The FTC has managed to find two non-violent solutions to its Robocall Challenge, aimed at blocking auto-dialing telemarketers, thanks to winners Serdar Danis and Aaron Foss. The pair, who will receive $25,000 each, came up with variations on a system that would pre-screen calls before ringing your phone while allowing the FTC to blacklist known scammers at the same time. Google took a non-cash prize in a separate category with a scheme that would foil caller-ID spoofing often used by boil
