Búsqueda de LIBROS DEL AUTOR: theodore wallingford

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  • VOIP HACKS
    ebook
    VOIP HACKS
    THEODORE WALLINGFORD
    Voice over Internet Protocol (VoIP) is gaining a lot of attention these days, as more companies and individuals switch from standard telephone service to phone service via the Internet. The reason is simple: A single network to carry voice and data is easier to scale, maintain, and administer. As an added bonus, it's also cheaper, because VoIP is free of the endless government ...

    $321.00

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  • SWITCHING TO VOIP
    ebook
    SWITCHING TO VOIP
    THEODORE WALLINGFORD
    More and more businesses today have their receive phone service through Internet instead of local phone company lines. Many businesses are also using their internal local and wide-area network infrastructure to replace legacy enterprise telephone networks. This migration to a single network carrying voice and data is called convergence, and it's revolutionizing the world of tel...

    $427.00

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  • VOIP HACKS
    ebook
    VOIP HACKS
    THEODORE WALLINGFORD
    Voice over Internet Protocol (VoIP) is gaining a lot of attention these days, as more companies and individuals switch from standard telephone service to phone service via the Internet. The reason is simple: A single network to carry voice and data is easier to scale, maintain, and administer. As an added bonus, it's also cheaper, because VoIP is free of the endless government ...

    $321.00

    Ver detalle