Integrated Services Digital Network (ISDN); Completion of Calls on No Reply (CCNR) supplementary service; Service description (Endorsed by AENOR in November of 2007.)
NORM herausgegeben am 1.11.2007
Designation standards: UNE-EN 301134V1.1.1
Publication date standards: 1.11.2007
Approximate weight : 300 g (0.66 lbs)
Country: Spanish technical standard
Kategorie: Technische Normen UNE