Voice over IP First-Step - page 1
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- Voice over IP First-Step
- Voice over IP First-Step
- Table of Contents
- Copyright
- About the Author
- About the Technical Reviewers
- Acknowledgments
- Icons Used in This Book
- Introduction
- How This Book Is Organized
- Who Ought to Read This Book
- Stuff You ll Find in This Book
- For More Information. . .
- Chapter 1. Touring the History Museum of Telephony
- Dissecting a Telephony Network
- The Public Switched Telephone Network: The Phone System That You Grew Up With
- Private Branch Exchanges: How Big Businesses Talk
- Key Systems: How Small Businesses Talk
- Ringing, Dial Tone, and Other Bells and Whistles
- Case Study: Your Turn to Put the Pieces in Place
- Chapter Summary
- Chapter Review Questions
- Chapter 2. Making Waves: Turning Your Voice into 1s and 0s
- Chopping Your Voice into Byte-Size Pieces
- Squeezing Your Voice into a Smaller Package
- Deciding How Much Bandwidth Is Enough
- Case Study: Your Turn to Choose the Bandwidth
- Chapter Summary
- Chapter Review Questions
- Chapter 3. Paving the Pathway to a Voice over IP Network
- Competing with the Reliability of Existing Phone Systems
- Replacing PBX Trunks: Out with the Old, In with the New
- Connecting a Router to a Phone Line
- Connecting a Router to a Digital Circuit
- Voice over IP in the Home
- Case Study: Your Turn to Put the Pieces of the Puzzle Together
- Chapter Summary
- Chapter Review Questions
- Chapter 4. Meet the Brain of the Voice over IP Network
- Replacing Your Old Phone Switch with Cisco CallManager
- There Is Power in Numbers: Grouping Cisco CallManagers Together
- Designers Challenge: Placing Cisco CallManagers in the Network
- Setting Guidelines for Who Can Make Calls
- Replacing Old Phones with IP Phones
- Selecting Features for IP Phones
- The Cone of Silence: Securing Voice
- A Picture Is Worth a Thousand Words: Adding Video to Voice Calls
- Cisco CallManager in the Express Lane
- Case Study: Your Turn to Do an Extreme Phone System Makeover
- Chapter Summary
- Chapter Review Questions
- Chapter 5. Speaking the Gateways Languages
- Gateway Protocols: The Languages of Love
- The Tried and True Language: H.323
- Cisco s Very Own: MGCP
- The New Kid on the Block: SIP
- Case Study: Your Turn to Be Trilingual
- Chapter Summary
- Chapter Review Questions
- Chapter 6. Why Quality Matters
- Too Many Swimmers in the Bandwidth Pool
- Being Politically Incorrect: Treating Special Traffic in a Special Way
- Giving Voice Top Priority
- Feeling a Little Congested?
- Setting Speed Limits on Traffic
- Doing More with Less (Bandwidth)
- Automatically Configuring QoS with AutoQoS
- Case Study: Your Turn to Use Your New Quality of Service Tools
- Chapter Summary
- Chapter Review Questions
- Chapter 7. VoIP Supporting Roles
- Leave a Message at the Beep: the Cisco Answer to Unified Messaging
- Have Your People Call My People: Creating a Conference Call
- Your Call Is Very Important to Us: The Cisco Answer to Call Centers
- Case Study: Your Turn to Pick Add-On Features
- Chapter Summary
- Review Questions
- Appendix A. Answers to Chapter Review Questions
- Chapter 1
- Chapter 2
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