Ｓ１２４０变换机人机对话模拟系统南海Ｓ１２４０数字程控交换机作为我国主要的通信设备，已遍布全国各省市，装机容量逐年大幅度增长，因此，培养合格的Ｓ１２４０操作维护人员已成为邮电教育部门的重要任务。根据邮电部教指委意见，程控交换机设备课程将增加操作课课时... S1240 conversion machine man-machine dialogue simulation system Nanhai S1240 digital program-controlled switchboard as China’s major communications equipment, has been all over the country provinces and cities, installed capacity increased significantly year by year, therefore, to train qualified S1240 operation and maintenance personnel has become an important task of post and telecommunications education sector . According to the Ministry of Posts and Telecommunications teaching committee advice, program-controlled switch equipment course will increase the operating class hours ...