Threshold-based generic scheme for encrypted and tunneled Voice Flows Detection over IP Networks

摘要: VoIP usage is rapidly growing due to its cost effectiveness, dramatic functionality over the traditional telephone network and compatibility with public switched (PSTN). In some countries, like Pakistan, commercial of prohibited. Internet service providers (ISPs) telecommunication authorities are interested in detecting calls either block or prioritize them. So detection important for both types authorities. Signature-based, port-based, pattern-based techniques inefficient complex confidential security tunneling mechanisms used by VoIP. this paper, we propose a generic, robust, efficient, practically implementable statistical analysis-based solution identify encrypted, non-encrypted, tunneled media (voice) flows using threshold values flow parameters. We have made comparison existing evaluated our system respect accuracy efficiency. Our has 97.54% direct rate .00015% false positive rate.