
Human Factors (HF); User instructions for public telecommunications services; Design guidelines
NORM herausgegeben am 15.1.1995
    
        Designation standards: ETSI ETR 167-ed.1
                
                
                
               
                Publication date standards:  15.1.1995
        The number of pages: 16
Approximate weight : 48 g (0.11 lbs)
        Country:          European technical standard
        Kategorie: Technische Normen ETSI