The three telephone companies currently licenced to compete with Nippon Telegraph & Telephone Corp have filed with the Ministry of Posts & Telecommunications for approval of their tariffs. The three – Japan Telecom, Japan High-speed Communications, and Dainidenden – have come out with charges that are all about the same, and undercut those of NTT by about 25% on the busy Tokyo-Osaka route, and by about 20% overall. They want to start services on September 4. Japan Telecom expects to have 400,000 to 500,000 subscriber lines, for a total revenue of $13m to $34m. Japan High-Speed Communications will have approximately 300,000 lines, for revenue of $17.2m; Dainidenden is aiming to have 300,000 lines installed for about $20m in first year revenue.