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GB/T 3971.3-1983 Active
GB/T 3971.3-1983 The test methods for the technical specifications of multi-frequency register signalling for telephone automatic switching network
General Product Information
| Document Type | National standards |
|---|---|
| Publisher Name | National Standards Bureau |
| Standard Status | Active |
| Standard Code | GB/T 3971.3-1983 |
| CCS | Communication network number, signal, and connection |
| ICS | Telecommunications system |
| Implement Date | 1984-10-01 |
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