Technical rule
[CURRENT]
Article is not orderable
ITU-T Q.709:1993-03
Signalling system no. 7 - Hypothetical signalling reference connection
- German title
- Zeichengabesystem Nr. 7 - Hypothetische Zeichengabebezugsverbindung
- Publication date
-
1993-03
- Original language
-
English
- Pages
- 14
- Publication date
-
1993-03
- Original language
-
English
- Pages
- 14
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