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  2. Bell System - Wikipedia

    en.wikipedia.org/wiki/Bell_System

    The Bell System was a system of telecommunication companies, led by the Bell Telephone Company and later by the American Telephone and Telegraph Company (AT&T), that dominated the telephone services industry in North America for over one hundred years from its creation in 1877 until its antitrust breakup in 1983.

  3. Bell System | American telephone system | Britannica

    www.britannica.com/topic/Bell-System

    See all related content →. Bell System, a former American telephone system, governed by American Telephone & Telegraph Company (now AT&T Corporation; q.v.) and including Western Electric Company ( q.v. ), the system’s manufacturer; Bell Laboratories ( q.v. ), the research and development facility; and other departments and 22 operating companies. The system was dismantled in 1983, when the 22 operating companies were divested by AT&T under court order.

  4. Breakup of the Bell System - Wikipedia

    en.wikipedia.org/wiki/Breakup_of_the_Bell_System

    Cincinnati Bell. The breakup of the Bell System was mandated on January 8, 1982, by an agreed consent decree providing that AT&T Corporation would, as had been initially proposed by AT&T, relinquish control of the Bell Operating Companies, which had provided local telephone service in the United States. [1] This effectively took the monopoly that was the Bell System and split it into entirely separate companies that would continue to provide telephone service.

  5. Bell System History - The Bell System - Bell System Memorial

    bellsystemmemorial.com/bellsystem_history.html

    The Bell System, a.k.a. “Ma Bell” or simply “THE telephone company”, was not a "company" but rather an aggregate term for AT&T encompassing 24 Bell operating companies providing local exchange phone service, the AT&T Long Lines Division providing long distance connections, an equipment manufacturing arm known as Western Electric, and a research and development arm known as Bell Laboratories.

  6. Bell System Memorial Home Page

    www.bellsystemmemorial.com

    Bell System Directories Offer The Most Comprehensive Search Directory on. The Internet, and With International listings! Formerly... Structured cabling solutions for all business, telecom providers, construction companies, multi-dwelling units (condominiums, apartments), and single family homes.

  7. School Bell System | InformaCast | Intercom Systems for Schools

    www.singlewire.com/.../use-case/school-bell-system

    School Bell System Schedule pre-recorded notifications, such as school bells, shift changes, break reminders or safety alerts from a single interface and leverage existing analog overhead systems. Service Levels Solutions Testimonials Demo Pricing FAQ Benefits Cost savings and improved flexibility Send bell tones to existing analog overhead systems

  8. Automatic School Bell System – Timer Systems

    www.innovationwireless.com/products/automatic...

    Automatic school bell systems are critical to the daily operations of a K-12 school. The bell system is typically what will signal the start of the school day and the end of the school day. It can be a physical device, a bell or buzzer that operates on a contact relay to turn it on and off. The physical device can be a bell, a buzzer or basically any device for which when power is applied will activate something like a rocker arm that will produce a sound for the start or end of a scheduled ...

  9. Best Doorbells for Your Home - The Home Depot

    www.homedepot.com/c/ab/best-doorbells-for-your...

    Wireless doorbells use radio waves to connect the transmitter switch to the bell, so physical wiring unnecessary. Most wireless doorbell systems consist of a radio switch/transmitter and a receiver. The transmitter is mounted on the door exterior and the receiver can be placed anywhere in the house as long as it meets the range specifications.

  10. The VNS2211 break bell controller is designed to provide a low-cost solution to initiate bell tones and voice alerts through attached PA speakers according to a pre-programmed bell schedule. This break bell controller comes with a built-in battery backup and the ability to activate an old or mechanical bell if needed.

  11. Bell Timer System - Programmable, Easy-To-Use Web-Based ...

    www.linortek.com/school-factory-bell-timer-system

    Linortek Netbell is an ease-of-use network break timed alert system which has been custom developed for schools, factories, warehouses and other organizations that are in need of building a web-based automatic break time bell system. With the BellScheduler desk app, you can manage & schedule multiple Netbell devices whether in a single building ...