NIST SP 800-58
Voice Over IP Security
Note to Readers
The Information Technology Laboratory (ITL) at the National Institute of Standards and Technology
(NIST) promotes the U.S. economy and public welfare by providing technical leadership for the
Nation’s measurement and standards infrastructure.
ITL develops tests, test methods, reference data,
proof of concept implementations, and technical analysis to advance the development and productive
use of information technology.
ITL’s responsibilities include the development of technical, physical,
administrative, and management standards and guidelines for the cost-effective security and privacy of
sensitive unclassified information in Federal computer systems.
This document is a publication of the National Institute of Standards and Technology (NIST) and
is not subject to U.S. copyright. Certain commercial entities, equipment, or materials may be
identified in this document in order to describe an experimental procedure or concept adequately.
Such identification is not intended to imply recommendation or endorsement by the National
Institute of Standards and Technology, nor is it intended to imply that the entities, materials, or
equipment are necessarily the best available for the purpose.
T.J. Walsh and D.R. Kuhn are employees of NIST; S. Fries is an employee of Siemens AG.
For questions or comments on this document, contact email@example.com.
This document has benefited from review and comment by many experts.
want to thank Mike Stauffer, of Booz Allen Hamilton, for his careful review and many
contributions to improving the quality of this publication.
Appendix A is derived from an
internal NIST report by Tony Meehan and Tyler Moore of the University of Tulsa.
people provided us with helpul comments and suggestions for improvements to the first draft
of this document. We are grateful to Tim Grance, John Larson and colleagues at Sprint,
David Waring, Steven Ungar, Larry L. Brock, Ron Rice, John Dabnor,
Susan Landau, Cynthia Des Lauriers, Victor Marshall, Nora Wheeler, Anthony Smith, Curt
Gerald Maguire, Frank Derks, Ben Halpert, Elaine Starkey, William Ryberg, Loraine