Engadget has reported that Google’s upcoming cellular service, Fi, lacks Voice features, including calls, texting, and voicemail within Talk, Voice, and Obihai. However, these options are available currently in Hangouts, as long as you have them turned on, in addition to call forwarding and voicemail transcripts. It’s possible that these features will come to Fi in time.
That’s not all to the new service. AndroidCentral has made it clear that, counter to previous speculation, Fi does not destroy a user’s Voice account upon activating it. Fi relies on the same infrastructure as Voice. As I mentioned previously, Hangouts can be used to forward calls and access transcripts, and you are able to call and text from within Hangouts, as well.
Fi just gives the option to use a mobile carrier service running on T-Mobile and Sprint’s networks. Plus, the service allows you to pay exactly for what resources you use. Of course, you still can use WiFi, too.
Should you have any more questions or are interested generally in Fi, head over to this Reddit AMA of user idreamincode who received an early invite. He or she explains that user projectfisimon, a commenter in the thread, is a Google representative for the project who can answer questions about the service.