When.com Web Search

  1. Ads

    related to: business telephone exchange
  2. ringcentral.com has been visited by 10K+ users in the past month

    • Customer Stories

      See How RingCentral™ Has Improved

      Business Communications.

    • RingCX

      AI-First Contact Center.

      Simple To Use & Easy To Deploy.

Search results

  1. Results From The WOW.Com Content Network
  2. Business telephone system - Wikipedia

    en.wikipedia.org/wiki/Business_telephone_system

    A business telephone system is a telephone system typically used in business environments, encompassing the range of technology from the key telephone system (KTS) to the private branch exchange (PBX). A business telephone system differs from an installation of several telephones with multiple central office (CO) lines in that the CO lines used ...

  3. 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.

  4. Telephone exchange names - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange_names

    Telephone numbers listed in 1920 in New York City having three-letter exchange prefixes. In the United States, the most-populous cities, such as New York City, Philadelphia, Boston, and Chicago, initially implemented dial service with telephone numbers consisting of three letters and four digits (3L-4N) according to a system developed by W. G. Blauvelt of AT&T in 1917. [1]

  5. List of telephone switches - Wikipedia

    en.wikipedia.org/wiki/List_of_telephone_switches

    Business Phone 128i; Business Phone 250; CP-400 (crossbar) CPP (Media Gateway) MD110; ... The last HS 52 A and B exchanges were in operation until the end of 1997 ...

  6. Telephone switchboard - Wikipedia

    en.wikipedia.org/wiki/Telephone_switchboard

    A telephone switchboard is a device used to connect circuits of telephones to establish telephone calls between users or other switchboards. The switchboard is an essential component of a manual telephone exchange , and is operated by switchboard operators who use electrical cords or switches to establish the connections.

  7. IP PBX - Wikipedia

    en.wikipedia.org/wiki/IP_PBX

    An IP PBX ("Internet Protocol private branch exchange") is a system that connects telephone extensions to the public switched telephone network (PSTN) and provides internal communication for a business.

  1. Ad

    related to: business telephone exchange