T-Mobile is one of the world's leading companies in mobile communications. As one of Deutsche Telekom's three strategic business units, T-Mobile concentrates on the most dynamic markets in Europe and the United States. Almost 112 million mobile customers were served by companies of the Deutsche Telekom group by June 30, 2007. The common technology platform is based on GSM, the world's most successful digital wireless standard. This also makes T-Mobile the only mobile communications provider with a seamless transatlantic service.
