Called several times last month I did not answer un-recognized number and sometimes I was not home. I reported number to donotcall.gov. They called once this month and 6 times last month mostly in the afternoon. I did not set up a voice mail. I block the number with my phone. It will ring once when the number is blocked and then hang up on the caller. I think the robo calls that are recorded don't know they are blocked when the phone rings once and hangs up on them.