I will give you some frightening numbers. The U.S. follows this closely—there are a number of commercial firms. There were 100 billion calls in the last two years. For February of this year, the latest data says that 4.8 billion calls were placed in the United States. Of those, 43% were fraudulent. Those 4.8 billion robocalls equate to 1,900 per second. It's 43% of those, so it's something in the order of 1,000 a second. That's the kind of volume of problem we're confronting.
On March 10th, 2020. See this statement in context.