Standard
[CURRENT]
OENORM EN 301084 V 2.1.1:2000-10-01
Integrated Services Digital Network (ISDN) - Outgoing Call Barring-User Controlled (OCB-UC) supplementary service - Service description
- Publication date
-
2000-10-01
- Original language
-
English
- Pages
- 19
- Publication date
-
2000-10-01
- Original language
-
English
- Pages
- 19
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