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Atento S.A., together with its subsidiaries, provides customer relationship management business process outsourcing services and solutions in Brazil, the Americas, Europe, the Middle East, and Africa. It offers a range of front and back-end services, including sales, customer care, technical support, collections, and back office. The company serves clients primarily in the telecommunications, financial services, consumer goods, retail, public administration, healthcare, travel, transportation, logistics, and technology and media sectors. It provides its services and solutions through digital channels, which include SMS, email, chats, social media and apps, and others, as well as through voice. The company was formerly known as Atento Floatco S.A. Atento S.A. was founded in 1999 and is based in Luxembourg.

Maxcom Telecomunicaciones SA de CV operates as an integrated telecommunication service operating company. The firm provides widespread voice and data services to residential and small and medium sized business customers in metropolitan markets in Mexico. It also offers local and long-distance voice, data, dedicated, and dial-up Internet access, public telephony, voice over Internet Protocol telephony, and paid television. The company was founded on February 28, 1996 and is headquartered in Mexico City, Mexico.

Oi S.A., together with its subsidiaries, provides telecommunication services in Brazil and internationally. The company offers fixed telephony services; domestic and international long-distance services; and maintenance and repair services. It also provides call center and telemarketing, Internet, network, and Wi-Fi Internet services; and financial, and payment and credit system services, as well as consulting services. In addition, it engages in the investment management activities. 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 1998 and is headquartered in Rio de Janeiro, Brazil.

Otelco Inc. provides a range of telecommunications services on a retail and wholesale basis. It offers local services, including voice lines that provide local dial tone and calling features, such as caller identification, call waiting, call forwarding, and voicemail; long distance services; billing and payments; and directory advertising services. The company also provides network access services comprising the origination, transportation, and termination of calls of long distance, wireless, and other interexchange carriers; digital high-speed data lines and ancillary services, such as web hosting and computer virus protection; and basic, digital, high-definition, digital video recording, and pay per view cable television services. In addition, it offers Internet protocol television; wireless security systems and system monitoring services; and private/hybrid cloud hosting services, as well as consulting and professional IT engineering services for mission-critical software applications for small and mid-sized companies. Further, the company rents fiber to transport data and other telecommunications services. It primarily serves business and residential customers residing in and adjacent to the exchanges in Alabama, Maine, Massachusetts, Missouri, Vermont, and West Virginia; and business customers in Maine and New Hampshire. The company was founded in 1998 and is based in Oneonta, Alabama.