Investigation of VoIP Quality of Service using SRTP Protocol

  • T. Adomkus Kaunas University of Technology
  • E. Kalvaitis Kauno technologijos universitetas


Voice over IP (VoIP) is transforming the telecommunication industry. It offers multiple opportunities such as lower call fees, convergence of voice and data networks, simplification of deployment, and greater integration with multiple applications that offer enhanced multimedia functionality. So it is very important to ensure VoIP security and at the same time its quality of service. It’s discussed common treads to VoIP telephony at this article, to ensure protection from them suggested SRTP. Accomplished modelling with encrypted voice streams and ascertained the influence to VoIP quality of service of SRTP protocol. Observed, that at various time moments SRTP protocol significantly decrease the quality of service. Ill. 6, bibl. 6 (in English; summaries in English, Russian and Lithuanian).