Roger Anderson is an aficionado of all things telephone–except calls from telemarketers. After putting his son on the phone with a sales guy who ended up cussing at the kid, he went to work creating a robot capable of reading inflections and holding long conversations with telemarketers, thus wasting their time. He’s even given a TED Talk about it. Since the first release, which featured Roger Anderson’s own voice, he’s expanded to a menu of various genders and personalities (there are samples here). Subscriptions are cheap, considering how jolly it is having some bots on your side. Check it out: http://www.jollyrogertelco.com/