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  2. 25-pair color code - Wikipedia

    en.wikipedia.org/wiki/25-pair_color_code

    When used for plain old telephone service (POTS), the first wire is known as the tip or A-leg (U.K.) conductor, and is usually connected to the positive side of a direct current (DC) circuit, while the second wire is known as the ring lead or B-leg (U.K.), and is connected to the negative side of the circuit. Neither of these two sides of the ...

  3. Two-wire circuit - Wikipedia

    en.wikipedia.org/wiki/Two-wire_circuit

    To communicate in both directions in the same wire pair, conversion between four-wire and two-wire was necessary, both at the telephone and at the central office. A hybrid coil accomplishes the conversion for both. At the central office, it is part of a four-wire terminating set, more often as part of a line card. A modern line card has no two ...

  4. Lifeline (FCC program) - Wikipedia

    en.wikipedia.org/wiki/Lifeline_(FCC_program)

    Lifeline is the Federal Communications Commission 's program, established in 1985, intended to make communications services more affordable for low-income consumers. Lifeline provides subscribers a discount on monthly telephone service purchased from participating providers in the marketplace. Subscribers can also purchase discounted broadband ...

  5. Party line (telephony) - Wikipedia

    en.wikipedia.org/wiki/Party_line_(telephony)

    A party line ( multiparty line, shared service line, party wire) is a local loop telephone circuit that is shared by multiple telephone service subscribers. [ 1][ 2][ 3] Party line systems were widely used to provide telephone service, starting with the first commercial switchboards in 1878. [ 4] A majority of Bell System subscribers in the mid ...

  6. 20 Best College Student Discounts and Deals for 2023

    www.aol.com/20-best-college-student-discounts...

    For a student software discount, check out Microsoft, which offers a 10% price reduction on select products. Students can also get Microsoft 365 Personal for 50% off , at $2.99 per month. All you ...

  7. British telephone socket - Wikipedia

    en.wikipedia.org/wiki/British_telephone_socket

    BS 6312 431A plug, colloquially a British Telecom 4-wire male plug. British telephone sockets were introduced in their current plug and socket form on 19 November 1981 by British Telecom to allow subscribers to connect their own telephones. The connectors are specified in British Standard BS 6312. [ 1][ 2][ 3] Electrical characteristics of the ...

  8. Telephone line - Wikipedia

    en.wikipedia.org/wiki/Telephone_line

    A telephone line or telephone circuit (or just line or circuit industrywide) is a single-user circuit on a telephone communication system. [ 1] It is designed to reproduce speech of a quality that is understandable. [ 2] It is the physical wire or other signaling medium connecting the user's telephone apparatus to the telecommunications network ...

  9. List of country calling codes - Wikipedia

    en.wikipedia.org/wiki/List_of_country_calling_codes

    Worldwide distribution of country calling codes. Regions are coloured by first digit. Country calling codes, country dial-in codes, international subscriber dialing (ISD) codes, or most commonly, telephone country codes are telephone number prefixes for reaching telephone subscribers in foreign countries or areas via international telecommunication networks.

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