South Korea's largest mobile operator, SK Telecom Co has announced plans to run a trial network in its home market of TD-SCDMA, Time Division-Synchronous Code Division Multiple Access, or TD-SCDMA, was developed by the Chinese Academy of Telecommunications Technology in collaboration with Datang Telecom Technology and Germany's Siemens AG, and was included among the family of UMTS standards by the ITU.

April 10 2007, Chinese Premier Wen Jiabao stopped by an SK Telecom test center that is working on a TD-SCDMA network, After greeting SK Group Chairman Chey Tae-won, Premier Wen entered the test center and used a cell phone to make a long-distance video call to Wang Xudong, China's information industry minister, in Beijing. After finishing his phone call, Wen said, "It's surprising how clear the screen is. I feel very happy about working with SK Group."