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  2. Operator assistance - Wikipedia

    en.wikipedia.org/wiki/Operator_assistance

    Operator assistance refers to service provided by a telephone operator to the calling party of a telephone call. This can include telephone calls made from pay phones, calls placed station-to-station, person-to-person, or collect, third-number calls, calls billed to credit cards, and certain international calls which cannot be dialed directly.

  3. Metro by T-Mobile - Wikipedia

    en.wikipedia.org/wiki/Metro_by_T-Mobile

    Metro by T-Mobile. Metro by T-Mobile (formerly known as MetroPCS and also simply known as Metro) is an American prepaid virtual wireless service provider and brand owned by T-Mobile US. It previously operated the fifth largest mobile telecommunications network in the United States using code-division multiple access (CDMA).

  4. Call detail record - Wikipedia

    en.wikipedia.org/wiki/Call_detail_record

    A call detail record ( CDR) is a data record produced by a telephone exchange or other telecommunications equipment that documents the details of a telephone call or other telecommunications transactions (e.g., text message) that passes through that facility or device. The record contains various attributes of the call, such as time, duration ...

  5. Switchboard operator - Wikipedia

    en.wikipedia.org/wiki/Switchboard_operator

    A telephone switchboard is a device that allows telephone lines to be interconnected, enabling the routing of calls between different phones or phone networks. [17] The switchboard operator was a person who manually connected calls by plugging and unplugging cords on the switchboard.

  6. Direct distance dialing - Wikipedia

    en.wikipedia.org/wiki/Direct_Distance_Dialing

    History. The first direct-dialed long-distance telephone calls were possible in the New Jersey communities of Englewood and Teaneck.Customers of the ENglewood 3, ENglewood 4 and TEaneck 7 exchanges, who could already dial telephone numbers in the New York City area, could place calls to eleven major cities across the United States by dialing the three-digit area code and the seven-digit ...

  7. List of telephony terminology - Wikipedia

    en.wikipedia.org/wiki/List_of_telephony_terminology

    ACD - Automatic Call Distribution; Articulation score; B. Blue box - a device that was used to bypass the normal long-distance call switching tones typically used to obtain free calls. C. Call originator - (or calling party, caller or A-party) a person or device that initiates a telephone call by dialling a telephone number.

  8. AT&T service restored after nationwide outage. Feds are ... - AOL

    www.aol.com/call-cellphone-outage-affecting-911...

    Around 9 a.m., AT&T had more than 73,000 reported outages, Cricket Wireless had nearly 13,000, Verizon had over 4,000 and T-Mobile had more than 2,000, Down Detector reported. The service ...

  9. Martin Cooper (inventor) - Wikipedia

    en.wikipedia.org/wiki/Martin_Cooper_(inventor)

    On April 3, 1973, he placed the first public call from a handheld portable cell phone while working at Motorola, from a Manhattan sidewalk to his counterpart at competitor Bell Labs. [4] [5] Cooper reprised the first handheld cellular mobile phone (distinct from the car phone ) in 1973 and led the team that re-developed it and brought it to ...

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