'One ring scam' exploits smartphone 'missed call' screen

http://techcrunch.com/2014/02/25/whitepages-current-for-android-now-protects-against-one-ring-scam/?ncid=rss

... scammers are now trying to exploit smartphone owner’s “missed call” screen by programmatically dialing thousands of numbers per hour, all of which they immediately hang up on after just one ring.

Users who see these missed calls will often call the number back out of curiosity, and then are charged for every minute they’re kept on the line. (According to the BBB, calls are connected to paid international adult entertainment services, or other premium services located outside the U.S.)

I have heard of something similar, people were charged for phone calls to the "Kayman Islands" or to the "Domenican Republic" but this was years ago might be a little different!