Originally known as an Access Point Base Station, Femtocell is a small cellular base station that uses a broadband internet connection to provide 3G connectivity. Ideal for areas with lackluster coverage such as rural, underground, or any area with otherwise bad reception. The system typically support 2 to 4 active devices at a time.
AT&T will be charging around $20 per month for unlimited calls via the 3G Microcell system and has begun a trial in the test market of Charlotte, North Carolina. Users can also buy the unit outright and pay for minutes with their pre-existing plan. Check out AT&T’s 3G MicroCell information page for more details.