Understanding Voice Over IP Technology

  • Author(s): Nicholas Wittenberg
  • Publisher: Cengage Learning
  • Copyright year: © 2010
  • Edition: 1st
  • Pages: 448
  • Print ISBN: 9781435427273, 1435427270
  • eText ISBN: 9781111806613, 1111806616
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  • Print ISBNs: 9781133483441, 1133483445
  • Other: 9781439016916