
Private Telecommunications Network (PTN). Signalling at the S-reference point. Identification supplementary services
NORM herausgegeben am 1.11.1994
    
        Designation standards: ČSN ETS 300191
                Classification mark:  879508
                
                Catalog number:  16869
                
                
               
                Publication date standards:  1.11.1994
        The number of pages: 2
Approximate weight : 6 g (0.01 lbs)
        Country:          Czech technical standard
        Kategorie: Technische Normen ČSN