AT&T today confirmed that it's starting a public trial of its 3G MicroCell home router. Company spokesman Seth Bloom acknowledged that the carrier is already offering service in Charlotte, North Carolina that gives users unlimited calling on the in-home device and lets devices without Wi-Fi use their already unlimited data plans on a more reliable cellular link. As with other femtocells, it works by creating a local, secure cellular hotspot that uses an existing home Internet connection to bridge to the phone network.
