one reason not to upgrade the slink kernel ...
found on comp.os.linux.announce:
> A new release of isdn4k-utils is available for download at ftp.franken.de.
> The main reason for this release is that it is needed for the new
> kernel 2.0.36. One major change in 2.0.36 is that - on public demand -
> isdn network-interfaces DON'T do autodialing anymore by default. To get
> the old autodialing behaviour, just run
> isdnctrl dialmode <InterfaceName> auto
> The package is still called beta, because some documentation is not
> complete and it is not tested with BOTH 2.1.x AND 2.0.x kernels. As soon
> as it runs stable with BOTH kernels, we will make a final release.
> The URL: