KT's 'show moov' client application is available for mobile and PC platforms, so users can access RCS services from mobile and fixed terminals, which is a key feature of the RCS specifications developed by the GSMA. Also, SK Telecom and KT are actively collaborating with fixed line services. For instance, KT 'show moov' is integrated with one of Korea's major portal's e-mail, search services and SK Telecom' s mobile messenger is linked with one of Korea's most popular messenger 'Nate On Messenger'.