Network+ Guide to Networks (MindTap Course List)
Network+ Guide to Networks (MindTap Course List)
8th Edition
ISBN: 9781337569330
Author: Jill West, Tamara Dean, Jean Andrews
Publisher: Cengage Learning
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Chapter 12, Problem 14RQ
Program Plan Intro

ISDN:

  • ISDN stands for Integrated Services Digital Network is an international standard established by the International Telecommunication Union (ITU) in 1984. It is designed to transmit both the digital and voice over the Public Switched Telephone Network (PSTN).
  • It is used to specify the protocol for the Physical, Data Link and Transport Layer of OSI model.
  • These protocols are used for framing, error detection, connection set up and termination, and error correction.
  • ISDN connection were based on two types of channels
    • B channel
    • D channel

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