Goals of SPIDER

Interest in Voice over IP (VoIP) has risen substantially in recent times, both from service providers and from consumers' point of view. While the concept of transferring Voice over data networks like the Internet is known already for a long time, only now this technology has become a major counterpart to the classic Public Switched Telephone Network (PSTN).

With Voice over IP calls being offered for free or for a flat rate, Spam over Internet Telephony (SPIT) has at least the same potential to become a major annoyance for users worldwide, as it is the current situation with e-mail spam. From a technological point of view, both communication methods have many similarities. For example, calling a huge user-base through a VoIP solution can be very cost effective for any sender; it can also be easily personalized.

While such a development would naturally be annoying to individual users, a large spread of SPIT would reduce the attractiveness of

.. in the context of SPIDER, a set of tools and mechanisms will be designed, developed and extensively tested ..

VoIP in general and slow down its further commercial development. The SPIDER project will deliver a solution for the participating SMEs to detect and prevent unsolicited VoIP calls and instant messages. This solution will not only be designed to achieve a high detection rate, but it will also be optimized to be resource efficient as well. Without such balance, SPIT prevention will introduce high deployment costs and large processing delays, hence reducing the incentives for providers and users to actually deploy such tools.

The design of the SPIDER SPIT prevention tools will be based on two aspects. On the one side, we will be benefiting from well known SPAM prevention technologies, such as white and black lists or filtering algorithms. On the other side, novel approaches, which are derived from the VoIP technology itself, such as inter-provider peering mechanisms or security enhancements for the used signaling protocols, will be also investigated and developed. Thereby, in the context of SPIDER, a set of tools and mechanisms will be designed, developed and extensively tested, so as to enable the participating partners to roll-out products and services for anti-SPIT. These tools and technologies will be based not only on the latest technologies and innovative research solutions, but also strengthened with the practical experience gained through the deployment of those tools and technologies during the project period.