用户: user; subscriber; consumer; ...局: chessboard game; set; inning ...域: land within certain boundari ...信: letter; mail令: order; command; decree系统: system用户环路信令系统: subscriber loop signaling system号信令系统: ccitt signaling system no信令系统: ss signaling system信令系统7: ss7饱和信令系统: saturation signaling system多频信令系统: ssmf signaling system multi-frequency; ssmf signaling system, multi-frequency共路信令系统: ccss common channel signaling system; common channel signaling system no.ccsno国内信令系统: national signaling system七号信令系统: signaling system no. ss; signaling system no.（ss7） ss通道信令系统: css channel signaling system网间信令系统: internetwork signaling system信道信令系统: css channel signaling system音频信令系统: vfss voice frequency signaling system语音信令系统: vss voice signaling system自定义局域信令服务: class custom local area signaling service; class custom local area signaling service公共信道信令系统: ccss common channel signaling system交换和信令系统: switching and signalling systems数字访问信令系统: dass digital access signaling system数字接入信令系统: digital access signaling system
