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  2. Call centre - Wikipedia

    en.wikipedia.org/wiki/Call_centre

    The contact center is a central point from which all customer contacts are managed. Through contact centers, valuable information can be routed to the appropriate people or systems, contacts can be tracked, and data may be gathered. It is generally a part of the company's customer relationship management infrastructure. The majority of large ...

  3. History of mobile phones - Wikipedia

    en.wikipedia.org/wiki/History_of_mobile_phones

    In 1925, the company Zugtelephonie AG was founded to supply train-telephony equipment and, in 1926, telephone service in trains of the Deutsche Reichsbahn and the German mail service on the route between Hamburg and Berlin was approved and offered to first-class travelers. [4] Karl Arnold 1926 drawing of public use of mobile telephones.

  4. Customer Service Assurance - Wikipedia

    en.wikipedia.org/wiki/Customer_Service_Assurance

    Customer Service Assurance (CSA) in telecom and Internet services means the collection of Communications Service Provider (CSP) customer usage information from all practical sources including network traffic, network devices, content servers, management databases and user devices to ensure customer service quality is consistent with CSP ...

  5. Prepaid mobile phone - Wikipedia

    en.wikipedia.org/wiki/Prepaid_mobile_phone

    A prepaid mobile device, also known as a pay-as-you-go (PAYG), pay-as-you-talk, pay and go, go-phone, prepay, or burner phone, is a mobile device such as a phone for which credit is purchased in advance of service use. The purchased credit is used to pay for telecommunications services at the point the service is accessed or consumed.

  6. TracFone Wireless - Wikipedia

    en.wikipedia.org/wiki/TracFone_Wireless

    TracFone Wireless, Inc. (TFWI) was an American wireless service provider.It was a mobile virtual network operator offering prepaid and no-contract service on the AT&T Mobility, T-Mobile US, and Verizon networks [2] under multiple brands, including TracFone, Net10 Wireless, GoSmart Mobile, Page Plus Cellular, SafeLink Wireless, Simple Mobile, Total Wireless, and Straight Talk Wireless (in ...

  7. Telephone - Wikipedia

    en.wikipedia.org/wiki/Telephone

    An old rotary dial telephone AT&T push button telephone made by Western Electric, model 2500 DMG black, 1980. A telephone, colloquially referred to as a phone, is a telecommunications device that permits two or more users to conduct a conversation when they are too far apart to be easily heard directly.

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