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  2. Local loop - Wikipedia

    en.wikipedia.org/wiki/Local_loop

    Local Loop. In telephony, the local loop (also referred to as the local tail, subscriber line, or in the aggregate as the last mile) is the physical link or circuit that connects from the demarcation point of the customer premises to the edge of the common carrier or telecommunications service provider's network.

  3. Network interface device - Wikipedia

    en.wikipedia.org/wiki/Network_interface_device

    In telecommunications, a network interface device (NID; also known by several other names) is a device that serves as the demarcation point between the carrier's local loop and the customer's premises wiring. Outdoor telephone NIDs also provide the subscriber with access to the station wiring and serve as a convenient test point for ...

  4. Backhaul (telecommunications) - Wikipedia

    en.wikipedia.org/wiki/Backhaul_(telecommunications)

    This can be a local WAN connection. Cell phones communicating with a single cell tower constitute a local subnetwork; the connection between the cell tower and the rest of the world begins with a backhaul link to the core of the internet service provider's network (via a point of presence). A backhaul may include wired, fiber optic and wireless ...

  5. DSLAM - Wikipedia

    en.wikipedia.org/wiki/DSLAM

    Local loop: the telephone company wires from a customer to the telephone exchange or to a serving area interface, often called the "last mile" (LM). Telephone exchange: Main distribution frame (MDF): a wiring rack that connects outside subscriber lines with internal lines. It is used to connect public or private lines coming into the building ...

  6. Public switched telephone network - Wikipedia

    en.wikipedia.org/wiki/Public_switched_telephone...

    However analog two-wire circuits are still used to connect the last mile from the exchange to the telephone in the home (also called the local loop). To carry a typical phone call from a calling party to a called party , the analog audio signal is digitized at an 8 kHz sample rate with 8-bit resolution using a special type of nonlinear pulse ...

  7. Loop management system - Wikipedia

    en.wikipedia.org/wiki/Loop_Management_System

    Although local loop unbundling is a standard process for an incumbent , issues remain to be solved in the local loop management process. For a CLEC which borrows lines from ILEC for DSL services provisioning process, a local loop is the most critical (and the most weak) point because of reduced management of this vital part of the network.

  8. T-carrier - Wikipedia

    en.wikipedia.org/wiki/T-carrier

    The farther the CO and POP, the more the loop costs. The loop price has several components built into it, including the mileage calculation (performed in V/H coordinates, not standard GPS coordinates) and the telco piece. Each local Bell operating company—namely Verizon, AT&T Inc., and Qwest—charge T-carriers different price per mile rates ...

  9. Telephone exchange - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange

    A telephone exchange, telephone switch, or central office is a central component of a telecommunications system in the public switched telephone network (PSTN) or in large enterprises. It facilitates the establishment of communication circuits, enabling telephone calls between subscribers.