Integrated Services Digital Network (ISDN);Basic call control procedures for circuit-switched bearer services;Functional capabilities and information flows [ITU-T Recommendation Q.71 (1993), modified] (Endorsed by Asociación Espanola de Normalización in June of 2022.)
NORMA vydaná dňa 1.6.2022
Designation standards: UNE-ETS 300350ED1
Publication date standards: 1.6.2022
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategória: Technické normy UNE