This is not the first time Apple has sent a chill down the spines of mobile carrier executives. Years ago, the launch of the iMessage platform on iPhone was a quite obvious and direct attempt to undermine carriers’ highly lucrative text-messaging business. Over the past couple of years, though, it hasn’t been iMessage that has undermined SMS revenues around the world — it has been the cluster of cross-platform messaging apps like WhatsApp, LINE, Kakao, WeChat, etc.
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