lawsuit filed against you call

Got a call from this scammer saying there was a lawsuit against me in a female digitized voice either a person or computer robot.  When I did not call the number, got a call four hours later reminding me angrily in the same female digitized voice what the number was  in case I had forgotten it.   Some really low life people in this world seeking personal identity information and probably a shake down of money.  Could it be an unethical lawyer?