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Edit v1.013 from 2004-08-16 to 2009-06-25 by Team

Glossar, Buchstabe X

X.75 und...

X7...

Edit v1.010 from 2005-01-04 to 2009-06-22 by HSc
X.75:
Digitale 64.000 Bit/s mit Fehlersicherung.