Main FeaturesLimited Warranty: 1 YearManufacturer/Supplier: netTALK.com, IncManufacturer Part Number: DUO WI-FIManufacturer Website Address: Brand Name: netTALKProduct Model: DUO WI-FIProduct Name: DUO WI-FI VoIP GatewayMarketing Information: Fire your phone company! Make free calls to the US amp; Canada and ultra-low cost international calls from anywhere in the world. The netTALK DUO is a sleek and small VoIP telephone device that connects directly to your router or computer, creating a fax-friendly phone line with free calling features such as 411 Directory Assistance, Enhanced 911, Visual Voicemail (voicemail to e-mail), call waiting, conference calling, a videophone application, and conference bridge. Calls from DUO to DUO are free from anywhere in the world. With no contracts or monthly bills, the DUO includes the first year of service and each additional year. Also, you do not need to connect the device to a computer, which results in significant energy and cost savings.Product Type: VoIP GatewayUSB: YesForm Factor: Desktop