Mobile Phone Industry in the United States
History of mobile phones, Ameritech, AT&T Mobility, Sprint Nextel, T-Mobile USA, Verizon Wireless
978-613-6-66637-2
6136666375
116
2011-08-16
39,00 €
eng
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Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. The Mobile phone industry in the United States is covered in this article. Mobile phones are usually called "cell phones" in the United States. In 1983, Ameritech launched the first genaration mobile phone service (1G) in Chicago. There are now four companies in the United States that offer nationwide mobile phone service. Two of these (AT&T and T-Mobile USA) provide service using the GSM standard, while the other two (Verizon and Sprint) principally use CDMA.
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Elektronik, Elektrotechnik, Nachrichtentechnik
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