China Mobile Limited is an investment holding company. The company provides mobile telecommunications and related services in China and Hong Kong. It offers voice services comprising local calls, domestic and international long distance calls, intra-provincial roaming, inter-provincial roaming, and international roaming, as well as voice value-added services, including caller identity display, caller restrictions, call waiting, call forwarding, call holding, voice mails, conference calls, and others. The company also offers data services, such as SMS, including subscriber-to-subscriber messages, short messages, and others; and MMS. In addition, it provides wireless data traffic services comprising mobile data traffic and WLAN data traffic; and applications and information services, including mobile music, mobile paper, mobile reading, mobile video, mobile market, etc. Further, the company offers telecommunications network planning design and consulting services; roaming clearance services; technology platform development and maintenance services; and mobile data solutions, system integration, and development, as well as operates a network and business coordination center. Additionally, it is involved in network planning and optimizing construction testing and supervising activities; technology support; development and training of mobile communication system; designing and selling electronic communication products; and provision of non-banking financial services, as well as computer hardware and software research and development services. The company was formerly known as China Mobile (Hong Kong) Limited and changed its name to China Mobile Limited in May 2006. The company was incorporated in 1997 and is based in Central, Hong Kong. China Mobile Limited operates as a subsidiary of China Mobile Communications Corporation.