Google’s video chat app, Duo is now getting audio calling. The new feature is rolling out to users worldwide.
Google Duo first launched in August 2016 and at the time, audio only calls were teased at the time. The new feature can be found on version 9.1.1516 of Google Duo in the Play Store or on APK Mirror, you should also see it on the iOS App Store as well.
Via: Android Police