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  2. Call centre - Wikipedia

    en.wikipedia.org/wiki/Call_centre

    The term "call center" was first published and recognised by the Oxford English Dictionary in 1983. The 1980s saw the development of toll-free telephone numbers to increase the efficiency of agents and overall call volume. Call centers increased with the deregulation of long-distance calling and growth in information-dependent industries. [11]

  3. Teleperformance - Wikipedia

    en.wikipedia.org/wiki/Teleperformance

    In 2010, Teleperformance acquired Scottish outsourcing call center beCogent for £35 million. [14] It ceased operations in December 2021 mainly due to the impact of the COVID-19 pandemic and remote work. [15] By 2013 Teleperformance had six contact centers in Tunisia. [16] In 2013, Teleperformance acquired full control of TLS Contact. [17]

  4. List of call centre companies - Wikipedia

    en.wikipedia.org/wiki/List_of_call_centre_companies

    Company Founded Employees Revenue Locations Atento: 1999 154,000 Concentrix: 1983 290,000+ US$5.3 billion (2020) Conduent: 3 January 2017 31,000 (2021) US$4.140 billion (2021) 22 countries (2021)

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  6. Call centre industry in India - Wikipedia

    en.wikipedia.org/wiki/Call_centre_industry_in_India

    A call centre is an office with the capacity to field many telephone calls for a company. [1] Types of call centre work can include customer service and telemarketing. Factors that have made India attractive as a hub of call centre work from the English-speaking world include its convenient time zone, low labour costs, and large English-speaking popu

  7. Timeline of the telephone - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_the_telephone

    25 April 1935: First telephone call around the world by wire and radio. [23] 1937: The Western Electric type 302 telephone becomes available for service in the United States. 8 December 1937: Opening of fourth transcontinental telephone line. [23] 1941: Multi-frequency dialing introduced for operators in Baltimore, Maryland

  8. Telephone exchange - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange

    A wire center is the area served by a particular switch or central office. A concentrator is a device that concentrates traffic, be it remote or co-located with the switch. An off-hook condition represents a circuit that is in use, e.g., when a telephone call is in progress.

  9. Telephone - Wikipedia

    en.wikipedia.org/wiki/Telephone

    Telephone calls are initiated most commonly with a keypad or dial, affixed to the telephone, to enter a telephone number, which is the address of the call recipient's telephone in the telecommunications system, but other methods existed in the early history of the telephone.