By A. Michael Noll
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Extra info for Introduction to telephones and telephone systems
The material in this book is based on graduate-level courses taught by the author at the Annenberg School for Communication at the University of Southern California and also at the Interactive Telecommunications Program at New York University. Four major areas combine to make telephone communication possible. The first area deals with the telephone instrument itself and is called station apparatus. The second area deals with the various transmission media that carry communication signals over long and short distances.
D. Kinney, "AT&T Network Architecture Evolution," AT&T Technical Journal, May/June 1987, pp. 212. Noll, A. , "Network Security and Reliability: Emergencies In Decentralized Networks," in Private Networks Public Objectives, (E. Noam and A. ), Amsterdam, The Netherlands: Elsevier Science B. , 1996, pp. 343356. Sable, E. , and H. W. Kettler, "Intelligent Network Directions," AT&T Technical Journal, Summer 1991, pp. 210. Page 23 3 Station Apparatus Introduction The most visible aspect of telephone service is the telephone instrument itself.
It is the telephone that we use to call and speak to other people. However, as we shall see much later in this book, there is considerably more "beyond the dial" to the provision of telephone service. Since it is so visible, we shall begin our understanding of the workings of telephone service by examining the workings of the telephone instrument itself. In this chapter, we shall review the story of the invention of the telephone and its various component parts. It is surprising that the basic workings of the telephone have changed so very little over its century of history.