While Amazon announced hands-free calls for its entire Echo lineup a week ago, plus video calls with its new touchscreen Echo Show, recipients need to have an Echo device themselves (or the Alexa app installed on their phone). Google Home's feature ostensibly makes standard calls to any phone and will use a private number by default, but users can link it to their personal one. It will roll out to Home devices in the US over the next few months.

For all the latest news and updates from Google I/O 2017, follow along here.