NTT DOCOMO, INC. provides mobile communications services in Japan. The company operates through three segments: Telecommunications Business, Smart Life Business, and Other Businesses. It offers voice, data, and other value-added services; international calling roaming, and public wireless LAN services; Office Link, a service that allows mobile phones to be used as internal lines; Business Mopera Anshin Manager, which enables the unified control of corporate mobile phones; and satellite cell phone services. The company also provides optical-fiber broadband and Internet access services; video and music distribution, electronic books, and other services through its dmarket portal; finance/payment, shopping, and other services; medical database relating to healthcare-related companies, including pharmaceutical companies; and authentication and information services to medical personnel. In addition, it offers mobile device protection services; online courses; in-vehicle information/communication platform and data connectivity services; M2M services; eSIMs; Docomo DriveNet Navi, a car navigation services; Docomo DriveNet Info, a service for supporting car life; and docomo M2M Platform, which enables centralized management of docomo lines and overseas telecommunications carriers’ lines. Further, the company sells music software; operates cooking school, and content and content management platform; develops, sells, and maintains IT systems; offers mobile content delivery platform, billing/payment, cable television, and fixed telephone services; and is involved in the mail order sales of ingredients and cooking utensils. Additionally, it sells handsets and related equipment. The company sells its products through distributors and its stores, as well as through online. As of March 31, 2015, it had 2,399 docomo shops. The company was founded in 1991 and is headquartered in Tokyo, Japan. NTT DOCOMO, Inc. operates as a subsidiary of Nippon Telegraph and Telephone Corporation.