I've gotten this call four times in a row. I was getting tired of getting various random calls in the past, so I installed the White Pages Caller ID map.
The call is coming from California.
The call is registered as an Internet number (such as Skype)
I received two calls on 31.07.2014 at 6:09 PM and 7:10 PM
I received two calls on 01.08.2014 at 6:10 AM and 7:09 AM.
The phone only rings once--or for a split second. It kind of sounds like one of those "ring and run" scams--where you answer the phone, but since it's outside of the US it wracks up a $20.00 international calling charge fees.
I've called the number back and found out that it's for job listings if you want to cancel it just call them back and press 2 to cancel it so they don't call you back.