for iOS 5.0 software

Turn o Voice Roaming on a
CDMA network
Go to Settings > General > Network.
Turning Voice Roaming o disables phones calls when you’re outside of
your carrier’s network.
Turn o Data Roaming Go to Settings > General > Network.
Turning Data Roaming o disables data transmission over the cellular
network. Apps that depend on Internet access are disabled unless iPhone
has access to the Internet via a Wi-Fi connection. Visual voicemail delivery is
suspended when roaming unless your carrier does not charge for it.
Set iPhone to add the correct
prex when dialing from
another country
Go to Settings > Phone, then turn on International Assist (not available in
all areas). This lets you use contacts and favorites to make U.S. calls, without
having to add a prex or country code.
Set the carrier to use Go to Settings > Carrier. This option is available only when you’re traveling
outside your carrier’s network, and with carriers that have roaming
agreements with your service provider. For more information, see
“Carrier
” on page 14 6.
Get voicemail when visual
voicemail isn’t available
Dial your own number (with CDMA, dial your number followed by #), or
touch and hold “1” on the numeric keypad.
Turn o cellular data Go to Settings > General > Network.
Turn o cellular services Go to Settings, tap Airplane Mode to turn it on, then tap Wi-Fi and turn
Wi-Fi on.
Incoming phone calls are sent to voicemail. To make and receive calls again
and get your voicemail messages, turn airplane mode o.
Setting options for Phone
In Settings, go to Phone to:
See the phone number for your iPhone Â
Turn call forwarding, call waiting, and caller ID on or o (GSM) Â
Turn TTY on or o Â
Change your voicemail password (GSM) Â
Turn international assist on or o—when calling from abroad, international assist lets you call Â
contacts and favorites in the U.S. without having to add a prex or country code (GSM)
Lock your SIM to require a PIN when you turn iPhone on (required by some carriers) Â
In Settings, go to FaceTime to:
Turn FaceTime on or o Â
Use your Apple ID for FaceTime Â
Add an email address for FaceTime Â
To set ringtones, vibration options, and the sound for new voicemail, go to Settings > Sounds. See
also “Sounds and the Ring/Silent switch” on page 14 6.
50
Chapter 5 Phone