Hmm ... It's impossible ;-) This RPM doesn't exist on any FTP server

Provides :
capiplugin.so
config(isdn4k-utils)
libcapi20.so.3
userpass.so
isdn4k-utils
isdn4k-utils(x86-32)

Requires :

bzip2
initscripts => 5.92
libncurses.so.5
libutil.so.1
libc.so.6(GLIBC_2.2.3)
rtld(GNU_HASH)
libc.so.6(GLIBC_2.12)
libtinfo.so.5
coreutils
libm.so.6
/sbin/service
libc.so.6(GLIBC_2.4)
libpcap.so.1
libc.so.6(GLIBC_2.1.3)
rpmlib(PayloadIsXz) <= 5.2-1
config(isdn4k-utils) = 3.2-75.el6
libcapi20.so.3
libc.so.6(GLIBC_2.7)
libpanel.so.5
libc.so.6(GLIBC_2.2)
libc.so.6(GLIBC_2.0)
/bin/sh
rpmlib(PayloadFilesHavePrefix) <= 4.0-1
libc.so.6(GLIBC_2.3)
libm.so.6(GLIBC_2.0)
udev => 039-10.14.EL4
libcrypt.so.1
rpmlib(CompressedFileNames) <= 3.0.4-1
rpmlib(FileDigests) <= 4.6.0-1
libc.so.6(GLIBC_2.1)
chkconfig
libcrypt.so.1(GLIBC_2.0)
/bin/bash
libc.so.6
hwdata => 0.146.18.EL-1
libc.so.6(GLIBC_2.3.4)

Content of RPM :
/etc/capi.conf
/etc/isdn
/etc/isdn/callerid.conf
/etc/isdn/ibod.cf
/etc/isdn/isdn.conf
/etc/isdn/isdnlog.isdnctrl0.options
/etc/isdn/isdnlog.users
/etc/isdn/rate.conf
/etc/ppp/ioptions
/etc/ppp/peers/isdn
/etc/ppp/peers/isdn/arcor
/etc/ppp/peers/isdn/avm
/etc/ppp/peers/isdn/avm-ml
/etc/ppp/peers/isdn/leased
/etc/ppp/peers/isdn/otelo
/etc/ppp/peers/isdn/talkline
/etc/rc.d/init.d/capi
/etc/rc.d/init.d/isdn
/etc/vbox
/etc/vbox/vboxd.conf
/etc/vbox/vboxgetty.conf
/sbin/avmcapictrl
/sbin/capiinit
/sbin/hisaxctrl
/sbin/ibod
/sbin/icnctrl
/sbin/iprofd
/sbin/isdnctrl
/sbin/loopctrl
/sbin/pcbitctl
There is 209 files more in these RPM.