Summary
Authorized Self-Study Guide Cisco Voice over IP (CVOICE) Third Edition Foundation learning for CVOICE exam 642-436 Kevin Wallace, CCIE No. 7945 Cisco Voice over IP (CVOICE),Third Edition, is a Cisco-authorized, self-paced learning tool for CCVP foundation learning. This book provides you with the knowledge and skills required to plan, design, and deploy a Cisco voice-over-IP (VoIP) network and to integrate gateways and gatekeepers into an enterprise VoIP network. By reading this book, you will gain a thorough understanding of converged voice and data networks and also the challenges you will face implementing various network technologies. Cisco Voice over IP (CVOICE)presents you with information on the foundational elements of VoIP calls, the description of dial plans, and the implementation of gateways, gatekeepers, and Cisco Unified Border Elements (Cisco UBEs). The book gives you the information needed to implement and support data and voice integration solutions at the network-access level. Whether you are preparing for CCVP certification or simply want to gain a better understanding of VoIP fundamentals, you will benefit from the foundation information presented in this book. Cisco Voice over IP (CVOICE), Third Edition, is part of a recommended learning path from Cisco that includes simulation and hands-on training from authorized Cisco Learning Partners and self-study products from Cisco Press. To find out more about instructor-led training, e-learning, and hands-on instruction offered by authorized Cisco Learning Partners worldwide, please visit http://www.cisco.com/go/authorizedtraining. Kevin Wallace, CCIE No. 7945, is a certified Cisco instructor, and he teaches courses in the Cisco CCSP, CCVP, and CCNPreg; tracks. With 19 years of Cisco networking experience, Kevin has been a network design specialist for the Walt Disney World Resort and a network manager for Eastern Kentucky University. Integrate VoIP into an existing data network Design a VoIP network for optimal voice quality Examine the various call types in a VoIP network Configure analog voice interfaces and dial peers Perform call signaling over digital voice ports Implement H.323, MGCP, and SIP protocols on Cisco IOSreg; gateways Identify dial plan characteristics Configure advanced dial plans Deploy H.323 gatekeepers Implement a Cisco UBE router to provide protocol interworking Companion CD-ROM The CD-ROM contains a bonus 90 minutes of video demonstrations. Watch the author perform fundamental CVoice configuration tasks in a series of six video-on-demand labs. This volume is in the Certification Self-Study Series offered by Cisco Press. Books in this series provide officially developed self-study solutions to help networking professionals understand technology implementations and prepare for the Cisco Career Certifications examinations. Category: Voice over IP Covers: CVoice exam 642-436
Table of Contents
Introducing Voice over IP Networks | p. 3 |
VoIP Fundamentals | p. 3 |
Cisco Unified Communications Architecture | p. 3 |
VoIP Overview | p. 4 |
Components of a VoIP Network | p. 6 |
VoIP Functions | p. 7 |
VoIP Signaling Protocols | p. 9 |
The H.323 Umbrella 9 MGCP | p. 11 |
Session Initiation Protocol | p. 12 |
Skinny Client Control Protocol | p. 12 |
Comparing VoIP Signaling Protocols | p. 12 |
VoIP Service Considerations | p. 15 |
Media Transmission Protocols | p. 16 |
Real-Time Transport Protocol | p. 16 |
RTP Control Protocol | p. 17 |
Compressed RTP | p. 18 |
Secure RTP 20 Introducing VoIP Gateways | p. 21 |
Understanding Gateways | p. 21 |
Modern Gateway Hardware Platforms | p. 24 |
Well-Known and Widely Used Enterprise Models | p. 27 |
Standalone Voice Gateways | p. 30 |
Summary of Voice Gateways | p. 34 |
IP Telephony Deployment Models | p. 36 |
Summary | p. 50 |
Chapter Review Questions | p. 51 |
Considering VoIP Design Elements | p. 55 |
VoIP Fundamentals | p. 55 |
IP Networking and Audio Clarity | p. 55 |
Audio Quality Measurement | p. 61 |
VoIP and QoS | p. 63 |
Transporting Modulated Data over IP Networks | p. 66 |
Understanding Fax/Modem Pass-Through, Relay, and Store and Forward | p. 67 |
Modem Relay | p. 71 |
Gateway Signaling Protocols and Fax Pass-Through and Relay | p. 74 |
DTMF Support | p. 82 |
Table of Contents provided by Publisher. All Rights Reserved. |
Excerpts
Introduction IntroductionWith the rapid adoption of Voice over IP (VoIP), many telephony and data network technicians, engineers, and designers are now working to become proficient in VoIP. Professional certifications, such as the Cisco Certified Voice Professional (CCVP) certification, offer validation of an employee's or a consultant's competency in specific technical areas.This book mirrors the level of detail found in the Cisco CVOICE Version 6.0 course, which many CCVP candidates select as their first course in the CCVP track. Version 6.0 represents a significant update over Version 5.0 of the CVOICE course, because Version 6.0 integrates much of the content previously found in the more advanced Implementing Cisco Voice Gateways and Gatekeepers (GWGK) course.A fundamental understanding of traditional telephony, however, would certainly benefit a CVOICE student or a reader of this book. If you think you lack a fundamental understanding of traditional telephony, a recommended companion for this book is the Cisco PressVoice over IP First-Stepbook (ISBN: 978-1-58720-156-1), which is also written by this book's author.Voice over IP First-Stepis written in a conversational tone and teaches concepts surrounding traditional telephony and how those concepts translate into a VoIP environment. Additional Study ResourcesThis book contains a CD with approximately 90 minutes of video, where you will see the author demonstrate a variety of basic VoIP configurations. The videos were originally developed for NetMaster Class ( http://www.netmasterclass.com ), a company specializing in CCIE Lab training. These video-on-demand titles are as follows:Analog Voice Port ConfigurationDigital Voice Port ConfigurationDial Peer ConfigurationH.323 ConfigurationMGCP ConfigurationSIP ConfigurationAs an additional reference for readers pursuing the CCVP certification, the author has created a website with recommended study resources (some free and some recommended for purchase) for all courses in the CCVP track. These recommendations can be found at the following URL: http://www.voipcertprep.com . Goals and MethodsThe primary objective of this book is to help the reader pass the 642-436 CVOICE exam, which is a required exam for the CCVP certification and for the Cisco Rich Media Communications Specialist specialization.One key methodology used in this book is to help you discover the exam topics that you need to review in more depth, to help you fully understand and remember those details, and to help you prove to yourself that you have retained your knowledge of those topics. This book does not try to help you pass by memorization, but helps you truly learn and understand the topics by using the following methods:Helping you discover which test topics you have not masteredProviding explanations and information to fill in your knowledge gaps, including detailed illustrations and topologies as well as sample configurationsProviding exam practice questions to confirm your understanding of core concepts Who Should Read This Book?This book is primarily targeted toward candidates of the CVOICE exam. However, because CVOICE is one of the Cisco foundational VoIP courses, this book also serves as a VoIP primer to noncertification readers.Many Cisco resellers actively encourage their employees to attain Cisco certifications and seek new employees already possessing Cisco certifications, for deeper discounts when purchasing Cisco products. Additionally, having attained a certification communicates to your employer or custom