Google's Project Fi broke into the limelight when it was first introduced. But lately, there's no news about the Project Fi as Google apparently started offering new features.
Google today officially confirmed that several users of the Project Fi are testing the VoLTE features. In their Google's support forums, the company said that VoLTE features are being tested internally for a while now.
How to Check Whether You're Enrolled Under VoLTE Project Fi User?
That's too simple. If you're on a phone call and your network still showing as LTE, then you're a tester of these VoLTE features. However, it is also reported that the VoLTE features are available only for T-Mobile network.
Project Fi is available in Sprint and US Cellular as well. So, the feature will be slowly rolled out to other networks as well.