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T-Mobile, AT&T, Verizon and Sprint have collectively agreed to fund the entire upgrade related to the design and construction of a next-generation Distributed Antenna System capable of supporting the latest 4G wireless networks and mobile devices on the Chicago Transit Authority's system.
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Allows users to make and receive cell phone calls, send text messages, stream music and play online mobile games. It also enables security services such as E911 that allow dispatchers to know when a call is being placed from an underground platform and the forthcoming Help Point Intercom system.
Read More →Installation and testing of AT&T's base equipment - comprised of amplifiers, transmitters and receivers - within the subway will take place over the next several months.
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