How do you know when someone is calling you? Google Duo Questions › Category: General › How do you know when someone is calling you? 0 Vote Up Vote Down Joan Mather asked 4 years ago My friend says she hears a ringing noise when I’m calling her. I get no ring or anything besides seeing her face on the screen. 1 Answers 0 Vote Up Vote Down admin Staff answered 4 years ago Hey there, i would try removing the Duo app and reinstalling it.