Called three times in one hour. Robocaller did not disconnect from my line and got message about hang up and try again and then horrible siren-like noise for several seconds.
This number called our help desk for logistics, should have hung up when I heard an electronic 'bleep' and then a robo-voice-Hi this is Frank from --GRRR we cannot block these idiots.
This number called the office today looking to sell residential security systems. I told the caller we were NOT a residence and to put us on his do not call list. When asked to repeat myself, I said the same same thing again and the call disconnected.