Design and Implementation of Anti-Spam Service over a SIP User Agent

• Main Authors: Jhih-Wei Shih, 施智維
• Other Authors: Chun-Hung Lin
• Format: Others
• Language: zh-TW
• Published: 2008
• Online Access: http://ndltd.ncl.edu.tw/handle/j4va2j

碩士 === 國立中山大學 === 資訊工程學系研究所 === 96 === With the popularity of the VoIP, the method of communication is gradually changing from email to internet telephony. The email communication is always being used for advertising and phishing. Also, this junk information may be used for internet telephony and may disturb users while the internet telephony becomes more and more popular. SPIT (Spam for Internet Telephony)may become a serious problem in the network. Moreover, the influence cause by internet telephony maybe more serious than email. Hence, this paper wants to provide a SIP terminal that can filter the caller. With limited resources, the filter uses white and black lists and integrated with back-end SPIT database to design an efficient SPIT filter. Through this filter, we can block the spam call efficiently and keep the quality of the VoIP service.