This number repeatedly calls me, leaves no message, while I am at work. I am certain I have not asked to be called and this is completely unsolicited. Please take me off your list.
They called, I answered, Absolute silence on the other end. I hung up googled the number, and will be adding it to my list of spam calls that never reach me.
I have two calls from this number which I have just let go to missed calls. I don't answer calls that come from numbers I don't know. If they pester you - you can block them on your cell phone.