OBS_VALUE: Under Article 21, Paragraph 1 of the Telecommunications Business Act (Act No. 86 of 1984), the Minister for Internal Affairs and Communications (MIC) set the standard charge indices for specified telecommunications services (subscriber phone, ISDN and public telephone services) provided by Nippon Telegraph and Telephone East Corporation (NTT Eas) and Nippon Telegraph and Telephone West Corporation (NTT West). 