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GB/T 3380-1982 Active
GB/T 3380-1982 Ringing and tone for telephone automatic switching network
General Product Information
| Committee | The Telecommunications Transmission Research Institute of the Ministry of Posts and Telecommunications |
|---|---|
| Document Type | National standards |
| Publisher Name | National Standards Bureau |
| Standard Status | Active |
| Standard Code | GB/T 3380-1982 |
| CCS | Communication network number, signal, and connection |
| ICS | Exchange and signaling systems |
| Implement Date | 1983-10-01 |
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