Private Telecommunication Network (PTN);Inter-exchange signalling protocol ;Call completion supplementary services (Endorsed by Asociación Espanola de Normalización in July of 2022.)
NORMA vydaná dňa 1.7.2022
Designation standards: UNE-ETS 300366ED1
Publication date standards: 1.7.2022
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE