The phone that hangs up to hang up
File this one under "slightly too literal" as this phone really does hang up when you hang it up.
The hook-shaped handle on this futuristic handset is designed to end calls - although letting it stand on a table also turns it off.
So that would also mean you can stand up a call, as well as hang up? Heck, good thing it's only a concept, we're confused already.