Nippon Telegraph & Telephone Corp has joined the ranks of phone companies that routinely overcharge their customers, sending out incorrect bills, and says it needs to make substantial investments in better billing computers and other customer services, install more fibre optic cable, and build a database to enable it to keep track of just what is installed with which customer, and where all its own equipment is: its refreshing approach to the need for extra cash for investment is to encourage volume by proposing rate cuts on long-distance, cellular and paging services.
