(Source: KT Corporation) ▶ Joyn is a brand for Rich Communication Service (RCS), a suit of features such as instant messaging and video-calling ▶ Interoperability between three major carriers will be available. ▶ Joyn to offer unlimited text messaging and real time viedo calling services until May 31, 2013. ▶ Joyin is downloadable for free in Olleh Market. The next generation communication service, Joyn will be interoperated across three major carriers from Dec 26. KT(chairman, Lee, Suk-Chae, www.kt.com) announced on Dec 25 that it will launch the next generation communication service, RCS (Rich Communication Service) that enables...
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