Nextel i920 用户手册

On the Home screen, select Start.

Select Settings and then Phone Networks.

Select GSM Network Selection.

In Network selection, select the option you want: Manual or Automatic.

If you selected Manual, select Menu and then Select a Network. Select the network 
and select Done. The Smartphone will use the selected network.

If you selected Automatic, select Menu and then Preferred Networks. Select the 
networks to use and select Done. The Smartphone will automatically use the 
preferred networks.

Select Done.

Note: You will see this option only if you are on a GSM network.

On the Home screen, select Start.

Select Settings and then Phone Calls.

Select Fixed Dialing and then Enable fixed dialing.

Select Menu and then Edit Numbers.

Select Menu and then Add.

Enter the phone number or area code to which to restrict calling and select Done.

Repeat steps 4, 5, and 6 to add more numbers as necessary. You will be able to 
make and receive calls only to and from the numbers or area codes specified.

Many of your Wireless Data Services can be used internationally just as you use them in 
the U.S. on the Nextel National Network. To activate your Wireless Data Services for use 
abroad, contact your Nextel sales representative. See sprint.com for a list of wireless 
data services you can use internationally and in which countries you can use them.

If you activate your Wireless Data Services for use in GSM countries (GPRS) you can 
set up a GPRS connection to gain access to your corporate network or the Internet on 
your Smartphone.

Before accessing your data services internationally for the first time, see “Create a 
GPRS connection” and “Connect to the Internet with a GPRS connection” on page 79.

Note: You are not required to enter a user name, password, primary DNS, secondary 

DNS, or IP address to create GPRS connection.

On the Home screen, select Start.

Select Settings and then Data Connections.