zero byte time slot interchange 零字节时隙交换 ; 零字节时间空档交换

time slot interchange 时隙互换 ; 时隙变换 ; 时间空档交换 ; 时间槽交换

frequency slot interchange 频隙交换 ; 频隙交流

time slot interchange unit 时隙交换单元

Frequency Slot Interchange FSI 频隙交换

ZBTSI zero-byte time-slot interchange 零字节时隙交换

TSI Time Slot Interchange 时隙交换

Time Slot Interchange TSI 时隙交换