Apple ME323LL/A User Manual

Page of 162
 
Chapter  5    
Phone 
49
Important:  
Voice, text message, and data roaming charges may apply. To avoid charges while 
roaming, turn off Voice Roaming and Data Roaming.
You may be able to roam on GSM networks, if you have a CDMA account and you have an 
iPhone 4s or later with a SIM card installed. While roaming on a GSM network, iPhone has access 
to GSM network features. Charges may apply. Contact your carrier for more information.
Set network options. Go to Settings > Cellular to:
 
Turn data roaming on or off
 
Turn cellular data on or off
 
Turn voice roaming on or off (CDMA)
 
Use GSM networks abroad (CDMA)
 on page 155.
Turn off cellular services. Go to Settings, turn on Airplane Mode, then tap Wi-Fi and turn it on. 
Incoming phone calls are sent to voicemail. To resume cellular service, turn Airplane Mode off.
Make calls to your contacts and favorites while traveling abroad. (GSM) Go to Settings >  
Phone and turn on Dial Assist. Dial Assist automatically adds the prefix or country code for calls 
to the U.S.
Select a carrier network. Go to Settings > Carrier. This setting appears on GSM networks when 
you’re outside 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 a roaming agreement with your carrier. Additional fees may apply. 
Roaming charges may be billed to you by the other carrier, through your carrier.
Get voicemail when visual voicemail isn’t available. Dial your own number (with CDMA, add # 
after your number), or touch and hold “1” on the numeric keypad.
Phone settings
Go to Settings > Phone to:
 
See the phone number for your iPhone
 
Change the default text message replies for incoming calls
 
Turn call forwarding, call waiting, and caller ID on or off (GSM)
 
Turn TTY on or off
 
Change your voicemail password (GSM)
 
Require a PIN to unlock your SIM when you turn iPhone on (required by some carriers)
Go to Settings > Sounds to:
 
Set ringtones and volume
 
Set vibration options
 
Set the sound for new voicemail
Once you select a network, iPhone uses only that network. If the network is unavailable,  
“No service” appears on iPhone.
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