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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. Timeline of the telephone - Wikipedia

    en.wikipedia.org/wiki/Timeline_of_the_telephone

    11 February 1876: Elisha Gray invents a liquid transmitter for use with a telephone, but he did not make one. 14 February 1876 about 9:30 am: Gray or his lawyer brings Gray's patent caveat for the telephone to the Washington, D.C. Patent Office (a caveat was a notice of intention to file a patent application.

  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: 2017 31,000 (2021) US$4.140 billion (2021) 22 countries (2021)

  5. 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

  6. History of the telephone - Wikipedia

    en.wikipedia.org/wiki/History_of_the_telephone

    Several other controversies also surround the question of priority of invention for the telephone. The Elisha Gray and Alexander Bell telephone controversy considers the question of whether Bell and Gray invented the telephone independently and, if not, whether Bell stole the invention from Gray. This controversy is narrower than the broader ...

  7. Call center industry in the Philippines - Wikipedia

    en.wikipedia.org/wiki/Call_center_industry_in...

    A Teletech BPO site in Cainta, Rizal. Call centers in the Philippines began as providers of email response and managing services then broadened to industrial capabilities for almost all types of customer relations, ranging from travel services, technical support, education, customer care, financial services, online business-to-customer support, and online business-to-business support.

  8. Telephone - Wikipedia

    en.wikipedia.org/wiki/Telephone

    Most telephones also contain an alerting feature, such as a ringer or a visual indicator, to announce an incoming telephone call. 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 ...

  9. Switchboard operator - Wikipedia

    en.wikipedia.org/wiki/Switchboard_operator

    Each pair of plugs was part of a cord circuit with a switch associated that let the operator participate in the call or ring the circuit for an incoming call. Each jack had a light above it that lit when the customer's telephone receiver was lifted (the earliest systems required the customer to hand-crank a magneto to alert the central office ...