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  2. Telephone jack and plug - Wikipedia

    en.wikipedia.org/wiki/Telephone_jack_and_plug

    telephone line to phone cord: The wall jack. This connection is the most standardized, and often regulated as the boundary between an individual's telephone and the telephone network. In many residences, though, the boundary between utility-owned and household-owned cabling is a network interface on an outside wall known as the demarcation ...

  3. Modular connector - Wikipedia

    en.wikipedia.org/wiki/Modular_connector

    The first types of small modular telephone connectors were created by AT&T in the mid-1960s for the plug-in handset and line cords of the Trimline telephone. [1] Driven by demand for multiple sets in residences with various lengths of cords, the Bell System introduced customer-connectable part kits and telephones, sold through PhoneCenter stores in the early 1970s. [2]

  4. Tip and ring - Wikipedia

    en.wikipedia.org/wiki/Tip_and_ring

    Some rural switching systems were designed to apply range extenders internally and thus share a few extenders among many lines, while for other lines, one extender was applied externally per line. To ring the telephone to alert a subscriber to an incoming call, the central office superimposes a 20 Hz AC signal, at a nominal voltage of 105 volts ...

  5. Analog telephone adapter - Wikipedia

    en.wikipedia.org/wiki/Analog_telephone_adapter

    A typical analog telephone adapter for connecting an analog phone to a VoIP provider Wikimedia Commons has media related to Analog telephony adapter . An analog telephone adapter ( ATA ) or FXS gateway is a device for connecting traditional analog telephones, fax machines, and similar customer-premises devices to a digital telephone system or a ...

  6. AT&T Wants To Cut the Cord on Your Landline Phone - AOL

    www.aol.com/news/2012-11-13-att-landline-phone...

    In AT&T's third-quarter earnings report, the company announced it will invest $14 billion in wireless and wireline IP broadband networks, where, including managed IT services, the company expects ...

  7. Registered jack - Wikipedia

    en.wikipedia.org/wiki/Registered_jack

    Establishes a bridged connection for one telephone line (6P4C if power on second pair) In computers, it is often used for dial-up internet access. [7] RJ12(C/W) 6P6C: Establishes a bridged connection for one telephone line with key telephone system control ahead of line circuit RJ13(C/W) 6P4C: Similar to RJ12, but behind the line circuit RJ14(C ...

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