Business: Oi S.A., through its subsidiaries, provides integrated telecommunication service for residential customers, companies, and governmental agencies in Brazil. The company offers fixed-line and mobile telecommunication services; data transmission services, such as broadband access services; Internet service provider (ISP) services; and other services. Its services include local fixed-line services comprising installation, monthly subscription, metered services, collect calls, and supplemental local services; domestic and international long distance services; 2G and 3G mobile telecommunication services; interconnection services; traffic transportation services; public telephone services; value-added services, which include voice, text, and data applications consisting of voicemail, caller ID, personalization, short message service subscription, chat, mobile television, and location-based services and applications; and voice services to corporate customers, as well as operates an Internet portal under the brand name ‘iG’. The company’s data transmission services consist of asymmetric digital subscriber line services; lease of dedicated digital and analog lines to other telecommunication service providers, ISPs, and corporate customers; and Internet protocol solutions, as well as other data transmission services. As of December 31, 2010, it had approximately 266,100 public telephones, and its access network served approximately 7.2 million fixed-line subscribers and approximately 1.9 million asymmetric digital subscriber line subscribers. The company was formerly known as Brasil Telecom S.A. and changed its name to Oi S.A. in February 2012. Oi S.A. was founded in 1963 and is based in Rio de Janeiro, Brazil.