User Guide

Chapter 5 Phone 53
Call forwarding, call waiting, and caller ID
Set up call forwarding, call waiting, or caller ID. (GSM) Go to Settings > Phone.
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Call Forwarding: The Call Forwarding icon appears in the status bar when call forwarding is
on. You must be in range of the cellular network when you set iPhone to forward calls, or calls
won’t be forwarded.
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Call Waiting: 
to voicemail.
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Caller ID: 
For CDMA accounts, contact your carrier for information about enabling and using these
features. See support.apple.com/kb/HT4515.
Ringtones and vibrations
iPhone comes with ringtones that sound for incoming calls, Clock alarms, and the Clock timer.
You can also purchase ringtones from songs in the iTunes Store. See Chapter 22, iTunes Store, on
page 11 2 .
Set the default ringtone. Go to Settings > Sound > Ringtone.
Go to Contacts, choose a contact,
tap edit, then tap Ringtone.
Flip the switch on the side of iPhone.
Important: Clock alarms still sound when the Ring/Silent switch is set to silent.
Go to Settings > Sounds. See Sounds and silence on page 34.
International calls
For information about making international calls from your home area (including rates and other
charges that may apply), contact your carrier.
When traveling abroad, you may be able to use iPhone to make calls, send and receive text
messages, get visual voicemail, and use apps that access the Internet, depending on available
networks.
Enable international roaming. To turn on Data Roaming and Voice Roaming (CDMA), go to
Settings > Cellular. Contact your carrier for information about availability and fees.
Important: Voice, text message, and data roaming charges may apply. To avoid charges while

You may be able to roam on GSM networks, if you have a CDMA account, and your iPhone has 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:
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
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Use GSM networks abroad (CDMA)
See Usage information on page 177.