RCS hasn't conquered the world just yet, but Google is winning the war. Earlier this year, T-Mobile announced that it was switching to Google's RCS messaging and app as the default for devices on its network, and now AT&T has revealed that it is also following suit. There's no firm schedule yet, but future AT&T devices, including Samsung phones, will ship with Google Messages as the default messaging app — and, if AT&T will finally adopt the Universal Profile standards and interconnect to other networks, customers can finally enjoy the perks of improved RCS messaging with out-of-network friends.

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