hour time:   Choose General > Date & 
Time and turn 24-Hour Time on or off. (Not available in all countries.)
Set whether iPhone updates the date and time automatically:   Choose General > 
Date & Time and turn Set Automatically on or off.
If iPhone is set to update the time automatically, it gets the correct time over the 
cellular network, and updates it for the time zone you’re in.
Some carriers don’t support network time in all locations. If you’re traveling, iPhone 
may not be able to automatically set the local time.
Set the date and time manually:   Choose General > Date & Time and turn Set 
Automatically off. Tap Time Zone and enter the name of a major city in your time zone. 
Tap the “Date & Time” return button, then tap “Set Date & Time” and enter the date   
and time.
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							Keyboard
Turn Auto-Correction on or off:  Choose General > Keyboard and turn Auto-Correction 
on or off.
By default, if the default keyboard for the language you select has a dictionary, iPhone 
automatically suggests corrections or completed words as you type.
Turn Auto-Capitalization on or off:   Choose General > Keyboard and turn Auto-
Capitalization on or off.
By default, iPhone automatically capitalizes words after you type sentence-ending 
punctuation or a return character.
Set whether caps lock is enabled:   Choose General > Keyboard and turn Enable Caps 
Lock on or off.
If caps lock is enabled and you double-tap the Shift 
 key on the keyboard, all letters 
you type are uppercase. The Shift key turns blue when caps lock is on.
Turn the “.” shortcut on or off:   Choose General > Keyboard and turn “.” Shortcut on  
or off.
The “.” shortcut lets you double-tap the space bar to enter a period followed by a space 
when you’re typing. It’s on by default.
Turn international keyboards on or off:   Choose General > Keyboards > International 
Keyboards and turn on the keyboards you want.
If more than one keyboard is turned on, tap 
 to switch keyboards when you’re 
typing. When you tap the symbol, the name of the newly active keyboard appears 
briefly. See “International Keyboards
”  on page 35.
International
Use International settings to set the language for iPhone, turn keyboards for different 
languages on or off, and set the date, time, and telephone number formats for your 
region.
Set the language for iPhone:   Choose General > International > Language, choose the 
language you want to use, then tap Done.
Set the Voice Control language for iPhone:   Choose General > International > Voice 
Control, then choose the language you want to use (available only on iPhone 3GS).
Turn international keyboards on or off:  Choose General > International > Keyboards, 
and turn on the keyboards you want.
If more than one keyboard is turned on, tap 
 to switch keyboards when you’re 
typing. When you tap the symbol, the name of the newly active keyboard appears 
briefly. See “International Keyboards
”  on page 35.
Set date, time, and telephone number formats:   Choose General > International > 
Region Format, and choose your region.
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							The Region Format also determines the language used for the days and months that 
appear in native iPhone applications.
Accessibility
To turn on accessibility features (available only on iPhone 3GS), choose Accessibility 
and choose the features you want. See Chapter 25, “Accessibility,”  on page 18 2 .
Resetting iPhone
Reset all settings:   Choose General > Reset and tap Reset All Settings.
All your preferences and settings are reset. Information, such as your contacts and 
calendars, and media, such as your songs and videos, aren’t deleted.
Erase all content and settings:   Connect iPhone to your computer or a power adapter. 
Choose General > Reset and tap “Erase All Content and Settings.”
This resets all settings to their defaults and erases all your information and media:
• On iPhone 3GS:   by removing the encryption key to the data (which is encrypted 
using 256-bit AES encryption)
• On iPhone and iPhone 3G: by overwriting the data
Important:   You can’t use iPhone while data is being overwritten. This can take up to 
two hours or more, depending on the model and storage capacity of your iPhone.   
(On iPhone 3GS, the removal of the encryption key is immediate.)
Reset network settings:  Choose General > Reset and tap Reset Network Settings.
When you reset network settings, your list of previously used networks and VPN 
settings not installed by a configuration profile are removed. Wi-Fi is turned off and 
then back on, disconnecting you from any network you’re on. The Wi-Fi and “Ask to 
Join Networks” settings are left turned on.
To remove VPN settings installed by a configuration profile, choose Settings > General 
> Profile, then select the profile and tap Remove.
Reset the keyboard dictionary:   Choose General > Reset and tap Reset Keyboard 
Dictionary.
You add words to the keyboard dictionary by rejecting words iPhone suggests as you 
type. Tap a word to reject the correction and add the word to the keyboard dictionary. 
Resetting the keyboard dictionary erases all words you’ve added.
Reset the Home screen layout:   Choose General > Reset and tap Reset Home Screen 
Layout.
Reset the location warnings:   Choose General > Reset and tap Reset Location 
Warnings.
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							Location warnings are the requests made by applications (such as Camera, Compass, 
and Maps) to use Location Services with those applications. iPhone stops presenting 
the warning for an application the second time you tap OK. Tap Reset Location 
Warnings to resume the warnings.
Mail, Contacts, Calendars
Use Mail, Contacts, Calendars settings to set up and customize accounts for iPhone: Microsoft Exchange
• 
MobileMe• 
Google email• 
Yahoo! Mail• 
AOL• 
Other POP and IMAP mail systems• 
LDAP accounts for Contacts• 
CalDAV or iCalendar (.ics) accounts for Calendars• 
Accounts
The Accounts section lets you set up accounts on iPhone. The specific settings that 
appear depend on the type of account you’re setting up. Your service provider or 
system administrator should be able to provide the information you need to enter.
For more information, see: “
• Setting Up Accounts” on page 16
“
• Adding Contacts”  on page 176
“
• Subscribing to and Sharing Calendars”  on page 93
Change an account’s settings:   Choose “Mail, Contacts, Calendars,” choose an account, 
then make the changes you want.
Changes you make to an account’s settings on iPhone are not synced to your 
computer, so you can configure your accounts to work with iPhone without affecting 
the account settings on your computer.
Stop using an account:   Choose “Mail, Contacts, Calendars,” choose an account, then 
turn Account off.
If an account is off, iPhone doesn’t display the account and doesn’t send or check email 
from or sync other information with that account, until you turn it back on.
Adjust advanced settings:   Choose “Mail, Contacts, Calendars,” choose an account, 
then do one of the following:
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