Introduction to SIP IP Telephony Systems: Technology Basics, Services, Economics, and Installation

by Lawrence J. Harte and Dave Bowler

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  • ISBN10 0972805389
  • ISBN13 9780972805384
  • Publish Date 28 November 2003
  • Publish Status Active
  • Publish Country US
  • Imprint Althos
  • Edition 2nd ed.
  • Format Paperback (US Trade)
  • Pages 144
  • Language English