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- 11:47, 19 October 2016 diff hist +769 Exercise 1.1: ISDN Supply Lines
- 11:30, 19 October 2016 diff hist +479 N Exercise 1.1: ISDN Supply Lines Die Seite wurde neu angelegt: „ {{quiz-Header|Buchseite=Beispiele von Nachrichtensystemen/Allgemeine Beschreibung von ISDN }} [[File:|right|]] ===Fragebogen=== <quiz display=simple> {Mu…“