It is rare for apps from App Store to integrate with stock apps on the iPhone, but Google Hangout did it. With the latest update, you can see all the calls you have received from Hangout app on the stock Apple voicemail app. This is a huge step for Google since Hangout is a major competitor of FaceTime.
To enable or disable Hangout’s integration, you have to go to settings inside of Hangout app and change the toggle for ‘Answer on lock screen’ option. As the recipient, the only way you can tell the call is VoIP is by looking at the indicator underneath contacts name.
Why did Google not integrate the apps before? Because this feature was not possible until iOS 10’s CallKit. Now that it is possible, we might see other apps try and do similar things.
What do you think about Hangout? Is this feature useful enough to make a user switch over from ‘Facetime’?