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Computer and Information Security Handbook, 2nd Edition
book

Computer and Information Security Handbook, 2nd Edition

by John R. Vacca
November 2012
Intermediate to advanced
1200 pages
78h 13m
English
Morgan Kaufmann
Content preview from Computer and Information Security Handbook, 2nd Edition
Chapter 50

VoIP Security

Harsh Kupwade Patil,    Southern Methodist University

Dan Wing,    Cisco Systems

Thomas M. Chen,    Swansea University

1 Introduction

H.323 and Session Initiation Protocol (SIP) are the two standardized protocols for the realization of VoIP.1,2 The multimedia conference protocol H.323 of the International Telecommunication Union (ITU) consists of multiple separate protocols such as the H.245 for control signaling and H.225 for call signaling. H.323 is difficult to implement because of its complexity and the bulkiness that it introduces into the client application.3 In contrast, SIP is simpler than H.323 and also leaner on the client-side application. SIP uses the human-readable protocol (ASCII) instead of H.323’s binary ...

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Publisher Resources

ISBN: 9780123943972