A policy framework for personalized and role-based SPIT prevention

Abstract

Voice over IP (VoIP) deployment is increasing at fast pace. Due to the expected decrease of cost for call initiations with VoIP and the risk of infected devices, Spam over IP Telephony (SPIT) is likely to be a serious threat for VoIP service architectures in the near future. Since SPIT is a very personal matter, users must be able to express the level of intrusiveness acceptable to them when receiving calls, i.e., the degree to which a callee is willing to be disturbed by potentially unsolicited calls. Further, companies have a need to enforce role-based and status-based SPIT protection policies in order to allow, e.g., a higher level of intrusiveness for a secretary during the day than for the CEO on his/her mobile at night.