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  2. AOL Mail

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    Get AOL Mail for FREE! Manage your email like never before with travel, photo & document views. Personalize your inbox with themes & tabs. You've Got Mail!

  3. Network Equipment-Building System - Wikipedia

    en.wikipedia.org/wiki/Network_Equipment-Building...

    NEBS (Network Equipment-Building System) describes the environment of a typical United States RBOC Central Office. NEBS is the most common set of safety, spatial and environmental design guidelines applied to telecommunications equipment in the United States. It is an industry requirement, but not a legal requirement.

  4. BellSouth Telecommunications - Wikipedia

    en.wikipedia.org/wiki/BellSouth_Telecommunications

    BellSouth Telecommunications, LLC is an operating company of AT&T that serves the southeastern United States. It consists of the former operations of Southern Bell and South Central Bell . BellSouth Telecommunications was a subsidiary of BellSouth Corporation which was acquired by AT&T Inc. on December 29, 2006.

  5. Number One Electronic Switching System - Wikipedia

    en.wikipedia.org/wiki/Number_One_Electronic...

    The voice switching fabric plan was similar to that of the earlier 5XB switch in being bidirectional and in using the call-back principle. [clarification needed] [citation needed] The largest full-access matrix switches (the 12A line grids had partial access) in the system, however, were 8x8 rather than 10x10 or 20x16.

  6. Automatic number announcement circuit - Wikipedia

    en.wikipedia.org/wiki/Automatic_number...

    By connecting a test telephone set, a technician calls the local telephone number of the automatic number announcement service. This call is connected to equipment at the central office that uses automatic equipment to announce the telephone number of the line calling in. The main purpose of this system is to allow telephone company technicians ...

  7. BellSouth - Wikipedia

    en.wikipedia.org/wiki/BellSouth

    BellSouth, LLC (stylized as BELLSOUTH and formerly known as BellSouth Corporation) was an American telecommunications holding company based in Atlanta, Georgia.BellSouth was one of the seven original Regional Bell Operating Companies after the U.S. Department of Justice forced the American Telephone & Telegraph Company to divest itself of its regional telephone companies on January 1, 1984.

  8. Maintenance engineering - Wikipedia

    en.wikipedia.org/wiki/Maintenance_engineering

    Maintenance, and hence maintenance engineering, is increasing in importance due to rising amounts of equipment, systems, machineries and infrastructure. Since the Industrial Revolution , devices, equipment, machinery and structures have grown increasingly complex, requiring a host of personnel, vocations and related systems needed to maintain ...

  9. Optimal maintenance - Wikipedia

    en.wikipedia.org/wiki/Optimal_Maintenance

    Optimal maintenance is the discipline within operations research concerned with maintaining a system in a manner that maximizes profit or minimizes cost. Cost functions depending on the reliability , availability and maintainability characteristics of the system of interest determine the parameters to minimize.

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