Cisco Voice over IP (CVoice) (Authorized Self-Study Guide), 2nd Edition

Product Description

A new edition of this title is available, ISBN-10: 1587055546 ISBN-13: 9781587055546

Customer Reviews

8 of 8 people found the following review helpful A Solid Book for VoIP Beginners, October 20, 2006 By  Hao Zhong (San Jose, CA United States) - See all my reviews    This review is from: Cisco Voice over IP (CVoice) (Authorized Self-Study Guide) (2nd Edition) (Hardcover) This book is very well written and easy to read. It's ideal for those who want to learn the basics of telephony networks and Voice over IP. It is more than just an exam prep book as the name suggests, it actually helps you build up a solid knowledge foundation for Voice over IP. The author does a wonderful job in the first two chapters going through the fundamental concepts of traditional telephone networks including different call control architectures (distributed vs. centralized model); a variety of analog and digital signaling systems such as loop-start, ground-start, E&M, CAS and CCS; T1 multiplexing and framing; Digital-Analog/Analog-Digital conversion. The in-depth coverage on different signaling systems is especially helpful in understanding how each of them fits into the telephone system. Before diving straight into VoIP and QoS, the author discusses different VoIP architectures as well as how to baseline voice traffic using traffic theory. A good thing... Read more Help other customers find the most helpful reviews  Was this review helpful to you?  Report abuse | Permalink  Comment 6 of 6 people found the following review helpful Job Well Done!, October 18, 2006 By  Shahid Shafi (San Diego) - See all my reviews    Amazon Verified Purchase(What's this?) This review is from: Cisco Voice over IP (CVoice) (Authorized Self-Study Guide) (2nd Edition) (Hardcover) I recently read Cisco Press's Cisco Voice over IP (CVoice) Self Study guide as I was studying for CVoice exam (core exam required for CCVP certification). Usually I don't like to read certification guides as 9 out of 10 times they lack technical details and real world examples. The focus of certification guides is to help you pass the exam and nothing else. But I was pleasantly surprised as CVoice guide provides ample real world scenarios and lab exercises. The book is divided into seven chapters and also contains a well written chapter on Cisco Voice Applications in appendix. For folks like me who are new to voice arena, the chapter in appendix is a must read as it is an excellent starting point to learn about Cisco's current Voice portfolio. The book starts with a chapter on traditional telephony networks and an introduction to IP telephony networks; it then moves to analog and digital voice connections and covers topics like voice encoding, Nyquist... Read more Help other customers find the most helpful reviews  Was this review helpful to you?  Report abuse | Permalink  Comment 4 of 4 people found the following review helpful Well organized study guide, December 4, 2006 By  ME "CCIE #8775" (Murphy, TX, USA) - See all my reviews This review is from: Cisco Voice over IP (CVoice) (Authorized Self-Study Guide) (2nd Edition) (Hardcover) I read Cisco Voice over IP, Second Edition, by Kevin Wallace (ISBN-13: 978-1-58705-262-0) because I worked with Cisco VoIP when it first came out, but have not kept current with new VoIP developments and improvements. Many of the books available today on Cisco VoIP are starting to get dated. I have found that Cisco Press is generally the best source for accurate and up-to-date information regarding Cisco tests. This book does a great job of covering both the basics and recent topics. The material is well presented in this book. Kevin starts with the fundamentals and legacy POTs. He then covers basic VoIP and dial-peers. He covers H.323, SIP and MGCP signaling protocols in depth. There is a good chapter on MGCP - a protocol seldom used in enterprise networks that many of us need to learn for this test. The book wraps up with a chapter on QoS. Essentially everything you need to know to have a very strong understanding of VoIP is covered in this book. This book covers... Read more Help other customers find the most helpful reviews  Was this review helpful to you?  Report abuse | Permalink  Comment

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Praise For Cisco Voice over IP (CVoice) (Authorized Self-Study Guide), 2nd Edition

