Integrated Services Digital Network (ISDN);Completion of Calls on No Reply (CCNR) supplementary service;Digital Subscriber Signalling System No. one (DSS1) protocol;Part 1: Protocol specification (Endorsed by Asociación Espanola de Normalización in September of 2021.)
NORMA vydaná dňa 1.9.2021
Designation standards: UNE-EN 301065-1V1.2.2
Publication date standards: 1.9.2021
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE