Android: If you thought Google Voice integration would be the biggest Hangouts-related news today, you were wrong.
Today Google released the Hangouts Dialer.
With or without Google Voice.
To reach the dialer, you’ll need to install a separate app.
Once everything is finally working, however, the entire thing appears to function as one single app.
Hangouts| Google Play Store viaAndroid Police
Hangouts Dialer| Google Play Store
