The AT&T 3G MicroCell is AT&T's version of a femtocell for VoIP calls. It is used when in-home cell phone coverage is poor or non-existent. The MicroCell uses your GPS coordinates and internet connection to connect to AT&T for cellular calls. The MicroCell is purchased through AT&T or authorized corporate stores and there is no addtional monthly charges unless you opt for unlimited coverage. Your usual monthly cell phone charges remain the same.
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