Practical VoIP Security
Voice Over IP (VoIP) phone lines now represent over 50% of all new phone line installations. Every one of these new VoIP phone lines and handsets must now be protected from malicious hackers because these devices now reside on the network and are accessible from the Internet just like any server or workstation.\ This book will cover a wide variety of the publicly available exploit tools and how they can be used specifically against VoIP (Voice over IP) Telephony systems. The book will cover...
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This book was written for the thousands of IT professionals—from CIOs to circuit-switched telecom engineers—who are now responsible for deploying and maintaining secure VoIP networks. The book explains the impact on your VoIP network of PSTN, SIP, H.323, firewalls, NAT, encryption, and the regulatory environment. Coverage includes evaluation, design, integration, and management of VoIP networking components, including IP telephones, gateways, gatekeepers, registration servers, media servers, and proxy servers. Throughout the book, the authors rely on their extensive real-world experience to provide readers with practical applications and solutions.
1. Introduction 2. Architectures 3. Hardware 4. Protocols 5. Support Protocols 6. Protocol Security 7. Threats 8. Solutions Overview 9. Reuse Existing Security Infrastructure Wisely 10. Confirm User Identity 11. Active Security Monitoring 12. Logical Segregation 13. Encryption 14. A Note on Regulatory Compliance 15. Recommendations 17. Appendix A: Access List Guidelines
