If you've been experiencing choppy voice quality or dropped calls from your mobile provider at your home or workplace, there are steps you can take to correct the problem. Cellular phones use radio signals to communicate, and like any other radio, signal propagation issues -- including topography, obstructions, distance to tower and interference -- affect quality. Femtocells are low-power cellular radio base stations that interface with the Internet -- a bit like a VoIP application.
Source: http://ectnews.com.feedsportal.com/c/34520/f/632000/s/23e07e3f/l/0L0Stechnewsworld0N0Crsstory0C762590Bhtml/story01.htm
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