debian 7.0: mISDN - no series for kernel version 3.11 ????

Hi people!
I have a openvox 4 Port HFC Isdn Card with a DSP processor:

03:00.0 ISDN controller: Cologne Chip Designs GmbH ISDN network
Controller [HFC-4S] (rev 01)

I have tried on my Debian Wheezy server to compile the "mISDN modules"
according the debian howto guide:

https://www.misdn.eu/wiki/Howto_for_Debian/

and preparing the module gets me this error:

make[2]: Leaving directory `/tmp/mISDN/standalone'
rm -f patched
if test -f ../series/series_3.11; then \
        cp ../series/series_3.11 series; \
    else \
        echo "no series for kernel version 3.11"; \
    fi
no series for kernel version 3.11
if test -f series -a ! -f patched; then \
        ../scripts/apply_patch_series series; \
        touch patched; \
    else \
        echo "no series found"; \
    fi
no series found
cat .patchOK
cat: .patchOK: No such file or directory
make[1]: *** [patched_tree] Error 1
make[1]: Leaving directory `/tmp/mISDN/standalone'
make: *** [modules] Error 2

my standalone/mISDN.cfg looks like this:

# that should be always enabled
CONFIG_MISDN
#
# hardware support features
#CONFIG_MISDN_HFCPCI
CONFIG_MISDN_HFCMULTI
#CONFIG_MISDN_HFCMULTI_8xx
#CONFIG_MISDN_HFCUSB
#CONFIG_MISDN_XHFC
#CONFIG_MISDN_L1LOOP
#CONFIG_MISDN_AVMFRITZ
#CONFIG_MISDN_SPEEDFAX
#CONFIG_MISDN_INFINEON
#CONFIG_MISDN_W6692
#CONFIG_MISDN_NETJET
#CONFIG_MISDN_IPAC
#CONFIG_MISDN_ISAR

# core features
CONFIG_MISDN_DSP
#CONFIG_MISDN_L1OIP



what could be the problem ?!


For any advise I would kindly thank you.



Tamer