Cisco Voice Gateways and Gatekeepers - page 1
- Cisco Voice Gateways and Gatekeepers
- Cisco Voice Gateways and Gatekeepers
- Table of Contents
- Copyright
- About the Authors
- About the Technical Reviewers
- Acknowledgments
- Icons Used in This Book
- Command Syntax Conventions
- Foreword
- Introduction
- How This Book Is Organized
- Part I: Voice Gateways and Gatekeepers
- Chapter 1. Gateways and Gatekeepers
- The Role of Voice Gateways
- The Role of Voice Gatekeepers
- The Role of IP-to-IP Gateways
- Introduction to Voice Protocols
- Call Control Agents
- Deployment Scenarios
- Case Study: Introduction
- Chapter Review Questions
- Part II: Gateways
- Chapter 2. Media Gateway Control Protocol
- Introduction to MGCP
- MGCP Operation
- Call Flow with MGCP
- Dial Plan Considerations
- Implementing MGCP Gateways
- Securing MGCP Gateways
- Troubleshooting Tools
- Case Study: Configuring an MGCP Gateway
- Review Questions
- Chapter 3. H.323
- H.323 Specifications
- H.323 Network Components
- Call Flow
- H.323 Protocol Pros and Cons
- When to Use H.323
- Dial Plan Considerations
- Implementing H.323 Gateways
- Securing H.323 Gateways
- Troubleshooting Tools
- Case Study: Configuring an H.323 Gateway
- Review Questions
- Chapter 4. Session Initiation Protocol
- Description of SIP
- SIP Call Flow
- SIP Pros and Cons
- When to Use SIP
- Dial Plan Considerations
- Implementing SIP Gateways
- Securing SIP Gateways
- Allowing H.323 to SIP Connections
- Troubleshooting Tools
- Case Study: Configuring SIP Between a Gateway and CallManager 5.x
- Review Questions
- Chapter 5. Circuit Options
- Circuit Signaling
- Analog Circuits
- Digital Circuits
- Review Questions
- Chapter 6. Connecting to the PSTN
- PSTN Circuit Selection Overview
- Analog Trunks
- Digital Trunks
- Case Study: Add an E1 R2 Connection to the Leeds Gateway
- Review Questions
- Chapter 7. Connecting to PBXs
- Analog Trunks
- Digital Trunks
- Configuring Transparent Common Channel Signaling
- Case Study: Implementing a Cisco Voice Gateway at the Shanghai Office
- Review Questions
- Chapter 8. Connecting to an IP WAN
- Applications for Connecting to an IP WAN
- Design Considerations
- Quality of Service
- Providing Fax and Modem Services
- Security
