
ISDN user-network interface layer 3 specification and testing method for basic call control procedure--Part 2:Testing method for layer 3 basic call control protocol
NORMA vydaná dňa 16.12.1997
Designation standards: GB/T 17154.2-1997
Publication date standards: 16.12.1997
Country: Chinese technical standard
Kategória: Technické normy GB