Review by Glenn Bradley
Review by Martin Kurniawan, CCNP
Gary Roesler, CCIE No. 11451, CCVP
Shahid Shafi, CCIE No. 12665

Index

Download - 88.7 KB -- Index

Table of Contents

Introduction

Chapter 1 Fundamentals of Telephony Networks

Basic Components of Telephony Networks

    CO Switches and Switching Systems

    Privately Owned Switches

    Call Signaling

    Multiplexing

Fundamentals of Packet Telephony Networks

    Benefits of Packet Telephony Networks

    Packet Telephony Components

    Call Control

    Real-Time versus Best-Effort Traffic

IP Telephony Applications

    Analog Interfaces

    Digital Interfaces

    IP Phones

    Types of Deployment

Summary

Chapter Review Questions

Chapter 2 Analog and Digital Voice Connections

Analog Voice Fundamentals

    Local-Loop Connections

    Local-Loop Signaling

    Trunk Connections

    Trunk Signaling

    Echo

Analog-to-Digital and Digital-to-Analog Voice Encoding

    Sampling and the Nyquist Theorem

    Quantization

    Voice Compression Standards

Signaling Systems

    Channel Associated Signaling

    Common Channel Signaling Systems

    Signaling System Interoperability

Enabling VoIP Fax and Modem Transmission

    Cisco Fax Relay

    T.38 Fax Relay

    T.37 Fax Store and Forward

    Fax Pass-Through

    Modem Pass-Through

    Modem Relay

Summary

Chapter Review Questions

Lab Exercise: Navigating Your Hands-On Lab

    Task 1: Physical Connectivity

    Task 2: Initial Configuration

    Task 3: Exercise Verification

    Suggested Solution

Chapter 3 Voice Interface Configuration

Configuring Voice Ports

    Voice Applications

    FXS Ports

    FXO Ports

    E&M Ports

    Timers and Timing

    Digital Voice Ports

    ISDN

    Common Channel Signaling Options

    Monitoring and Troubleshooting

    Tuning Voice Quality

    Electrical Characteristics

    Voice Port Tuning

    Configuring Echo Cancellation

Summary

Chapter Review Questions

Lab Exercise: Voice Port Configuration

    Task 1: Configure FXS Port Parameters

    Task 2: Exercise Verification

    Suggested Solution

Chapter 4 Voice Dial Peer Configuration

Configuring Dial Peers

    Understanding Call Legs

    Understanding Dial Peers

    Configuring POTS Dial Peers

    Configuring VoIP Dial Peers

    Configuring Destination-Pattern Options

    Characteristics of the Default Dial Peer

    Matching Inbound Dial Peers

    Matching Outbound Dial Peers

    Configuring Hunt Groups

    Collecting and Analyzing Digits

    Manipulating Digits

    Special-Purpose Connections

    PLAR

    PLAR-OPX

    Trunk Connection

    Tie-Line Connection

Summary

Chapter Review Questions

Lab Exercise: POTS and VoIP Dial Peers

    Task 1: Configure POTS Dial Peers

    Task 2: Exercise Verification

    Suggested Solution

Lab Exercise: PLAR Connection

    Task 1: Configure PLAR

    Task 2: Exercise Verification

    Suggested Solution

Chapter 5 VoIP Fundamentals

Understanding VoIP Requirements

    Business Case for VoIP

    VoIP Functional Components

    VoIP Protocols

    VoIP Service Considerations

    RTP and RTCP

VoIP Network Architectures

    Centralized Network Architectures

    H.323 Distributed Network Architectures

    SIP Distributed Network Architectures

    Comparing Network Architectures

    Simple Multisite IP Telephony Network

    Interconnecting VoIP Protocols

    Understanding Gateways

    Practice Scenarios: Network Architecture

Building Scalable Dial Plans

    Numbering Plans and Dial Plans

Scalable Dial Plans

    Enhancing and Extending an Existing Plan to Accommodate VoIP

    Accounting for Caller Mobility for 911 Services

