Too bad someone in the hacker community who also gets these non stop annoying calls doesn't turn the tables and do some kind of denial of service attack and shut them down
Weird. A call came and only rang twice. I answer phones for a living, so I called back. Recorded voice said "if you wish to be put on a do not disturb call for this number, press 1" - I hung up and blocked them.
This number calls once in a while and leaves about a 3-minute musical interlude on the voicemail (sounds like a riff on a Sheryl Crow song) which I have to let play all the way through to delete.