MIDP Networking and Serial Communications
MIDP target devices operate on a wide variety of wireless and wired networks with incompatible transport protocols. In addition, wireless networks have less bandwidth, more latency, and less stable connections than wired networks. The MIDP Specification version 2.0 must accommodate these differences and allow for future network technologies. To do so, MIDP uses standard network programming mechanisms and practices and takes advantage of the existing network infrastructure.
MIDP specifies that HTTP and HTTPS are required protocols for all devices. In addition, it defines APIs for optional protocols: datagrams, sockets, secure sockets, and serial communication ports. (See Chapter 16, "Secure Networking" for more information on the secure networking protocols.)