This means, for users who do not even have the app installed on their phones, an incoming call can instantly fly over the screen with a view of the caller's camera.
This feature could be deemed as a masterstroke for Google Duo app resulting in increased app usage. They can also mute their microphone, change cameras, and hang up on the caller.
The new update of the Duo that makes its video calling different from other apps promotes hassle-free connectivity between people, as goes its tagline - "Your closest friend, closer".
And in case a user hits a button to navigate away while the Duo call is connected, similar to how a full-fledged app functionality would allow you, it will show you a persistent notification icon that can bring the call back into view, at any point.
Google's video chats mobile app was announced at the company's developer conference in May 2016 and began its worldwide release in August the same year.
Furthermore, a "Knock Knock" feature lets users see a live preview of the caller before answering. Users who received a call from a Duo user but do not have Duo installed themselves can answer the call by dragging the phone icon up. The option to install Duo pops up after the call has ended, and so does the option to block the caller from calling ever again. This also works with audio-only calls.
What are your thoughts on this new-found feature on Google Duo?
Obviously this won't work when making calls to iPhones, but it makes life a little easier for Google Duo users - you don't necessarily have to fret about whether your contacts have Duo installed before placing a call.