GB/T 5442-1985

The test methods for the technical specifications of inband pulsing single frequency line signalling system for automatic telephone switching network

NORMA vydána dne 30.10.1985

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The information about the standard:

Designation standards: GB/T 5442-1985
Note: NEPLATNÁ
Publication date standards: 30.10.1985
Country: Chinese technical standard
Kategorie: Technické normy GB