A virus screening method includes steps of routing a call between a calling party and a called party of a telephone network, receiving computer data from a first party of the calling party and the called party, and detecting a virus in the computer data. In response to detecting the virus, a step of...http://www.google.es/patents/US5987610?utm_source=gb-gplus-sharePatente US5987610 - Computer virus screening methods and systems
