To begin, download the Google Duo app for Android or iOS, or visit the Google Duo web app. It also protects calls with end-to-end encryption. It's optimized for low-quality networks and switches between Wi-Fi and mobile data automatically, so you shouldn't experience many interruptions. That's really all there is to it Google didn't add many frills to Duo. Google says this is 'o make calls feel more like an invitation rather than an interruption' and gives you an idea of what someone is up to before you start talking.įinally, Google Duo features a low-light mode to help improve call conditions when it's dark. The only real standout feature of Duo is 'Knock Knock,' which lets you see a live preview of the person calling you before you accept the call.
