International Journal of Computer Applications
The most common way of communication is obviously through voice exchange. There are mainly two ways by which voice can be easily transmitted over a network: PSTN (Public Switched Telephone Network) and VoIP (Voice over Internet Protocol). The VoIP is relatively new and is gaining more and more popularity as it offers a wide range of features and is much more cost effective as compared to the traditional PSTN. But the VoIP brings with it certain security threats which need to be resolved in order to make it a more reliable source of communication. One of the most concerning security threats of VoIP technology is VoIP Spoofing.