Packet Guide to Voice Over IP: A system administrator's guide to VoIP technologies (Paperback)

Bruce Hartpence

  • 出版商: O'Reilly
  • 出版日期: 2013-04-09
  • 售價: $910
  • 貴賓價: 9.5$865
  • 語言: 英文
  • 頁數: 242
  • 裝訂: Paperback
  • ISBN: 1449339670
  • ISBN-13: 9781449339678
  • 海外代購書籍(需單獨結帳)

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商品描述

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

商品描述(中文翻譯)

深入了解運作中的語音互聯網協議和架構,建立對這種網絡電話技術所使用的協議和架構的知識。這本簡明指南將介紹與語音互聯網協議相關的服務,並從電話開機、通話到連接拆除的過程中,提供網絡數據包的實時視圖。

這本書附帶了網站上的數據包捕獲,非常適合教師、學生或專業人士使用,以提升技能。每章都包含一組復習問題,以及實用的實驗室練習。

本書的內容包括:
- 學習部署分組語音和視頻的要求
- 理解傳統電話概念,包括本地環路、tip和ring以及T載波
- 探索會話初始化協議(SIP),語音互聯網的主要信令協議
- 學習語音互聯網標準化的RTP和RTCP傳輸協議的操作和字段
- 深入研究語音和視頻編解碼器,將模擬數據轉換為數字格式進行傳輸
- 熟悉通信系統H.323,這是SIP的廣泛使用的前身
- 檢查在世界各地的網絡中使用的Cisco語音互聯網電話中使用的Skinny客戶端控制協議