GSM, a global system for mobile communication is a standard developed to illustrate protocols for second generation (2G) mobile phones enabled with digital cellular networks. GSM standards were launched as a substitute for the first generation (1G) analog cellular network. This was upgraded over time in order to include data communication such as circuit-switched transport and then packet data transport via GPRS (General Packet Radio Services) and EDGE (Enhanced Data rates for GSM Evolution ... Read more
