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packet data connection can be closed when it is not needed by any 
application. 

If there are no packet data services available and you have chosen 

, the phone periodically tries to establish a packet data 

connection.

 — The access point name is needed when you want to use 

your phone as a modem with your computer. 

The data call settings affect all access points that use a GSM data call.

 — to set the data call to disconnect automatically after a 

time-out if there is no activity. To enter a time-out, select 

, 

and enter the time in minutes. If you select 

, the data call is 

not disconnected automatically.

View and edit session initiation protocol (SIP) profiles.

Certain functions, such as web browsing and multimedia messaging, 
may require configuration settings. You may receive the settings from 
your service provider. See “Configuration settings,” p. 14.

To delete a configuration, scroll to the configuration, and select 

> 

.

With the access point name control service, you can restrict the use of 
packet data access points. This setting is only available if your SIM card 
supports the service. To change the settings, you need the PIN2 code.

To view and edit settings of applications installed to your phone, select 

> 

> 

> 

.