ISDN

• Uni Mannheim - ISDN Links
• Dan Kegel - ISDN Software and Drivers Links
• Dan Kegel - About ISDN
• Herbert Hanewinkel - ISDN Treiber
• cFos
• Draytek
• Auerswald
• TKR
• TELES
• B.Schmitt (ComTec, Groß-Gerau)  

DSL

• DSL Club