December 2001
Intermediate to advanced
656 pages
27h 19m
English
Content preview from Networking Explained, 2nd Edition
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Chapter 11
Integrated Services Digital Network (ISDN)
The integrated services digital network (ISDN) represents the overhaul and redesign of
our conventional telephone network from an analog system to an end-to-end digital net-
work. This new, completely digital-based network is capable of transmitting voice and
data communications over a single telephone line using inexpensive and conventional
twisted-pair cable (i.e., standard copper telephone wire). A brief overview of various fun-
damental ISDN concepts was provided in Chapter 7 as part of our discussion of WAN
technologies and services. In this chapter, we extend this discussion and provide more
detailed information about ISDN. An outline of the major topics we present follows:
• History of ISDN ...
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