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Security Considerations for Voice Over IP Systems



David R. Kuhn, Thomas J. Walsh, S G. Fries


Voice over Internet Protocol (VOIP) refers to the transmission of speech across data-style networks. This form of transmission is conceptually superior to conventional circuit switched communication in many ways. However, a plethora of security issues are associated with still-evolving VOIP technology. This publication introduces VOIP, its security challenges, and potential countermeasures for VOIP vulnerabilities.
Special Publication (NIST SP) - 800-58
Report Number


Telecommunications security, Voice Over Internet Protocol, VOIP, vulnerabilities


Kuhn, D. , Walsh, T. and Fries, S. (2005), Security Considerations for Voice Over IP Systems, Special Publication (NIST SP), National Institute of Standards and Technology, Gaithersburg, MD, [online], (Accessed April 16, 2024)
Created January 1, 2005, Updated February 19, 2017