clockwork time release

... calling party release 主叫用户单方话终拆线 clockwork time release 钟机限时解锁器 compression release 【机】压缩漏气 ...

http://www.ptsgi.com/chines... ... "时槽"," Time slot" "时钟式限时解锁器"," Clockwork time release" "晋级"," Advancement" ...