This is the main page for ISDN 4 Linux

Hardware support

passive ISDN cards

The well known HiSax driver is now obsolete. To use passive ISDN cards, you can use the new mISDN driver.
You can find information and documentation on its own page

active ISDN cards


Please go to for Isdn4Linux mailinglists and archives.
The old archives can be found here .

Bug Tracker

You can find the Isdn4Linux bug tracker at


Currently you will find the FAQ at


Get links for download from here:

CVS access

The ISDN4Linux CVS repository can be accessed in several ways:

Isdn4Linux (last edited 2007-06-08 08:12:36 by ArminSchindler)