
117353-B Rev. 00
4-1
Chapter 4
ISDN Overview
This chapter contains the following information:
Integrated Services Digital Network (ISDN) is an internetworking technology that
integrates voice, data, and video communication over end-to-end digital
connections (Figure 4-1). From an internetworking perspective, the router can use
ISDN to provide LAN interconnection services over a wide area.
Figure 4-1. Sample ISDN Network
Because ISDN integrates services and offers multiple communication channels, it
is more versatile than traditional network services that support only one channel.
With ISDN, you can use the same lines and equipment for a variety of
communication needs. Also, using digital lines, as opposed to analog lines,
eliminates the need to convert digital to analog signals and provides faster and
more accurate communication.
Topic Page
ISDN Standards 4-2
ISDN Interfaces 4-5
For More Information about ISDN 4-8
Router
Router
ISDN
DS0007A
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