Submission Summary: 0 pending, 6 declined, 1 accepted (7 total, 14.29% accepted)
The Federal Trade Commission is challenging the public to create an innovative solution that will block illegal commercial robocalls on landlines and mobile phones. As part of its ongoing campaign against these illegal, prerecorded telemarketing calls, the agency is launching the FTC Robocall Challenge, and offering a $50,000 cash prize for the best technical solution.
Apparently mandating that telephone companies filter invalid caller id data from their customers and prosecuting the violators of robocall laws is too much effort.
We warn the reader in advance that the proof presented here depends on a clever but highly unmotivated trick. -- Howard Anton, "Elementary Linear Algebra"