Comparison of signaling and media approaches to detect VoIP SPIT attack

This paper gives a review about spam over internet telephony attack on voice over IP networks. This paper starts by explaining why IP networks became the most dominant type of information networks and how it is better than the legacy PSTN for connecting users all over the world. Requirements for carrying voice over IP networks are discussed in terms of both devices and protocols. There are a number of challenges for voice over IP networks and security attacks are at the top. This paper concentrates on SPIT attack and its detection methods which are signaling and media. Each approach is discussed by showing its characteristics, how it works in addition to its pros and cons. A virtual VoIP network is created to conduct an experiment to compare these presented approaches.