Telephone system interconnects users of from one to eight telephone lines in network. System is useful in coordinating activities in large plants and installations. It permits spontaneous conferences, paging, and monitoring from key locations.


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    Title :

    A telephone multiline signaling system


    Contributors:
    Toole, P. C. (author) / Belt, J. L. (author) / Goodloe, R. (author) / Leiniger, D. B. (author)

    Published in:

    Publication date :

    1979-08-01



    Type of media :

    Miscellaneous


    Type of material :

    No indication


    Language :

    English




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