NetTalk.com, Inc., a telephone company, provides, sells, and supplies commercial and residential telecommunication services in North America. Its services utilize voice over Internet protocol (VoIP) technology, session initiation protocol (SIP) technology, wireless fidelity technology, wireless maximum technology, marine satellite services technology, and other technologies. The company's principal products comprise DUO, DUO II, and DUO WIFI, which are analog telephone adapters that provide connectivity for analog telephones and faxes to home, home office, or corporate local area networks, as well as able to use advanced calling features, such as call forwarding, caller ID, 3-way calling, call holding, call retrieval, and call transfer. Its DUO products and their related services connect to analog telephone or private branch exchange for individuals, small businesses, and telecommuters. The company also provides CONNECT smartphone applications. NetTalk.com, Inc. sells its products through direct sales and retail brick and mortar channels. The company was formerly known as Discover Screens, Inc. and changed its name to NetTalk.com, Inc. in September 2008. NetTalk.com, Inc. was incorporated in 2006 and is based in Miami Gardens, Florida.