DOCOMO is acutely aware of its responsibility to serve society as a provider of mobile telecommunications. Since the Great East Japan Earthquake of March 2011, DOCOMO has significantly upgraded its networks and services to ensure highly reliable communication on a 24/7 basis, even during emergencies. On a broader scale, DOCOMO's advanced technologies and know-how are helping to meet important societal needs for environmental protection, healthcare, finance, childcare, safety, security and more.