The harassment telephone interception system is a system which provides calling harassment interception

called harassment interception and second operation interception. It also supports monitoring and control functions such as concurrency control

white list and report. It is effective in reducing harassment calls

improving the IMS phone user experience and reducing the economic loss of operators. This paper firstly proposes an overall architecture of harassment telephone interception system. Secondly

it focuses on the work mechanism of decision analysis subsystem and the identification process of harassment telephone based on rules and statistical forms of sliding window. In the end

the intercept process of harassment telephone is presented.