Voice Over IP (2nd Edition) - Softcover

Black, Uyless N.

Softcover

ISBN 10: 0130652040 ISBN 13: 9780130652041

Publisher: Prentice Hall, 2001

Synopsis

Voice Over IP is the #1 guide for professionals planning or running VoIP applications. Uyless Black covers every current technical standard, protocol, and interoperability solution. The Second Edition adds new chapters on gateways, call processing, and traffic engineering; presents in-depth coverage of Cisco Voice QoS; and is the first book to introduce TRIP, the breakthrough protocol for voice message delivery.

About this title

About the Author

UYLESS BLACK is a widely known and respected consultant and lecturer on computer networks and data communications and author of every book in the Prentice Hall Series in Advanced Communications Technologies, including IP Routing Protocols and MPLS and Label Switching Networks. He is also creator of Uyless Black's Networking 101 Video Course. Black resides in Virginia's Shenandoah Valley.

From the Back Cover

• The #1 VoIP bestseller for technical professionals (now completely updated!
• All-new chapters on gateways, call processing, and traffic engineering
• IP and the PSTN: advanced interoperability solutions
• TRIP: the breakthrough protocol for voice message delivery
• Cisco Voice QoS: traffic prioritization, congestion control, signaling, policies, and more

The authoritative guide to Internet voice communications (now completely updated!

Voice Over IP, Second Edition is the essential guide for telecommunications professionals who must understand or deploy VoIP. Leading network consultant Uyless Black carefully evaluates VoIP's challenges and compelling advantages, and then reviews every technical standard and platform. This thoroughly updated Second Edition reflects dramatic improvements in VoIP standards and practice, adding completely new chapters on gateways, RSVP and DiffServ call processing, and traffic engineering.

• Reviews key technical obstacles to successful VoIP deployment, including packet loss and variable delay
• Covers emerging approaches to interoperability between IP networks and the public switched telephone network
• Introduces Telephony Routing Over IP (TRIP), the breakthrough protocol for voice message delivery
• Covers Cisco Voice QoS network optimization in detail: traffic prioritization, congestion control, signaling, QoS management, and policy control
• Shows how to establish paths to service providers through the local loop via ISDN, xDSL, and HFC
• Contains concise, to-the-point introductions to H.322, Megaco, MGCP, and SIP

Voice Over IP, Second Edition is everything you need to know about running voice over IP networks today(from technical fundamentals to next-generation protocols and beyond.

Excerpt. © Reprinted by permission. All rights reserved.

Preface

This book is one in a series of books called "Advanced Communications Technologies." As the name of the book implies, the focus is on the Internet and the Internet Protocol (IP) in relation to the support of voice traffic.

The subject matter of this book is vast and my approach is to provide an introduction to the topic. In consonance with the intent of this series, this survey also has considerable detail but not to the level needed to design a system. For that, I leave you to your project team and the various specifications that establish the standards for Internet telephony.

This book is considered to be at an intermediate to advanced level. As such, it assumes the reader has a background in voice and data communications and the IP suite. Notwithstanding, for the new reader, I have provided several tutorials and guide you to them in the appropriate parts of the book. I also guide the more experienced reader away from them.

I hope you find this book a valuable addition to your library.NOTES TO THE READER

In writing multiple books about data and voice communications systems, the author is faced with a question: How much overlap (redundancy of material) should there be among the books in the series? If the overlap is too little, the reader must buy other books in the series to fill the gaps. If the overlap is too great, the reader who has purchased other books in the series may feel cheated by spending additional money to obtain the same information.

My approach is to try to strike a compromise between the two extremes. If another book in the series contains information on a topic that is relevant to the topic of the current book, yet is not a required subject in order to read the current book, I make reference to the book. However, that is not always possible. In a few cases, it is necessary to include material from other books in the series. Otherwise, the book in question becomes a fragmented reference to other books. I have taken this approach with this book. I trust you find this an efficient and useful way to deal with this matter.

To help strike this compromise, I have included appendices that are extracted from some of my other books. A basic knowledge of telephony signaling, the V.34 modem, ISDN, and SS7 will be very helpful as you read some of these chapters about VoIP, and I have included tutorials on these subjects in the appendices at the back of this book.EXPLANATIONS OF MESSAGES AND PROTOCOL FLOWS

This book is a survey (albeit a detailed one) of the VoIP technology. A wide variety of VoIP control messages and protocols are used to support VoIP, and the standards bodies and the Internet task forces are defining hundreds of messages and scores of protocol flows between VoIP gateways, call agents, and user machines. It is not the intent of this book to explain the contents of each message and each protocol flow, which would simply duplicate the VoIP specifications. Instead, I provide tutorial explanations of these messages and flows, as well as selected examples of each. In each case, I provide you with references to the original specifications. In this manner, the book should provide you with a handy reference tool and act as a pointer toward more information if you so desire.INTERNET DRAFTS: WORK IN PROGESS

A considerable portion this book is devoted to explaining many Internet-based specifications pertaining to packet telephony.

Keep in mind that the Internet drafts are works in progress, and should be viewed as such. You should not use the drafts with the expectation that they will not change. Notwithstanding, if used as general tutorials, the drafts discussed in this book are "final enough" to warrant their explanations. Indeed, many of my clients use these drafts in their product planning and design.

For all the Internet standards and drafts the following applies:

Copyright (c) The Internet Society (1998). All Rights Reserved.

This document and translations of it may be copied and furnished to others, and derivative works that comment on or otherwise explain it or assist in its implementation may be prepared, copied, published and distributed, in whole or in part, without restriction of any kind, provided that the above copyright notice and this paragraph are included on all such copies and derivative works. However, this document itself may not be modified in any way, such as by removing the copyright notice or references to the Internet Society or other Internet organizations, except as needed for the purpose of developing Internet standards in which case the procedures for copyrights defined in the Internet Standards process must be followed, or as required to translate it into languages other than English.

The limited permissions granted above are perpetual and will not be revoked by the Internet Society or its successors or assigns.

Edition details

• Publisher: Prentice Hall
• Publication date: 2001
• Language: English
• ISBN 10: 0130652040
• ISBN 13: 9780130652041
• Binding: Paperback
• Number of pages: 352