SMS has been with us for over a quarter of a century and it won't go away anytime soon. But it's really showing its age and many have moved to instant messaging - WhatsApp, Viber, WeChat, Line, KakaoTalk - for the convenient features these apps offer over plain SMS. Recently Google has started (with the help of carriers) to push RCS - Rich Communication Services. If we had to describe it in three words they would be "iMessage for Android". RCS vs. IM Why not just keep using WhatsApp or one of the others? That's why - SMS is a core feature of mobile networks and every phone...
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