摘要：SIP servers are playing vital role in preserving multimedia, voice, data and video file storage and distribution through Voice over Internet IP services. The increase popularity of SIP servers through VOIP has attracted the attention of cyber terrorist to instigate the most damaging attacks to eavesdrop the information and compromise the servers with DDoS attacks. The recent evidences of victimization of SIP servers for the attack of DDoS through VOIP networks made this topic to be addressed with high intensity. DDoS attacks are affecting VOIP networks and SIP servers by injecting malicious virus data packets along with the normal user data sent from different locations. The proposed literature survey is focusing on measures to be taken care of to protect SIP servers from DDoS attacks with several possible novel mechanisms
关键词：SIP Servers; DDoS Attacks; Voice; Data; Video and multimedia transmissions.
