GB/T 3971.3-1983

Active

The test methods for the technical specifications of multi-frequency register signalling for telephone auto-matic switching network

电话自动交换网多频记发器信号技术指标测试方法

Standard Type
GBT
ICS
N/A
CCS
M12
Status
现行
Issue Date
1983-12-15
Implementation
1984-10-01
Responsible Dept
工业和信息化部（通信）
Drafting Unit
N/A