Hacker News Reader

I got 34 calls before noon a few weeks ago - all of them unknown numbers. I clicked the 'screen call' option or ignored it. One single person left his name and message - an old friend. Everyone else I marked as spam, so the next person may get a warning, and blocked. It works great.

I use it off and on and it works pretty well. Typically the caller (robot) hangs up almost right away before you get the satisfaction of screwing with them though and when that happens you don't get the easy option to block them as spam either because the screener quits right away.

I've been using it for a year or so and it's brilliant. I love that I can screen calls in a meeting without anyone knowing.

Disclosure: I work for Google.