Stop the Flood - Perimeter Security- and Overload- Pre-evaluation in Carrier Grade VoIP Infrastructures.

With the upcoming introduction of the Session Initiation Protocol to carrier grade telecommunication infrastructures, the threat of attacks is increasing massively. Multiple types of unsolicited communication, like high and low rate Denial-of-Service attacks as well as Spam over Internet Telephony driven by Botnets will be an upcoming risk for all telecommunication operators.