| Standard ID | Contents [version] | USD | STEP2 | [PDF] delivered in | Standard Title (Description) | See Detail | Status | Related Standard |
| GB 3376-1982 | English | 279 |
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Days<=3
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Inband pulsing single frequency line signaling system for telephone automatic switching network
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GB 3376-1982
| Obsolete |
GB 3376-1982
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