Google has been the driving force behind the adoption of RCS over the past two years, so it has always been muddled that the company's own MVNO network does not support this technology. This eventually changed because Google Fi (formerly Project Fi) is now introducing RCS along with improved international coverage.

To take advantage of RCS, you must set up Android Messaging as your default SMS application on your phone. If you're still using optional Hangouts integration, you'll need to turn it off. Once everything is set up, you get the indicators, read revenue, support high-definition videos and Wi-Fi messaging capability.

Of course, it all works only with others who have an Android phone on a carrier that also supports the RCS Universal Profile. In the United States, it is mostly limited to phones in Google Fi and Sprint. T-Mobile supports RCS on several phones, but its hub is not yet connected to Google.

In addition to the new RCS feature, International Fi coverage is better than ever. "Faster coverage of 4G LTE" takes place in 33 countries, including France, Germany, the United Kingdom, Spain, Greece and Italy. It is not clear whether LTE was previously available in these countries or that the data rate would be higher than before.

It's great that we finally see that Google Fi adds support for RCS, even if major US carriers are still in the early stages of the same. Combined with support for all GSM devices and enhanced international coverage, Fi is a better solution than ever before.