Eavesdropping and interception security hole and its solution over VoIP service

Voice over Internet Protocol (VoIP) has grown substantially in the past ten years when compared to the public switched telephone network (PSTN) network, a circuit switched system because of its advantages of low cost and flexible advanced digital communication features. VoIP is an application that runs on the internet, and thus acquires its inherent security issues. We will take a closer look at VoIP standards and architecture with focus on security methodologies implementations In this paper, we consider the concerning requirements of VoIP security with emphasis on identifying its vulnerabilities to Eavesdropping and suggesting ways in order to minimize security risks caused from it. We examine how VoIP attacks are carried out and the issues faced while dealing with them. We analyze security considerations and ways of mitigating threats with the help of tools and techniques. VoIP security attacks are carried out using different approaches, we discuss ways so that these attacks can be prevented. Furthermore, we consider best practices needed to be followed to identify, assess, analyze and subdue VoIP Security threats.