    Calculating Bandwidth Requirements

    CODEC Payload Bandwidth Requirements

    Impact of Voice Samples and Packet Size on Bandwidth

    Data Link Overhead

    Security and Tunneling Overhead

    Calculating the Total Bandwidth for a VoIP Call

    Effects of Voice Activity Detection on Bandwidth

    Cisco Voice CODEC Bandwidth Calculator

    Allocating Bandwidth for Voice and Data Traffic

    Traffic Statistics

    Establishing Network Objectives for Voice and Data

    Meeting the Current Network Objective

    Traffic Theory

    Busy Hour

    Erlangs

    Traffic Probability Assumptions

    Traffic Calculations

    Call Density Matrix

    Bandwidth Calculations

    Security Implications of VoIP Networks

    Security Policies for VoIP Networks

    Threats to VoIP

    Secure LAN Design

    Communicating Through a Firewall

    Delivering VoIP over a VPN

Summary

Chapter Review Questions

Lab Exercise: RTP Header Compression

    Task 1: Change the Load Interval on Router R2’s Serial Interface

    Task 2: Take a Baseline Measurement

    Task 3: Enable cRTP

    Task 4: Verify cRTP

    Suggested Solution

Chapter 6 VoIP Signaling and Call Control Protocols

The Need for Signaling and Call Control

    VoIP Signaling

    Call Control Models

    Call Control Translation

    Call Setup

    Call Administration and Accounting

H.323 Concepts and Configuration

    H.323 and IP

    Functional Components of H.323

    H.323 Gateways

    IP-to-IP Gateways

    H.323 Gatekeepers

    Multipoint Conferences

    H.323 Call Establishment and Maintenance

    RAS Messages

    Call Flows

    Types of Multipoint Conferences

    Deploying and Configuring H.323

    SIP Concepts and Configuration

    SIP and Associated Standards

    Cisco SIP Support

    SIP Components

    SIP Applications

    SIP Messages

    Status Codes

    SIP Addressing

    SIP Call Setup Models

    Robust SIP Design

    Cisco’s Implementation of SIP

    Configuring SIP on a Cisco Router

    Monitoring and Troubleshooting SIP

MGCP Concepts and Configuration

    MGCP and Its Associated Standards

    Basic MGCP Components

    Basic MGCP Concepts

    MGCP Sessions

    MGCP Control Commands

    MGCP Call Flows

    Robust MGCP Design

    Cisco's Implementation of MGCP

    Configuring MGCP

    Cisco Unified CallManager MGCP Configuration

    Monitoring and Troubleshooting MGCP

Comparing Call Control Models

    Call Control Model Feature Comparison

    Strengths of H.323, SIP, and MGCP

    Selecting Appropriate Call Control

Summary

Chapter Review Questions

Lab Exercise: H.323 Gatekeeper

    Task 1: Configure the H.323 Gatekeeper

    Task 2: Configure H.323 Gateways

    Task 3: Verify the Configuration

    Suggested Solution

Chapter 7 Improving and Maintaining Voice Quality

Optimizing Voice Quality

    Factors that Affect Voice Quality

    Quality Metrics

    Objectives of QoS

AutoQoS

    AutoQoS Features

    Configuring AutoQoS on a Router

    AutoQoS for Enterprise

    Configuring AutoQoS on a Catalyst Switch

Implementing Call Admission Control

    Effects of Bandwidth Oversubscription

    CAC Operation

    RSVP

    CAC Tools

Summary

Chapter Review Questions

Lab Exercise: Router AutoQoS

    Task 1: Configure AutoQoS on the Slower Interface

    Task 2: Configure AutoQoS on the Faster Interface

    Task 3: Exercise Verification

    Suggested Solution

Appendix A Answers to Chapter Review Questions

Appendix B Cisco VoIP Applications

Glossary

Index

Downloadable Sample Chapter

Download - 226 KB -- Chapter 3: Voice Interface Configuration

Errata

Errata -- 31 KB