enow.com Web Search

  1. Ad

    related to: automatic telephone switching system reviews best sellers

Search results

  1. Results from the WOW.Com Content Network
  2. List of telephone switches - Wikipedia

    en.wikipedia.org/wiki/List_of_telephone_switches

    EMS-1 (The ITEC Electronic Modular Switch is an electronic direct control switching system. The modules are combined to form a complete switch or any of the modules can be added to your present Step-by-Step Systems.) EMS-2 (The EMS-2 RURAL SWITCH is a stored program control analog switch designed to be cost-effective in small exchanges.

  3. Strowger switch - Wikipedia

    en.wikipedia.org/wiki/Strowger_switch

    The Strowger switch is the first commercially successful electromechanical stepping switch telephone exchange system. It was developed by the Strowger Automatic Telephone Exchange Company founded in 1891 by Almon Brown Strowger. Because of its operational characteristics, it is also known as a step-by-step (SXS) switch.

  4. Automatic switching system - Wikipedia

    en.wikipedia.org/wiki/Automatic_switching_system

    In data communications, an automatic switching system is a switching system in which all the operations required to execute the three phases of Information transfer transactions are automatically executed in response to signals from a user end-instrument.

  5. GTD-5 EAX - Wikipedia

    en.wikipedia.org/wiki/GTD-5_EAX

    The GTD-5 EAX (General Telephone Digital Number 5 Electronic Automatic Exchange) is the Class 5 telephone switch developed by GTE Automatic Electric Laboratories. This digital central office telephone circuit switching system is used in the former GTE service areas and by many smaller telecommunications service providers .

  6. Panel switch - Wikipedia

    en.wikipedia.org/wiki/Panel_switch

    The Panel Machine Switching System is a type of automatic telephone exchange for urban service that was used in the Bell System in the United States for seven decades. The first semi-mechanical types of this design were installed in 1915 in Newark, New Jersey , and the last were retired in the same city in 1983.

  7. Telephone exchange - Wikipedia

    en.wikipedia.org/wiki/Telephone_exchange

    A telephone exchange, also known as a telephone switch or central office, is a crucial component in the public switched telephone network (PSTN) or large enterprise telecommunications systems. It facilitates the interconnection of telephone subscriber lines or digital system virtual circuits, enabling telephone calls between subscribers.

  8. Class-5 telephone switch - Wikipedia

    en.wikipedia.org/wiki/Class-5_telephone_switch

    A Class-5 telephone switch is a telephone exchange in the public switched telephone network (PSTN) that directly serves subscribers and manages subscriber calling features. Class-5 services include basic dial-tone , calling features , and additional digital and data services to subscribers connected to a local loop .

  9. Class-4 telephone switch - Wikipedia

    en.wikipedia.org/wiki/Class-4_telephone_switch

    The Lucent 5ESS, a class-5 switching system, is sometimes used as a class-4 switch (or as a mixed class-4/5 switch) in markets that are too small to justify a 4ESS switch. The Nortel DMS-250 , a larger variant of the DMS-100 , is a popular competitor to Lucent's 4ESS, especially among telephone companies that were not previously a part of AT&T.

  1. Ad

    related to: automatic telephone switching system reviews best sellers