
Private Telecommunications Network (PTN). Method for the specification of basic and supplementary services
NORM herausgegeben am 1.12.1995
    
        Designation standards: STN ETS 300387
                Classification mark:  870387
                
                Catalog number:  71491
                
                
               
                Publication date standards:  1.12.1995
        The number of pages: 14
Approximate weight : 42 g (0.09 lbs)
        Country:          Slovak technical standard
        Kategorie: Technische Normen STN