+README.fax
+ - info for using Fax over ISDN.
+README.gigaset
+ - info on the drivers for Siemens Gigaset ISDN adapters
+README.hfc-pci
+ - info on hfc-pci based cards.
+README.hysdn
+ - info on driver for Hypercope active HYSDN cards
+README.icn
+ - info on the ICN-ISDN-card and its driver.
+README.mISDN
+ - info on the Modular ISDN subsystem (mISDN)
+README.pcbit
+ - info on the PCBIT-D ISDN adapter and driver.