Time Warner Cable Inc., together with its subsidiaries, operates as a cable operator in the United States. It offers video, high-speed data, and voice services over its broadband cable systems to residential and business service customers. The company provides a range of video services, including video on demand and digital video recorder (DVR) services, as well as programming in three-dimensional format; residential high-speed data services with connection to the Internet; wireless mobile broadband services; and digital phone services to residential customers. It also offers residential voice service, digital home phone, and local and long distance calling throughout the United States, Canada, and Puerto Rico; Business Class Phone, a multi-line voice service, which provides various calling plans and other business features, such as call restrictions and three-way call transfer; and Business Class PRI for medium and enterprise-sized businesses and supports approximately 23 simultaneous voice calls on each two-way trunk line. In addition, the company provides video programming tiers and music services; high-speed data, networking, and transport services; and managed and outsourced information technology solutions and cloud services, as well as managed hosting, cloud, application, and messaging services. As of December 31, 2011, it served approximately 14.5 million residential and commercial customers in the New York State, the Carolinas, Ohio, southern California, and Texas. Time Warner Cable Inc. is based in New York, New York.