Private Integrated Services Network (PISN) - Specification, functional models and information flows - Recall supplementary service [ISO/IEC 15051 (1997), modified]
NORM herausgegeben am 1.1.1999
Designation standards: ÖNORM EN 301257-V1.1.1
Note: UNGÜLTIG
Publication date standards: 1.1.1999
The number of pages: 24
Approximate weight : 72 g (0.16 lbs)
Country: Austrian technische Norm
Kategorie: Technische Normen ÖNORM