I have received calls from this number several times.  This is the first time a message was left on the answering machine.  It was an automated recording giving information about an upcoming event at a local park.

They call every day.  Never leave a message.  We are on do not call list.

This number keeps calling my cell phone no one says anything it hangs up and calls right back what is this?

I get calls from this place ALL THE TIME!  The caller ID comes up as "Midwest Tech".  During an unpleasant conversation today, the marketer used the F-word twice after I demanded they quit calling me!

Same as above, got a call about lowering credit card rate.  Tried to tell them I wanted off their list and they hung up on me.  Gotten calls from them twice now with same results of being hung up on.  Tried calling number back but no answer.