Standard
[CURRENT]
OENORM EN 300368 V 1.2.2:1999-03-01
Integrated Services Digital Network (ISDN) - Explicit Call Transfer (ECT) supplementary service - Functional capabilities and information flows
- Publication date
-
1999-03-01
- Original language
-
English
- Pages
- 35
- Publication date
-
1999-03-01
- Original language
-
English
- Pages
- 35
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