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Cisco Voice over IP (CVOICE) (Authorized Self-Study Guide) Kevin Wallace

Cisco Voice over IP (CVOICE) (Authorized Self-Study Guide) By Kevin Wallace

Cisco Voice over IP (CVOICE) (Authorized Self-Study Guide) by Kevin Wallace


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Cisco Voice over IP (CVOICE) (Authorized Self-Study Guide) Summary

Cisco Voice over IP (CVOICE) (Authorized Self-Study Guide) by Kevin Wallace

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 CCNP (R) 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 IOS (R) 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

About Kevin Wallace

Kevin Wallace

, CCIE No. 7945, is a certified Cisco instructor, and he teaches courses in the Cisco CCSP, CCVP, and CCNP 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. Kevin holds a bachelor of science degree in electrical engineering from the University of Kentucky. Kevin also is a CCVP, CCSP, CCNP, and CCDP with multiple Cisco security and IP communications specializations.

Table of Contents

Chapter 1 Introducing Voice over IP Networks 3

VoIP Fundamentals 3

Cisco Unified Communications Architecture 3

VoIP Overview 4

Components of a VoIP Network 6

VoIP Functions 7

VoIP Signaling Protocols 9

The H.323 Umbrella 9

MGCP 11

Session Initiation Protocol 12

Skinny Client Control Protocol 12

Comparing VoIP Signaling Protocols 12

VoIP Service Considerations 15

Media Transmission Protocols 16

Real-Time Transport Protocol 16

RTP Control Protocol 17

Compressed RTP 18

Secure RTP 20

Introducing VoIP Gateways 21

Understanding Gateways 21

Modern Gateway Hardware Platforms 24

Well-Known and Widely Used Enterprise Models 27

Standalone Voice Gateways 30

Summary of Voice Gateways 34

IP Telephony Deployment Models 36

Summary 50

Chapter Review Questions 51

Chapter 2 Considering VoIP Design Elements 55

VoIP Fundamentals 55

IP Networking and Audio Clarity 55

Audio Quality Measurement 61

VoIP and QoS 63

Transporting Modulated Data over IP Networks 66

Understanding Fax/Modem Pass-Through, Relay, and Store and Forward 67

Modem Relay 71

Gateway Signaling Protocols and Fax Pass-Through and Relay 74

DTMF Support 82

Processing Voice Packets with Codecs and DSPs 84

Codecs 85

Impact of Voice Samples and Packet Size on Bandwidth 87

Data Link Overhead 88

Security and Tunneling Overhead 88

Calculating the Total Bandwidth for a VoIP Call 88

Effects of Voice Activity Detection on Bandwidth 90

DSP 91

Codec Complexity 95

DSP Requirements for Media Resources 98

Configuring Conferencing and Transcoding on Voice Gateways 107

Cisco IOS Configuration Commands for Enhanced Media

Resources 114

Verifying Media Resources 119

Summary 120

Chapter Review Questions 121

Chapter 3 Routing Calls over Analog Voice Ports 125

Introducing Analog Voice Applications on Cisco IOS Routers 125

Local Calls 125

On-Net Calls 126

PLAR Calls 127

PBX-to-PBX Calls 128

Intercluster Trunk Calls 129

Summarizing Examples of Voice Port Applications 131

Introducing Analog Voice Ports on Cisco IOS Routers 132

Voice Ports 132

Analog Voice Ports 133

Configuring Analog Voice Ports 144

Trunks 150

Centralized Automated Message Accounting 154

Direct Inward Dial 157

Timers and Timing 159

Verifying Voice Ports 160

Introducing Dial Peers 164

Understanding Call Legs 164

Understanding Dial Peers 165

Configuring POTS Dial Peers 167

Configuring VoIP Dial Peers 169

Configuring Destination Pattern Options 172

Matching Inbound Dial Peers 175

Characteristics of the Default Dial Peer 177

Matching Outbound Dial Peers 179

Summary 180

Chapter Review Questions 181

Chapter 4 Performing Call Signaling over Digital Voice Ports 185

Introducing Digital Voice Ports 185

Digital Trunks 186

T1 CAS 188

E1 R2 CAS 189

ISDN 191

ISDN Signaling 195

Configuring a T1 CAS Trunk 208

Configuring an E1 R2 Trunk 218

Configuring an ISDN Trunk 220

Verifying Digital Voice Ports 225

Using QSIG for Digital Signaling 232

QSIG Overview 232

Configuring QSIG Support 236

Verifying QSIG Trunks 239

Summary 242

Chapter Review Questions 243

Chapter 5 Examining VoIP Gateways and Gateway Control Protocols 247

Configuring H.323 247

H.323 Gateway Overview 247

Why H.323 250

H.323 Network Components 253

H.323 Call Establishment and Maintenance 258

H.323 Call Flows 259

H.323 Multipoint Conferences 261

Configuring H.323 Gateways 263

Verifying an H.323 Gateway 274

Implementing MGCP Gateways 275

MGCP Overview 275

Why MGCP 276

MGCP Architecture 277

Basic MGCP Concepts 280

MGCP Call Flows 283

Configuring MGCP Gateways 285

