Companion Web Site Voice SPAM or SPIT refers to bulk, unsolicited , automatically generated calls. As more and more VoIP is deployed and enterprises use SIP to interconnect to one another through the public network, you can expect SPIT to become as common as email SPAM. When SPIT occurs, it is going to be more difficult to address than email SPAM, due to its real-time nature and the difficulty in converting speech to text for content analysis. SPIT is easy to generate, and we provide a tool and instructions for doing so on our website http://www.hackingvoip.com. Fortunately, countermeasures are possible, but they will require action and cooperation within the VoIP industry, as well as deployment of SPIT mitigation products within enterprises .