奇怪的振铃障碍的查修江苏省徐州邮电局孙怡冬我局前段时间约８０个用户电话机振铃时出现铃声短促现象，仅为１１０ｓ左右，（正常情况一声铃响应为１ｓ），而主叫方听到的回铃音正常，若此时被叫拿起话筒，仍可正常通话。测量台人员受理申告后初步判断是话机故障，但是经... Strange ringing disorder investigation Xuzhou Post Office Sun Yudong winter bureau of our bureau some time ago about 80 user ringing a ring when the phone ringing phenomenon, only about 110s, (normal situation a bell response for 1s), and the calling party Ring back tone heard normal, if at this time was called to pick up the microphone, you can still call normally. Measuring station staff to accept the preliminary judgment after the announcement is the phone fault, but after ...