| title | ISBN-13 (ISBN-10) | year of publica- tion | other author(s) |
|---|---|---|---|
| Hacking Exposed Unified Communications & VoIP Security Secrets & Solutions, Second Edition | 978-0-07-179876-1 (0-07-179876-5) | 2013 | Mark Collier |
| Hacking Exposed VoIP: Voice Over IP Security Secrets & Solutions | 978-0-07-226364-0 (0-07-226364-4) | 2006 | " |