This seems to a be a general conversation bot, whereas Duplex is has a very narrow domain. That's also why it was able to do so well in the demo, it's not trying to be a full turing test passing AI, it's just focusing on one specific task.
It is also very debatable if it was a real demo.
They were pre-selected possibly out of tens of thousands of attempts and they won't say if and how the examples were edited. It could also be completely fake like Microsoft's Milo demo and as long as they aren't currently selling it there isn't really any legal repercussion against doing so.
I think this was the AI mentioned in a recent PBS Nova segment on AI. It was remarkable how much it appears people in China have been interacting with this system.
Personally I've mostly interacted with it to leave negative feedback about the bot's uselessness. (If it's the one that pops up awkward conversation starters on Bing.)
Please no. If you're going to call me at least have a real person do it. I hate getting phone calls enough as it is.
The internet brought us email spam and phishing. Now is the exciting time for mass robocalling spam and phishing... Be prepared to hear a call from what seems to be your father asking you to wire him money in Nigeria.
Time to have bots for answering phone calls.
...and arranging the necessary payments to Nigeria for me!