Apple iphone 3g 16gb Guida Utente

Phone 

If you’ve paired iPhone with a device and want to use another device instead, you 
must unpair the first device. 

In Settings, choose General > Bluetooth and turn Bluetooth on. 

Choose the device and tap Unpair. 

International Calls 

iPhone is a UMTS/HSDPA (850, 1900, 2100 MHz) and a GSM (850, 900, 1800, 1900 MHz) 
phone, ensuring broad international coverage. 

For information about making international calls from your home area, including rates 
and other charges that may apply, contact your carrier or go to your carrier’s website. 

You can use iPhone to make calls in many countries around the world. You must first 
enable your carrier’s service plan for international roaming. 

Enable international roaming:  Contact your carrier. 

Set iPhone to add the correct prefix when dialing from another country:  In Settings, 
tap Phone, then turn International Assist on. This lets you make calls to your home 
country using the numbers in your contacts and favorites, without having to add a 
prefix or your country code.

1 

Set the carrier to use:  In Settings, tap Carrier, then select the carrier you prefer. This 
option is available only when you’re traveling outside your carrier’s network. You can 
make calls only on carriers that have roaming agreements with your iPhone service 
provider. For more information, see “Carrier” on page 101. 

Voice and data roaming charges may apply. To avoid data roaming charges, 

turn Data Roaming off. 

Turn Data Roaming on or off:  In Settings, choose General > Network and turn Data 
Roaming on or off. Data Roaming is turned off by default. 

1 Not available in all areas.