When setting up a new ISDN card, the Teles PnP card, isdn-config
generates the file /etc/sysconfig/isdncard:

 NAME="Teles PnP"
 MODULE="hisax"
 RESOURCES="type=4 protocol=2 irq=11 id=HiSax io=0x580 io1=0x180"

The RESOURCES line should instead look like this:

 RESOURCES="type=4 protocol=2 irq=11 id=HiSax io0=0x580 io1=0x180"
                                                ^
                                                |
                                               Here!