isdnconfig - configure the Debian isdnutils package
is used to interactively enable any required ISDN daemons and
other programs; skeleton configuration files are installed. Those
configuration files need to be edited by hand before anything useful will
happen. Upon starting the isdnutils programs, the init.d script will tell you
if any files are not yet configured manually.
was written by Andreas Jellinghaus specifically for Debian
GNU/Linux and isdn4linux, and is now maintained by Paul Slootman