What is rcs?
It was the next, more feature-rich SMS/MMS. It floundered with carriers, Google flip-flopped several times on messaging and today, it has two forms. Google’s RCS, but I’d liken it more to Google iMessage. And RCS the standard, which Google’s implementation is based on and Apple will be adopting. I am hoping that this is a kick in the butt that everyone needs to actually get on the same page for an SMS successor.
Rich Communication Service.
It’s SMS or MMS but better.
You don’t need a messenger app and share your contacts with Facebook and Co.
You do need a messenger app. Google wants you believe you don’t but you do.
It’s baked into Google messages and Samsung messages (Samsung messages is just rebranded Google messages). It pre installed and defaulted if the person you tried to text can receive it.
Google RCS goes through the internet, not carrier networks. Most likely Google jibe service. Which you carrier may have Google implement for them, if not it will default to Google’s own jibe service.