Book description
Voice and Video Conferencing Fundamentals
Design, develop, select, deploy, and support advanced IP-based audio and video conferencing systems
Scott Firestone, Thiya Ramalingam, Steve Fry
As audio and video conferencing move rapidly into the mainstream, customers and end users are demanding unprecedented performance, reliability, scalability, and security. In Voice and Video Conferencing Fundamentals, three leading experts systematically introduce the principles, technologies, and protocols underlying today’s state-of-the-art conferencing systems. Discover how to use these concepts and techniques to deliver unified, presence-enabled services that integrate voice, video, telephony, networks, and the Internet—and enable breakthrough business collaboration.
The authors begin with a clear, concise overview of current voice and video conferencing, including system components, operational modes, endpoints, features, and user interactivity. Next, they illuminate conferencing architectures, offering practical insights for designing today’s complex IP-based conferencing and collaboration systems.
Topics covered in this book include video codecs, media control, SIP and H.323 protocols and applications, lip synchronization in video conferencing, security, and much more. Throughout the book, the authors draw on their extensive experience as Cisco® technical leaders, showing how to avoid the most common pitfalls that arise in planning, deployment, and administration.
Voice and Video Conferencing Fundamentals is for every professional involved with audio or video conferencing: network and system administrators, engineers, technology managers, and Cisco solution partners alike. Whether you’re involved with design, development, selection, implementation, management, or support, you’ll find the in-depth knowledge you need to succeed.
Scott Firestone holds a master’s degree in computer science from MIT and has designed video conferencing and voice products since 1992, resulting in five patents. Thiya Ramalingam is an engineering manager for the Cisco Unified Communications organization. Thiya holds a master’s degree in computer engineering and an MBA degree from San Jose State University. Steve Fry, a technical leader in the Cisco Unified Communication organization, has spent the last several years designing and developing telephony and conferencing products.
Thoroughly understand the fundamentals of audio and video conferencing over IP networks
Architect networks for optimal performance and reliability in conferencing applications
Leverage new advances in video architecture, from emerging codecs to distributed implementations
Understand how SIP and H.323 compare, and when to use each
Optimize synchronization between audio and video
Secure conferencing traffic without compromising performance or connectivity
Learn how to evaluate vendors and make better buying decisions
Foreword
Introduction
Chapter 1 Overview of Conferencing Services
Chapter 2 Conferencing System Design and Architecture
Chapter 3 Fundamentals of Video Compression
Chapter 4 Media Control and Transport
Chapter 5 Signaling Protocols: Conferencing Using SIP
Chapter 6 Signaling Protocols: Conferencing Using H.
Chapter 7 Lip Synchronization in Video Conferencing
Chapter 8 Security Design in Conferencing
Appendix A Video Codec Standards
This book is part of the Cisco Press® Fundamentals Series. Books in this series introduce networking professionals to new networking technologies, covering network topologies, sample deployment concepts, protocols, and management techniques.
Category: Cisco Press/Networking
Covers: Voice and video conferencing
1587052687
Table of contents
- Copyright
- About the Authors
- About the Technical Reviewers
- Acknowledgments
- Icons Used in This Book
- Command Syntax Conventions
- Foreword
- Introduction
- 1. Overview of Conferencing Services
- 2. Conferencing System Design and Architecture
-
3. Fundamentals of Video Compression
- Evaluating Video Quality, Bit Rate, and Signal-to-Noise Ratio
- Video Source Formats
- Basics of Video Coding
- Hybrid Coding
- Scalable Layered Codecs
- Switching Frames
- Video Codecs
- Summary
- References
- 4. Media Control and Transport
- 5. Signaling Protocols: Conferencing Using SIP
-
6. Signaling Protocols: Conferencing Using H.323
- H.323 Overview
- H.323 Endpoint Aliasing
- H.225 Call Signaling
-
H.245 Control Protocol
-
H.245 Messages
- Terminal Capability Set
- Simultaneous Capability Set
- H.245 User Input Indications
- Indicating DTMF Relay Support in the TCS Message
- Master-Slave Determination
- Open Logical Channel Requests
- Open Logical Channel Acknowledgment
- Close Logical Channel
- Close Logical Channel Acknowledgment
- Request Channel Close
- H.245 EndSession Command
- Video-Specific H.245 Messages
- H.323 Fast Connect Mode
-
H.245 Messages
- Using the Empty Capability Set
- H.323 Device Types
-
H.323 Gatekeeper Services
- Required H.323 Gatekeeper Features
- Optional H.323 Gatekeeper Features
- Gatekeeper Signaling Options
- Gatekeeper RAS Signaling
- Mid-Call Bandwidth Requests
- Configuring a Gatekeeper in Cisco Unified CallManager
- Configuring Gatekeeper Support in a Cisco IOS Router
- H.225 Call Setup for Video Devices Using a Gatekeeper
- Using Service Prefixes with MCUs
- Summary
- References
- 7. Lip Synchronization in Video Conferencing
-
8. Security Design in Conferencing
- Security Fundamentals
- Threats
- Configuring Basic Security
- Port Usage
- NAT and PAT
- Encryption Basics
- IPsec and TLS for Secure Signaling
- Media Encryption
- H.323 Encryption: H.235
- SIP Encryption
- Summary
- References
- A. Video Codec Standards
Product information
- Title: Voice and Video Conferencing Fundamentals
- Author(s):
- Release date: March 2007
- Publisher(s): Cisco Press
- ISBN: 1587052687
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