Bruce Hartpence

Packet Guide to Voice over IP (eBook, ePUB)

A system administrator's guide to VoIP technologies

• Format: ePub

Produktbeschreibung

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, youll 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 youre 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 videoUnderstand traditional telephony concepts, including local loop, tip and ring, and T carriersExplore the Session Initiation Protocol (SIP), VoIPs primary signaling protocolLearn the operations and fields for VoIPs standardized RTP and RTCP transport protocolsDelve into voice and video codecs for converting analog data to digital format for transmissionGet familiar with Communications Systems H.323, SIPs widely used predecessorExamine the Skinny Client Control Protocol used in Cisco VoIP phones in networks around the world

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Produktdetails

• Verlag: O'Reilly Media
• Seitenzahl: 242
• Erscheinungstermin: 26. Februar 2013
• Englisch
• ISBN-13: 9781449339630
• Artikelnr.: 53046966

Autorenporträt

Bruce 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.

Inhaltsangabe

Preface
Audience
Contents of This Book
Conventions Used in This Book
Using Code Examples
Safari® Books Online
How to Contact Us
Acknowledgments
Dedication
Chapter 1: Introduction to Voice over the Internet Protocol
1.1 What Is VoIP?
1.2 Real-time Versus Nonreal-time Data
1.3 Why Change to VoIP?
1.4 VoIP and FCC Regulation
1.5 General VoIP Topologies
1.6 Power over Ethernet
1.7 VoIP Protocols
1.8 VoIP Basic Operation
1.9 Unified Communications
1.10 Summary
1.11 Standards and Reading
1.12 Review Questions
1.13 Review Question Answers
1.14 Lab Activities
Chapter 2: Traditional Telephony
2.1 Introduction
2.2 Overview
2.3 Organizations
2.4 Connecting to the Traditional World
2.5 Telecommunication Companies
2.6 Telephone Wiring
2.7 Integrated Services Digital Network
2.8 Basic Telephone-Call Operation
2.9 Summary
2.10 Standards and Reading
2.11 Review Questions
2.12 Review Question Answers
2.13 Lab Activities
Chapter 3: Session Initiation Protocol
3.1 Introduction
3.2 Protocol Description
3.3 Basic Operation
3.4 SIP Messages and Message Structure
3.5 Basic Operation Continued
3.6 Trunks
3.7 Security
3.8 Summary
3.9 Standards and Reading
3.10 Review Questions
3.11 Review Question Answers
3.12 Lab Activities
Chapter 4: The Real-Time Transport Protocol and the Real-Time Control Protocol
4.1 Protocol Description
4.2 Profiles
4.3 Basic Operation
4.4 RTP Control Protocol
4.5 Security
4.6 Summary
4.7 Standards and Reading
4.8 Review Questions
4.9 Review Answers
4.10 Lab Activities
Chapter 5: Codecs
5.1 Audio Frequencies
5.2 Voice Signals
5.3 Audio Coders and Decoders
5.4 Transcoding
5.5 Packet Loss and Packet Loss Concealment (PLC)
5.6 What Codec Are You Using?
5.7 Video Signals
5.8 Standards Groups for Video
5.9 Summary
5.10 Standards and Reading
5.11 Review Questions
5.12 Review Question Answers
5.13 Lab Activities
Chapter 6: H.323 ITU-T Recommendation for Packet-Based Multimedia Communications Systems
6.1 Recommendation Description
6.2 Subprotocols
6.3 Basic Operation and Message Structure
6.4 H.225 Messaging
6.5 H.245
6.6 Voice Data
6.7 Termination
6.8 Summary
6.9 Standards and Reading
6.10 Review Questions
6.11 Review Question Answers
6.12 Lab Activities
Chapter 7: Skinny Client Control Protocol
7.1 Protocol Description
7.2 Topology Construction
7.3 Operational Stages
7.4 Performance Measuring
7.5 Off-Site Calling
7.6 Summary
7.7 Reading
7.8 Review Questions
7.9 Review Answers
7.10 Lab Activities
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