To meet the trends of telecommunication liberalization and open network interconnections, Chunghwa Telecom Co.,Ltd. (CHT) is steadily increasing its trunking connections with other competitive companies. For the purpose of retrenching the expenditure and improving the network service quality of CHT, the Switching Quality Evaluation System II (SQES-II) has altered the method of collecting the traffic data of Digital Switching Systems. The former dedicated line and dial-up method has been changed to the way of sending observation commands and collecting call information via a platform automatically. Besides, it can access SS7 call information through the SS7NMS system. In addition to rapid reaction and confirming responsibility, SQES-II can provide the habitual behavior of customers, real-time adjust the network, improve network service quality, reduce the cost of maintenance, and increase our global service competition.