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  2. Telephony - Wikipedia

    en.wikipedia.org/wiki/Telephony

    If the called station answered, the operator disconnected their headset and completed the station-to-station circuit. Trunk calls were made with the assistance of other operators at other exchangers in the network. Until the 1970s, most telephones were permanently wired to the telephone line installed at customer premises.

  3. 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 ...

  4. List of telephony terminology - Wikipedia

    en.wikipedia.org/wiki/List_of_telephony_terminology

    Call originator - (or calling party, caller or A-party) a person or device that initiates a telephone call by dialling a telephone number. Call waiting - a system that notifies a caller of another incoming telephone call by sounding a sound in the earpiece. Called party - (or callee or B-party) Caller; Calling party; Conference call (multi ...

  5. Portal:Telephones - Wikipedia

    en.wikipedia.org/wiki/Portal:Telephones

    A payphone (alternative spelling: pay phone or pay telephone or public phone) is typically a coin-operated public telephone, often located in a telephone booth or in high-traffic public areas. Prepayment is required by inserting coins or telephone tokens , swiping a credit or debit card, or using a telephone card .

  6. Telephone call - Wikipedia

    en.wikipedia.org/wiki/Telephone_call

    A telephone call or telephone conversation (or telcon [1] [a]), also known as a phone call or voice call (or simply a call), is a connection over a telephone network between the called party and the calling party. Telephone calls started in the late 19th century, initially relying on analog systems.

  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 enables two or more users to conduct a conversation when they are too far apart to be easily heard directly.

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    mail.aol.com

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  9. Telecommunications device for the deaf - Wikipedia

    en.wikipedia.org/wiki/Telecommunications_device...

    The printer records the conversation. The specific GA and SK keys allow for speedier use of common abbreviations. A telecommunications device for the deaf (TDD) is a teleprinter, an electronic device for text communication over a telephone line, that is designed for use by persons with hearing or speech difficulties.