
SK Telecom officially launched "joyn.T" -- an all-IP-based RCS (Rich Communication Suite) service under GSMA's 'joyn' brand. The service allows customers to use many different types of communication services, including Rich Call, Rich Messaging and Rich Phonebook, in an integrated manner regardless of network and device.
The SKTel service is supported via an app available for 22 different types of Android OS 2.3 (Gingerbread) smartphone....