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ISDN Basics By Cisco
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URL: http://www.cisco.com/univercd/cc/td/doc/cisintwk/ito_doc/isdn.htm
Description: The goals of this course are to:
•Explain what ISDN is.
•Describe ISDN devices and how they operate.
•Describe the specifications for ISDN data transmittal for the three layers at which ISDN transmits.
Submitted: 06/05/06
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