03222nam a2200397Ii 4500991003250939707536m d cr cn|||||||||070806s2006 maua s 001 0 eng d97815974906031597490601b13655607-39ule_inst132650:132771Elsevier Science & Technologyhttp://www.sciencedirect.comOPELSOPELSTEFA621.3821222Practical VoIP security[electronic resource] /Thomas Porter ... [et al.].Rockland, MA :Syngress Pub. ;[Sebastopol, Calif.] :Distributed by O'Reilly Media,c2006.xxviii, 563 p. :ill. ;23 cm.Includes index.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.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 the attack methodologies that are used against the SIP and H.323 protocols as well as VoIP network infrastructure. Significant emphasis will be placed on both attack and defense techniques. This book is designed to be very hands on and scenario intensive More VoIP phone lines are being installed every day than traditional PBX phone lines VoIP is vulnerable to the same range of attacks of any network device VoIP phones can receive as many Spam voice mails as your e-mail can receive Spam e-mails, and as result must have the same types of anti-spam capabilities.Electronic reproduction.Amsterdam :Elsevier Science & Technology,2007.Mode of access: World Wide Web.System requirements: Web browser.Title from title screen (viewed on Aug. 2, 2007).Access may be restricted to users at subscribing institutions.Internet telephonySecurity measures.Computer networksSecurity measures.Internettelefonie.gttElectronic books.localPorter, Thomas,PhD.authorhttp://id.loc.gov/vocabulary/relators/aut739046Original15974906019781597490603(OCoLC)66279406Referexhttp://www.sciencedirect.com/science/book/9781597490603An electronic book accessible through the World Wide Web; click for information.b1365560724-02-2224-01-08991003250939707536C0TEFPractical VoIP security1463991UNISALENTOle02924-01-08mm -engmau00