Lost hiker ignored rescuers' phone calls, thinking they were spam

"You can get a cellphone signal on the highest mountain in Colorado, and if you get lost hiking that mountain, you should probably answer your phone — even if you don't recognize the caller's number.

That's the message being spread by Lake County Search and Rescue, which tried to help a lost hiker on Mount Elbert by sending out search teams and repeatedly calling the hiker's phone. All to no avail. The hiker spent the night on the side of the mountain before finally reaching safety."