Porter, Thomas.
Practical VoIP Security [electronic resource] / Thomas Porter, et al. - Rockland, MA : Syngress Publishing, c2006. - xxviii, 563 p. : ill.
Includes index.
Electronic reproduction.
Palo Alto, Calif. :
ebrary,
2009.
Available via World Wide Web.
Access may be limited to ebrary affiliated libraries.
Internet telephony--Security measures.
Telecommunication.
Electronic books.
TK5105.8865 / .P67 2006eb
Practical VoIP Security [electronic resource] / Thomas Porter, et al. - Rockland, MA : Syngress Publishing, c2006. - xxviii, 563 p. : ill.
Includes index.
Electronic reproduction.
Palo Alto, Calif. :
ebrary,
2009.
Available via World Wide Web.
Access may be limited to ebrary affiliated libraries.
Internet telephony--Security measures.
Telecommunication.
Electronic books.
TK5105.8865 / .P67 2006eb