Same here on my cell. Rang 2 times and hung up.

Me too.  and can't call back doesn't even ring.

Same here...

Called me 5 minutes ago. I picked up it hung up

got a call a few minutes ago. free trip drawing or something. I generally don' respond to these as if you do, the system now knows that someone is on the other end "responding" so they will continue to call. if they call just keep hanging up on them or ignore it.