信号: signal; semaphore; gun方式: way; fashion; pattern单音, 单音信号: single tone单音信号: tone signal双音双频音信号方式: touch tone signaling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零频信号方式: zero frequency signaling路内信号方式: within channel signaling模拟信号方式: analog signaling时分信号方式: time division signaling
