%0 Conference Proceedings %T SIP HEADER BASED FEATURE EXTRACTION FOR SPIT ATTACKS IN A COMPREHENSIVE ANTI-SPIT FRAMEWORK %A Khosravi Roshkhari, Hossein %A Yaghmaee Moghaddam, Mohammad Hossein %A Sadoghi Yazdi, Hadi %J 22nd IASTED International Symposia on Modelling and Simulation:MS 2011 %D 2011