Telecom Argentina S.A., together with its subsidiaries, provides telecommunication services to residential customers, businesses, and governmental agencies in Argentina and internationally. It operates in two segments, Fixed Telephony and Mobile Services. The Fixed Telephony segment provides local fixed telephony, public telephony, domestic and international long-distance telephony, domestic and international point-to-point link, domestic and international telex, data transmission, videoconferencing, and broadcasting signal services; additional services, including call forwarding, call waiting, three-way calling, itemized billing, and voicemail; and Internet access in Argentina. It also sells prepaid calling cards and modems; installs local access lines; and provides interconnection services to other local service providers and long-distance carriers. The Mobile Services segment provides mobile telecommunication services, including airtime, roaming, calls termination, and value-added services, such as call waiting, call forwarding, three-way calling, voicemail, short message systems, and other miscellaneous cellular and PCS services through cellular and PCS networks in Argentina; mobile radio communication services in the Federal District and Greater Buenos Aires areas; and PCS services, data transmission and videoconferences services, and Internet access in Paraguay. It also sells prepaid calling cards; and mobile handsets to customers, agents, and other third-party distributors. Telecom Argentina S.A. also engages in the construction of networks under contracts. The company serves approximately 4.1 million voice customers. As of December 31, 2011, it served 20.3 million mobile customers; 1,550,000 ADSL customers; and 4,057,000 fixed customer lines. The company was founded in 1990 and is based in Buenos Aires, Argentina. As of April 4, 2007, Telecom Argentina S.A. operates as a subsidiary of Nortel Inversora S.A.

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