As the transmission backbone of Automatic Ticket Selling System of Taiwan Railway Administration. United Fiber Optic Communication Inc. has been engaged in fiber Optic transmission systems from Changhua to Tainan , Hualien to Taitung with the length around three hundred kilometers long, since 1993. So far it is completed and under serviced around two hundred kilometers. The project includes the cabling and termination of fiber optic cable, copper cable and installation, testing and commissioning of 150Mb/s OLTE and PCM Channel Bank.