
Integrated Services Digital Network (ISDN); Freephone (FPH) supplementary service; Service description
NORM herausgegeben am 15.3.1996
    
        Designation standards: ETSI ETS 300208-ed.1
                
                
                
               
                Publication date standards:  15.3.1996
        The number of pages: 18
Approximate weight : 54 g (0.12 lbs)
        Country:          European technical standard
        Kategorie: Technische Normen ETSI