Upgraded 3G network in your area?

in iPhone edited January 2014
Does AT&T offer a map that shows where they upgraded to the newest 850mhz 3G spec? I live in

Milwaukee & the reception at work is very inconsistent. My hope is that the 850mhz signal will

penetrate into the building that I work at. It still bugs me that I have no signal at all in the elevator,

cafeteria & parking structure but my coworkers seem to have no problems making or receiving calls.


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