@conference {61,
	title = {Defense Against SPIT Using Community Signals},
	booktitle = {Proceedings of the 2009 IEEE International Conference on Intelligence and Security Informatics},
	year = {2009},
	publisher = {IEEE Press},
	organization = {IEEE Press},
	address = {Piscataway, NJ, USA},
	abstract = {<p>Internet telephony has recently gained popularity. Voice over IP (VoIP) has emerged as an alternative to the current public switched telephone network (PSTN) system due to its cost efficiency. Spam inherently becomes a problem in VoIP networks. In this paper, we present our ongoing research in defending VoIP networks against spam by presenting a new defense mechanism using community signals.</p>
},
	isbn = {978-1-4244-4171-6},
	url = {http://dl.acm.org/citation.cfm?id=1706428.1706481},
	author = {Phithakkitnukoon, Santi and Ram Dantu}
}
