This is a good idea. I heard a tech expert the other day say to stay silent when picking up the phone for 3 to 5 seconds and it tricks to computer calling that it's a dead number and eventually the calls will stop or at least diminish.
Phone screen showed LOS ALTOS CA and this number. I let it go to answer and heard "You are receiving this call because someone at this number recently requested information about..." Well, no. Nobody at this number (a group that includes only me) requested anything. This is just a back brace scam. Blocked.
Called 3May2017@11:56AM, CID= MED CLINIC. This area code is blocked due to previous spam. There are 2.4 billion robocalls a month. Here are 2 links to robocall related newspaper articles, the 1st about proposals to control it and the 2nd about a spam kingpin who was caught: 1) https://www.washingtonpost.com/news/the-switc ... m=.f04d9d7cf59c
2) https://www.washingtonpost.com/news/the-switc ... m=.ad67786f9c3a