There are two competitors in the industry worldwide mobile phone networks, GSM and CDMA. CDMA (Code Division Multiple Access) is working in the United States through Verizon Wireless. GSM (Global System for Mobile Communications), slightly more than his opponent, and he developed a GPRS (Global package) technology. GPRS is increasingly becoming very popular because of its affiliation to GSM. Most network services in the U.S. using this technology. In fact, about 80% of the global market for mobile phones to connect via GSM, because that is the most common standard.

As a result, the popularity of GSM », organizing trade was founded, the Association of GSM, including mobile operators and handset manufacturers around the world. The GSM Association estimates more than 4.3 billion people in over 212 countries is a GSM-users. This technology is designed 2G mobile phone systems (second generation), which makes it possible to store more data in the system of data exchange. GSM is also developing new methods of rapid communication across the world via short message system (SMS). GPRS technology soon became the EDGE (Enhanced Data rates for GSM), a fast way to transfer data. The greatest advantage of GSM technologies mature GSM network is more stable, its users less signal damage in the building, type of network used in all parts of the world making roaming more affordable.

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