Avaya Configuring Dial Services Manual de usuario Pagina 101

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114062 Rev. B 3-1
Chapter 3
ISDN Overview
Integrated Services Digital Network (ISDN) is an internetworking technology that
integrates voice, data, and video communication over end-to-end digital
connections (Figure
3-1). From an internetworking perspective, the router can use
ISDN to provide LAN interconnection services over a wide area.
Figure 3-1. 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.
In addition to offering integrated services, ISDN provides a number of standard,
universal interfaces to access ISDN services. With a defined set of interfaces, you
can purchase ISDN equipment and services from different providers and all the
parts of your network will have the same interfaces to connect to one another as
well as to the ISDN network.
Router
Router
ISDN
DS0007A
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