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About DOCOMOProcurement ActivityProcurement Policy
CSR Procurement
NTT DOCOMO will promote the procurement activities paying attention to CSR initiatives.
NTT DOCOMO CSR Procurement Guidelines (PDF format:282 KB)
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Green Procurement
Description of our "Green Procurement" that emphasizes the procurement of safe raw materials and other items with less impact on the environment.
Earthquake Resistance Standards and Test Specifications for Communications Equipment
NTT DOCOMO has "Earthquake Resistance Standards for Communications Equipment" and "Earthquake Resistance Test Specifications for Communications Equipment" defined to apply to communicaitons equipments with the view to securing their reliability and cost-effectiveness.
Technical Requirements for Power-supply Interface of Communications Equipment
Technical Requirements for Power-supply Interface of Communications Equipment presents interface conditions and function conditions related to communications equipment with either direct current (DC) or alternating current (AC) as input in order to provide highly reliable communications services. At NTT Group, we are implementing DC power supplies because they are advantageous from the viewpoints of reliability, power-supply efficiency, and economic efficiency.
Page will open in a new window.Technical Requirements for Power-supply Interface of Communications Equipment (website of Nippon Telegraph and Telephone Corporation) (in Japanese only)
