Private Integrated Services Network (PISN);Specification, functional model and information flows;Name identification supplementary services [ISO/IEC 13864 (1995) modified] (Endorsed by Asociación Espanola de Normalización in July of 2021.)
NORMA vydaná dňa 1.7.2021
Designation standards: UNE-EN 300237V1.3.1
Publication date standards: 1.7.2021
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE