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  • BUSINESS TELECOM SYSTEMS
    ebook
    BUSINESS TELECOM SYSTEMS
    KERSTIN PETERSON
    For anyone involved in buying and managing telephone systems, this book brings clarity to the confusing array of products and services (like voicemail, interactive voice response, fax-on-demand, T-1, DSL, etc.). The author explains how each technology works, and what its practical applications are, so readers can choose the best systems and service ...

    $1,040.00

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