Verifying MGCP 290

Implementing SIP Gateways 293

SIP Overview 294

Why SIP 296

SIP Architecture 297

SIP Call Flow 299

SIP Addressing 302

SIP DTMF Considerations 304

Configuring SIP 305

Verifying SIP Gateways 309

Summary 315

Chapter Review Questions 316

Chapter 6 Identifying Dial Plan Characteristics 321

Introducing Dial Plans 321

Dial Plan Overview 321

Endpoint Addressing 324

Call Routing and Path Selection 325

Digit Manipulation 325

Calling Privileges 326

Call Coverage 326

Scalable Dial Plans 326

PSTN Dial Plan Requirements 328

ISDN Dial Plan Requirements 330

Configuring PSTN Dial Plans 331

Verifying PSTN Dial Plans 341

Numbering Plan Fundamentals 348

Numbering Plan Overview 348

Numbering Plan Categories 349

Scalable Numbering Plans 351

Overlapping Numbering Plans 352

Private and Public Numbering Plan Integration 353

Enhancing and Extending an Existing Plan to Accommodate VoIP 355

911 Services 357

Implementing a Numbering Plan Example 359

Summary 361

Chapter Review Questions 362

Chapter 7 Configuring Advanced Dial Plans 367

Configuring Digit Manipulation 367

Digit Manipulation 367

Digit Collection and Consumption 370

Digit Stripping 371

Digit Forwarding 372

Digit Prefixing 373

Number Expansion 374

Caller ID Number Manipulation 377

Voice Translation Rules and Profiles 380

Voice Translation Profiles Versus the dialplan-pattern Command 390

Configuring Digit Manipulation 393

Configuring Path Selection 397

Call Routing and Path Selection 397

Dial Peer Matching 398

Matching Dial Peers in a Hunt Group 404

H.323 Dial-Peer Configuration Best Practices 405

Path Selection Strategies 406

Site-Code Dialing and Toll-Bypass 407

Tail-End Hop-Off (TEHO) 409

Configuring Site-Code Dialing and Toll-Bypass 410

Outbound Site-Code Dialing Example 415

Inbound Site-Code Dialing Example 416

Configuring TEHO 417

Implementing Calling Privileges on Cisco IOS Gateways 420

Calling Privileges 420

Understanding COR on Cisco IOS Gateways 421

Understanding COR for SRST and CME 426

Configuring COR for Cisco Unified Communications Manager

Express 427

Configuring COR for SRST 433

Verifying COR 434

Summary 434

Chapter Review Questions 436

Chapter 8 Configuring H.323 Gatekeepers 441

H.323 Gatekeeper Fundamentals 441

Gatekeeper Overview 441

Gatekeeper Hardware and Software Requirements 445

Gatekeeper Signaling 445

Call Flows with a Gatekeeper 464

Zone Prefixes 468

Technology Prefixes 469

Gatekeeper Call Routing 471

Directory Gatekeepers 479

Gatekeeper Transaction Message Protocol 486

Verifying Gatekeepers 487

Configuring H.323 Gatekeepers 489

Gatekeeper Configuration Steps 489

Configuring Gatekeeper Zones 493

Configuring Zone Prefixes 494

Configuring Technology Prefixes 495

Configuring Gateways to Use H.323 Gatekeepers 497

Dial-Peer Configuration 500

Verifying Gatekeeper Functionality 502

Providing Call Admission Control with H.323 504

Gatekeeper Zone Bandwidth Operation 504

RAI in Gatekeeper Networks 510

Summary 515

Chapter Review Questions 516

Chapter 9 Establishing a Connection with an Internet Telephony Service

Provider 521

Introducing the Cisco Unified Border Element Gateway 521

Cisco Unified Border Element Overview 521

Cisco IOS Image Support for Cisco UBE Gateways 523

Cisco UBE Gateways in Enterprise Environments 523

Protocol Interworking on Cisco UBE Gateways 526

Media Flows on Cisco UBE Gateways 528

Codec Filtering on Cisco UBEs 530

RSVP-Based CAC on Cisco UBEs 530

Cisco UBE Gateways and Gatekeeper Interworking 532

Cisco UBE Gateway Call Flows 533

Configuring Cisco Unified Border Elements 538

Protocol Interworking Command 538

Configuring H.323-to-H.323 Interworking 539

Configuring H.323-to-SIP Interworking 541

Media Flow and Transparent Codec Commands 542

Configuring Transparent Codec Pass-Through and Media Flow-Around 543

Configuring Cisco UBEs and Via-Zone Gatekeepers 544

Verifying Cisco UBEs and Via-Zone Gatekeepers 546

Summary 549

Chapter Review Questions 550

Appendix A Answers to Chapter Review Questions 553

Additional information

GOR004232267
9781587055546
1587055546
Cisco Voice over IP (CVOICE) (Authorized Self-Study Guide) by Kevin Wallace
Used - Very Good
Hardback
Pearson Education (US)
20080724
600
N/A
Book picture is for illustrative purposes only, actual binding, cover or edition may vary.
This is a used book - there is no escaping the fact it has been read by someone else and it will show signs of wear and previous use. Overall we expect it to be in very good condition, but if you are not entirely satisfied please get in touch with us

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