Security in VoIP-Current Situation and Necessary Development

by Gao, Li Li

Abstract (Summary)
Nowadays, VoIP is getting more and more popular. It helps company to reduce cost, extends service to remote area, produce more service opportunities, etc. Besides these advantages, VoIP also put forward security problems.In this paper, we introduce the popular protocols in VoIP and their security mechanisms, by introducing threats to VoIP, we point out the vulnerabilities with the security mechanisms of each VoIP protocol, and give recommendation for each VoIP protocol. In the conclusion part, we evaluate the vulnerabilities of each protocol, and point out in the future, with better protocol architecture, enhanced security policies, VoIP will has a brighter future.
Bibliographical Information:


School:Linköpings universitet

School Location:Sweden

Source Type:Master's Thesis

Keywords:voip security mgcp threats risk ipsec hash encryption vulnerability protocols h 323 sip rtp rtcp


Date of Publication:12/13/2006

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