用户: user; subscriber; consumer; ...信号: signal; semaphore; gun方式: way; fashion; pattern电话自动交换网用户信号方式: subscriber line signalling system for telephone automatic switching network用户线信号方式: subscriber line signaling数字用户线路信号方式: digital line signaling用户信号: subscriber signal用户信号灯: called subscriber held lamp信号方式: signal aspect编译信号方式: compiled signalling长途信号方式: trunk signaling带间信号方式: interband signaling带内信号方式: inband signalling带外信号方式: out band signalling; out of band signaling单频信号方式: uniwave signaling单音信号方式: tone signaling对应信号方式: associated signaling多频信号方式: multifrequency signalling分散信号方式: decentralized signaling干湿信号方式: wet dry signaling互控信号方式: compelled signaling集总信号方式: en bloc signaling交叠信号方式: overlap signaling; overlap signalling局内信号方式: intra-exchange signaling开路信号方式: open circuit signaling
