Abstract :
Internet Telephony (Voice over Internet Protocol, VoIP), a telephony service which is based in packet transmission through IP networks, is becoming increasingly popular. Besides the obvious advantages of VoIP technology, in terms of cost reduction, user portability, and sophisticated end-user services, the use of the Internet as VoIPʹs main infrastructure introduces several threats and vulnerabilities. Most of these threats and vulnerabilities are related to the e-mail Spam phenomenon, which - in the case of VoIP context - is called Spam over Internet Telephony (SPIT). The scope of this paper is twofold: to study and evaluate the current anti-SPIT techniques and mechanisms and to propose a new architecture for managing SPIT.
