Growing vulnerability of the public switched networks :

Growing vulnerability of the public switched networks : implications for national security emergency preparedness. - 1 online resource (131 pages)

Includes bibliographical references at the end of each chapters.

9780309580915 (e-book)


Telecommunication systems.
Emergency communication systems--United States.
National security--United States.
Telecommunication--Switching systems.--United States


Electronic books.

TK5101 / .G769 1989

621.382
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