EDGE stands for "Enhanced Data rates for GSM Evolution." It is a technology that improves the data transmission speed of GSM networks, allowing for faster internet access on mobile devices. By using advanced modulation techniques, EDGE can transmit data more efficiently than its predecessor, GPRS. EDGE is often referred to as 2.5G, as it represents a step between the older 2G GSM networks and the more advanced 3G networks. This technology enables users to browse the web, send emails, and use applications more effectively, enhancing the overall mobile experience.