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ISBN10: 0071375686 | ISBN13: 9780071375689

ISBN10: 0071375686
ISBN13: 9780071375689
By Allan Sulkin

Product Information

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Enterprise Communications Systems Today

Evolution of the Digital PBX, 1975-2000

PBX Call Processing Design

PBX Switch Network Design

PBX Traffic Engineering Analysis

PBX Common Equipment

Introduction to IP-PBX Systems

VoIP

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