Roger uses Google Hangouts and hears that it will be going away soon. Leo says it will be going away for business users, but if he's a Google Fi user, he can still do Hangouts. What Google wants is for everyone to use a new service called RCS. The downside is that there's no iOS version, it's very limited, and you can't have phone calls into the conversation. Hangouts could do all of that, so keep using Hangouts while you can.