Human Factors (HF); Text Telephony; Basic user requirements and recommendations
NORM herausgegeben am 31.1.1997
Designation standards: ETSI ETR 333-ed.1
Publication date standards: 31.1.1997
The number of pages: 22
Approximate weight : 66 g (0.15 lbs)
Country: European technical standard
Kategorie: Technische Normen ETSI