Establishing a connection with destination networks

Destination networks, also known as Service Network Access Points (SNAPs) avoid the connectivity problems that are related to the access point being fixed for the duration of the data connection. With the availability of WLAN and other data bearers, the number of access points has grown considerably. With WLAN, the availability of an access point can change frequently. A fixed access point in selection often leads to a poor access point choice. Because the network environment is now more dynamic, you can have either a safe but slow connection, or a fast but unreliable connection. In practice this means that the application is either stuck with using GPRS or the user must continuously change the settings to point to the WLAN access point that happens to be available. A fixed access point leads to non-optimal usage of available connections, especially with applications that use long-lasting data connections.

1. Defining Connection Management Items
   
2. Prompting the user to select a destination network
   
3. Starting the Connection through the Destination Network
   

• Defining Connection Management Items
  Your application should define the connection management items (destination networks, access points, default connection, and always ask) it supports and show only the supported items in the UI. In this example, the application supports default connection, always ask, and destination networks. Access points (if supported) of a certain destination network can be seen under the Options menu when the destination network is highlighted.
• Prompting the User to Select a Destination Network
  If there is no connection specified in the connection setup and no default connection has been defined, your application can prompt the user to select the connection.
• Starting the connection through the destination network
  After you have selected the destination network to be used, you can open the data connection.