Hacking Exposed VoIP: Voice Over IP Security Secrets & Solutions: Voice Over IP Security Secrets and Solutions
by N/A
ISBN 13: 9780072263640
Format: Paperback (539 pages) Publisher: McGraw-Hill Osborne Published: 01 Jan 2007
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Hacking Exposed Unified Communications & VoIP Security Secrets & Solutions, Second Edition
by Mark Collier,David Endler
ISBN 13: 9780071798761
Format: Illustrated (560 pages) Publisher: McGraw-Hill Education Published: 16 Jan 2014