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China Unicom Limited, an integrated telecommunications operator, offers a range of telecommunications services in China. Its services include GSM and CDMA cellular, international and domestic long distance, and data and Internet services. The company also offers international roaming services, as well as value-added services, including short message services, ring tone services, and wireless data services. As of December 31, 2006, China Unicom served 105.873 million GSM cellular subscribers and ...