GB/T 3971.3-1983 The test methods for the technical specifications of multi-frequency register signalling for telephone auto-matic switching network

Standard Number: GB/T 3971.3-1983
Chinese:电话自动交换网多频记发器信号技术指标测试方法
English:The test methods for the technical specifications of multi-frequency register signalling for telephone auto-matic switching network

Effective Date:1984-10-01
Regulatory Authority:Ministry of Industry and Information Technology（通信）
Issuing Regulatory Authority:National Bureau of Standards

Adheres to international standards:N
PDF Downloadable:Y

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