2.5 ISDN & ATM

• Integrated Services Digital Network (ISDN)

  • telephone, fax, computer, video, security
  • narrowband ISDN
  • broadband (B-ISDN)

• Asynchronous Transfer Mode (ATM)

  • asynchronous packet switching
  • voice, music, images, video, data
  • ATM protocol layers
  • ATM switching
  • SONET

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