[thrownaway2424]

On your way to absurdism you skipped over a bunch of legitimate prior art in the consumer space, such as the OnStar roadside assistance system (press a button in your car, OnStar service rep starts talking through your radio), or even dialing zero on your phone.

[eridius]

Both of those things you cited are services you pay for. I was not familiar with Amazon's Mayday button (not being a Kindle Fire HDX owner I guess), but it appears to be a wholly free service you get merely by owning the device. OnStar and the phone system are both subscription services.