@misc{25016,
  author = {Thomas Walsh and David Kuhn},
  title = {Securing Voice Over Internet Protocol (IP) Networks},
  year = {2004},
  month = {2004-10-01},
  publisher = {ITL Bulletin, National Institute of Standards and Technology, Gaithersburg, MD},
  url = {https://tsapps.nist.gov/publication/get_pdf.cfm?pub_id=150236},
  language = {en},
}