Private Integrated Services Network (PISN);Specification, functional model and information flows;Call identification and call linkage additional network features (ANF) [ISO/IEC 21888 (2001) modified] (Endorsed by Asociación Espanola de Normalización in December of 2021.)
NORMA vydaná dňa 1.12.2021
Designation standards: UNE-EN 301922V1.1.1
Publication date standards: 1.12.2021
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE