VIAT? What’s that?

VIAT means Verfahren zur Identifikation und Abwehr von Telefon-SPAM which translates to Method for the Identification and Blocking of Telephone-SPAM. VIAT is a research project (Period of time: July 2009 – December 2012).

Who is involved in VIAT?

VIAT is a project of the Cologne University of Applied Sciences (project management) in cooperation with the TU Braunschweig and the companys IPTEGO GmbH and Sirrix AG.

Who funds VIAT?

The project is significantly financed by the Bundesministerium für Bildung und Forschung (BMBF) and supported by the involved companys.

How does the new procedure work?

It is possible to detect robocalls or SPIT by taking and analysing a robust audio-fingerprint. Research, optimization and integration of this procedure is part of the project.


What is SPIT?

SPIT is an acronym for SPAM over IP-Telephony

Isn’t it too late to identify SPIT after the call has been set up?

The first SPAM calls can’t be blocked but are used for detection. The SPAM-caller is put on a blacklist and further calls are blocked during call setup if this procedure is activated at the service provider of the callee.

Isn’t it possible to change the identity to bypass the blacklist?

Although it could be possible (e.g. through Bot-Nets), it is not as easy to register or hijack a valid telephone extension as an e-mail account. Furthermore the System can be used to automatically track a spammer afterwards. In Germany telemarketing without permission of the callee is illegal and could thus be fined.

Leave a Reply