Books & White Papers

Books

Voice over IP Fundamentals By: Jonathan Davidson, James Peters, Brian Gracely

Integrating Voice and Data Networks By: Scott Keagy

Voice Over IP Technologies By: Mark A. Miller, Mark A. Miller

SIP Demystified By: Gonzalo Camarillo

White Papers

"Vulnerabilities and Security Limitations of current IP Telephony Systems"

A white paper by Jason Halpern of Cisco discusses security of VoIP in the context of Cisco's SAFE framework.

A 10-page white paper from Vitel Software offers some practical advice on protocols, hardware, and monitoring as useful tools in securing VoIP.

"Vulnerabilities and Security Limitations of current IP Telephony Systems"

"The Value of VoIP Security"

"VoIP Security "

"Securing VoIP Networks with Specific Techniques, Comprehensive Policies and VoIP-Capable Firewalls"