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  2. Rate center - Wikipedia

    en.wikipedia.org/wiki/Rate_center

    Local number portability allows a number to be moved to a different carrier or a different wire center within the same rate center. [4] A landline provider typically will not allow a cross-town move to a different rate center under the same number at standard rates; possible alternatives include expensive foreign exchange service or a nomadic class of service such as voice over IP or a mobile ...

  3. Telephone number pooling - Wikipedia

    en.wikipedia.org/wiki/Telephone_number_pooling

    The La Fargeville rate center's local calling area is the same as neighboring Clayton, New York, yet there is a separate Verizon landline exchange for each village — likely as a historical artifact of an earlier era when telcos built many small, local stations.

  4. Telephone exchange - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange

    A wire center is the area served by a particular switch or central office. A concentrator is a device that concentrates traffic, be it remote or co-located with the switch. An off-hook condition represents a circuit that is in use, e.g., when a telephone call is in progress.

  5. Primary Rate Interface - Wikipedia

    en.wikipedia.org/wiki/Primary_Rate_Interface

    The Primary Rate Interface (PRI) is a telecommunications interface standard used on an Integrated Services Digital Network (ISDN) for carrying multiple DS0 voice and data transmissions between the network and a user. PRI is the standard for providing telecommunication services to enterprises and offices.

  6. Local access and transport area - Wikipedia

    en.wikipedia.org/wiki/Local_access_and_transport...

    Map of LATAs in the US. Local access and transport area (LATA) is a term used in U.S. telecommunications regulation.It represents a geographical area of the United States under the terms of the Modification of Final Judgment (MFJ) entered by the United States District Court for the District of Columbia in Civil Action number 82-0192 or any other geographic area designated as a LATA in the ...

  7. Telecommunications tariff - Wikipedia

    en.wikipedia.org/wiki/Telecommunications_tariff

    A telecommunications tariff is an open contract between a telecommunications service provider and the public, filed with a regulating body such as state and municipal Public Utilities Commissions and federal entities such as the Federal Communications Commission (FCC). [1]

  8. Today's Wordle Hint, Answer for #1275 on Sunday, December 15 ...

    www.aol.com/todays-wordle-hint-answer-1275...

    Hints and the solution for today's Wordle on Sunday, December 15.

  9. T-carrier - Wikipedia

    en.wikipedia.org/wiki/T-carrier

    The T-carrier is a hardware specification for carrying multiple time-division multiplexed (TDM) telecommunications channels over a single four-wire transmission circuit. It was developed by AT&T at Bell Laboratories ca. 1957 and first employed by 1962 for long-haul pulse-code modulation (PCM) digital voice transmission with the D1 channel bank.