出局端 ---通话过 程--前向拆线(clear-forward) 后向拆线 ( clear-back ) 释放监护(release-guard) 入局端 图4-4 R2 数字线路信令-出局端主动挂机
基于12个网页-相关网页
Release Guard Signal RLG 释放监护信号
release guard signal [电] 释放保护信号
release guard sequence [计] 释放保护序列
release guard 放松警戒 ; 放松监护
release-guard signal 释放保护信号
canopy release guard 伞衣脱离锁保险销
release guard timing 释放监护定时
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