what was t-mobile called before it was t-mobile
T-Mobile US T-Mobile US traces its roots to the 1994 establishment of VoiceStream Wireless PCS as a subsidiary of Western Wireless Corporation. Spun off from parent Western Wireless on May 3, 1999, VoiceStream Wireless was purchased by Deutsche Telekom AG in 2001 for $35 billion and renamed T-Mobile USA, Inc. in July, 2002. In 2013, T-Mobile and MetroPCS finalized a merger of the two companies. The two companies began trading as T-Mobile US.[9][10][11][12]
History of mobile phones The Second World War made military use of radio telephony links. Hand-held radio transceivers have been available since the 1940s. Mobile telephones for automobiles became available from some telephone companies in the 1940s. Early devices were bulky, consumed high power, and the network supported only a few simultaneous conversations. Modern cellular networks allow automatic and pervasive use of mobile phones for voice and data communications.