Telephone exchange

noun

Definitions

Noun
  1. 1
    Any equipment that establishes connections between telephones.
  2. 2
    a workplace that serves as a telecommunications facility where lines from telephones can be connected together to permit communication wordnet
  3. 3
    The rooms or building housing such equipment (a central office, as it was termed by the Bell System). historical
  4. 4
    A local or locoregional network of such switched connections, of which a central office was the hub; the local company formed to create and maintain this network and its central office. historical

    "This valley didn't have a telephone exchange until 1903, when the leading citizens of this town invested in a company to establish one."

  5. 5
    The portion of a telephone number representing that network, among the other networks of the larger system: the central office code. In the North American Numbering Plan, this is the "555" portion of "+1-212-555-6789".

    "Holonyms: telephone number, phone number"

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