GB 3971.2-1983

Interoffice junction digital line signalling system for telephone automatic switching network

NORM herausgegeben am 15.12.1983

The information about the standard:

Designation standards: GB 3971.2-1983
Note: UNGÜLTIG
Publication date standards: 15.12.1983
Country: Chinese technical standard
Kategorie: Technische Normen GB