Beyond VoIP Protocols: Understanding Voice Technology and Networking Techniques for IP Telephony (Hardcover)

Olivier Hersent, Jean-Pierre Petit, David Gurle

  • 出版商: Wiley
  • 出版日期: 2005-02-01
  • 定價: $1,100
  • 售價: 9.5$1,045
  • 語言: 英文
  • 頁數: 284
  • 裝訂: Hardcover
  • ISBN: 0470023627
  • ISBN-13: 9780470023624
  • 相關分類: IPV6Computer-networks
  • 立即出貨 (庫存=1)

買這商品的人也買了...

相關主題

商品描述

Description:

In 1999-2000, VoIP (Voice-over-IP) telephony was one of the most successful buzzwords of the telecom bubble era. However, in 2001-2003, VoIP faced a very tough reality check. Now, manufacturers and service providers are drawing on what they have learnt from past experience in order to prepare to participate in the next major challenge faced by the telecommunications industry.

This book offers a comprehensive overview of the issues to solve in order to deploy global revenue-generating effective "multimedia" services. Drawing on extensive research and practical deployment experience in VoIP, the authors provide essential advice for those seeking to design and implement a post-bubble VoIP network.

Beyond VoIP Protocols: Understanding Voice Technology and Networking Techniques for IP Telephony

  • Introduces the basics of speech coding and voice quality
  • Demonstrates how quality of service may be built into the network and deals with dimensioning aspects, e.g. multipoint communications and how to model call seizures.
  • Explores the potential of multicast to turn an IP backbone into an optimized broadcast medium
  • Includes amply illustrated, state-of-the-art practical advice for formulating a complete deployment strategy

A companion volume to "IP Telephony: Deploying VoIP Protocols", this book takes the reader a stage deeper into how to prepare the network and exploit VoIP technology to its full potential.

 

Table of Contents:

Glossary.

List of Abbreviations.

1. Introduction.

1.1 The rebirth of VoIP.

1.2 Why beyond VoIP protocols?

1.3 Scope of this book.

1.4 Intended audience.

1.5 Conclusion.

1.6 References.

2. Introduction to Speech-coding Techniques.

2.1 A primer on digital signal processing.

2.2 The basic tools of digital signal processing.

2.3 Overview of speech signals.

2.4 Advanced voice coder algorithms.

2.5 Waveform coders. ADPCM ITU-T G.726.

2.6 Hybrids and analysis by synthesis (ABS) speech coders.

2.7 Codebook-excited linear predictive (CELP) coders.

2.8 Quality of speech coders.

2.9 Conclusion on speech-coding techniques and their near future.

2.10 References.

2.11 Annexes.

3. Voice Quality.

3.1 Introduction.

3.2 Reference VoIP media path.

3.3 Echo in a telephone network.

3.4 Delay.

3.5 Acceptability of a phone call with echo and delay.

3.6 Conclusion.

3.7 Standards.

4. Quality of Service.

4.1 Introduction: What is QoS?

4.2 Describing a data stream.

4.3 Queuing techniques for QoS.

4.4 Signaling QoS requirements.

4.5 The CableLabs® PacketCableTM quality-of-service specification: DQoS.

4.6 Improving QoS in the best effort class.

4.7 Issues with slow links.

4.8 Conclusion.

4.9 References.

4.10 Packet size annex.

5. Network Dimensioning.

5.1 Simple compressed voice flow model.

5.2 Building a network dedicated to IP telephony.

5.3 Merging data communications and voice communications on one common IP backbone.

5.4 Multipoint communications.

5.5 Modeling call seizures.

5.6 Conclusion.

5.7 References.

6. IP Multicast Routing.

6.1 Introduction .

6.2 When to use multicast routing.

6.3 The multicast framework.

6.4 Controling scope in multicast applications.

6.5 Building the multicast delivery tree.

6.6 Multicast-routing protocols.

6.7 The mBone.

6.8 MULTICAST issues on non-broadcast media.

6.9 Conclusion.

6.10 References .

Index.

商品描述(中文翻譯)

描述:
在1999年至2000年,VoIP(互聯網語音)電話是電信泡沫時代最成功的熱門詞語之一。然而,在2001年至2003年,VoIP面臨了一個非常嚴峻的現實檢驗。現在,製造商和服務提供商正在借鑒他們從過去經驗中學到的東西,為電信行業面臨的下一個重大挑戰做好準備。

本書提供了部署全球收入生成有效的“多媒體”服務所需解決的問題的全面概述。作者們根據在VoIP方面的廣泛研究和實際部署經驗,為那些希望設計和實施後泡沫時代的VoIP網絡的人提供了必要的建議。

《超越VoIP協議:理解語音技術和IP電話的網絡技術》
- 介紹語音編碼和語音質量的基礎知識
- 示範如何將服務質量融入網絡中,並處理尺寸方面的問題,例如多點通信以及如何建模呼叫佔用
- 探索多播的潛力,將IP骨幹網絡轉變為優化的廣播媒介
- 包含豐富的圖解,提供完整部署策略的實用建議

作為《IP電話:部署VoIP協議》的配套書籍,本書將讀者帶入更深層次,介紹如何準備網絡並充分利用VoIP技術的潛力。

目錄:
- 术语表
- 缩写列表
- 第1章:介绍
- 第2章:语音编码技术简介
- 第3章:语音质量

(以下省略)

最後瀏覽商品 (20)