Google has confirmed that it’s now testing VoLTE calls on Project Fi. Only a “subset” of Project Fi customers currently have the feature, though. To tell if you have VoLTE, check your signal indicator when you’re on a phone call; if it shows LTE instead of H, you’re on a VoLTE call.
Project Fi customers with VoLTE will get higher quality calls as well as a faster call setup. These customers will also enjoy faster data speeds if they’re browsing the web while on a call.
VoLTE offers several improvements over normal phone calls. There is a known time frame for when VoLTE will opem to all Project Fi customers.
