Packet Guide to Voice Over IP

A system administrator's guide to VoIP technologies

Bruce Hartpence (Autor)

Buch | Softcover

242 Seiten

2013
O'Reilly Media, Inc, USA (Verlag)
978-1-4493-3967-8 (ISBN)

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Go under the hood of an operating Voice over IP network, and build your knowledge of the protocols and architectures used by this Internet telephony technology. With this concise guide, you’ll learn about services involved in VoIP and get a first-hand view of network data packets from the time the phones boot through calls and subsequent connection teardown.

With packet captures available on the companion website, this book is ideal whether you’re an instructor, student, or professional looking to boost your skill set. Each chapter includes a set of review questions, as well as practical, hands-on lab exercises.

Learn the requirements for deploying packetized voice and video
Understand traditional telephony concepts, including local loop, tip and ring, and T carriers
Explore the Session Initiation Protocol (SIP), VoIP’s primary signaling protocol
Learn the operations and fields for VoIP’s standardized RTP and RTCP transport protocols
Delve into voice and video codecs for converting analog data to digital format for transmission
Get familiar with Communications Systems H.323, SIP’s widely used predecessor
Examine the Skinny Client Control Protocol used in Cisco VoIP phones in networks around the world

Bruce Hartpence is a faculty member in the Network, Security and Systems Administration (NSSA) Department in the Golisano College of Computing and Information Science (GCCIS) at Rochester Institute of Technology (RIT) in Rochester, New York. He splits his time between teaching, projects and writing.

Chapter 1 Introduction to Voice over the Internet Protocol
What Is VoIP?
Real-time Versus Nonreal-time Data
Why Change to VoIP?
VoIP and FCC Regulation
General VoIP Topologies
Power over Ethernet
VoIP Protocols
VoIP Basic Operation
Unified Communications
Summary
Standards and Reading
Review Questions
Review Question Answers
Lab Activities
Chapter 2 Traditional Telephony
Introduction
Overview
Organizations
Connecting to the Traditional World
Telecommunication Companies
Telephone Wiring
Integrated Services Digital Network
Basic Telephone-Call Operation
Summary
Standards and Reading
Review Questions
Review Question Answers
Lab Activities
Chapter 3 Session Initiation Protocol
Introduction
Protocol Description
Basic Operation
SIP Messages and Message Structure
Basic Operation Continued
Trunks
Security
Summary
Standards and Reading
Review Questions
Review Question Answers
Lab Activities
Chapter 4 The Real-Time Transport Protocol and the Real-Time Control Protocol
Protocol Description
Profiles
Basic Operation
RTP Control Protocol
Security
Summary
Standards and Reading
Review Questions
Review Answers
Lab Activities
Chapter 5 Codecs
Audio Frequencies
Voice Signals
Audio Coders and Decoders
Transcoding
Packet Loss and Packet Loss Concealment (PLC)
What Codec Are You Using?
Video Signals
Standards Groups for Video
Summary
Standards and Reading
Review Questions
Review Question Answers
Lab Activities
Chapter 6 H.323 ITU-T Recommendation for Packet-Based Multimedia Communications Systems
Recommendation Description
Subprotocols
Basic Operation and Message Structure
H.225 Messaging
H.245
Voice Data
Termination
Summary
Standards and Reading
Review Questions
Review Question Answers
Lab Activities
Chapter 7 Skinny Client Control Protocol
Protocol Description
Topology Construction
Operational Stages
Performance Measuring
Off-Site Calling
Summary
Reading
Review Questions
Review Answers
Lab Activities
Colophon

Erscheint lt. Verlag	9.4.2013
Verlagsort	Sebastopol
Sprache	englisch
Maße	178 x 233 mm
Gewicht	390 g
Einbandart	Paperback
Themenwelt	Mathematik / Informatik ► Informatik ► Netzwerke
Schlagworte	Voice Over IP
ISBN-10	1-4493-3967-0 / 1449339670
ISBN-13	978-1-4493-3967-8 / 9781449339678
Zustand	Neuware