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AT&T & Verizon's Artificial Wireless Fiefdoms: Interoperability is the Enemy ·
The arrival of the LTE/4G wireless standard in the United States, and its adoption by the country’s two largest super-carriers AT&T and Verizon was supposed to open the door for true equipment interoperability, allowing customers to take devices purchased from one carrier to another. In the past, incompatible network standards (GSM – AT&T and CDMA …