Using a wireless service provider's Internet gateway
Most wireless service providers provide an Internet gateway that offers direct TCP/IP connectivity to the Internet. Some wireless service providers also provide a WAP gateway that allows HTTP connections to use the WAP protocol. A BlackBerry® Java® Application can use either of these gateways to connect to the Internet. If your application is for BlackBerry device users who are on a specific wireless network, using the wireless service provider's Internet gateway can often yield fast, and reliable connections. If your application is for users on a variety of wireless networks, testing your application against the different Internet gateways can be challenging. In this case, you should use the BlackBerry® Internet Service transport, and use the wireless service provider’s Internet gateway as a backup connection type if the BlackBerry Internet Service transport is not available.