Anglų skaidrės. University of applied sciences. T-Mobile Prepared by. T-Mobile International AG. What is T-Mobile? T-Mobile operates GSM, UMTS and LTE based cellular networks in Europe. In 1985 launched the analog first-generation C-Netz. History. In 2010, T-Mobile UK became part of joint venture with Orange. Marketing. Beginning in. Sponsorships. T-Mobile‘s parent company, Deutsche Telekom. T-Mobile co-sponsored Everton. Thank you for your attention!