Norm
[AKTUELL]
OENORM EN 301084 V 2.1.1
OENORM EN 301084 V 2.1.1
Integrated Services Digital Network (ISDN) - Outgoing Call Barring-User Controlled (OCB-UC) supplementary service - Service description
Titel (englisch)
Integrated Services Digital Network (ISDN) - Outgoing Call Barring-User Controlled (OCB-UC) supplementary service - Service description