HSF Modem hangs my Linux system.

Hi,

I just got a new DELL PowerEdge SC430 with a Conexant Modem installed. I am
using SME Server Version 7.0 linux distribution ( CENTOS 4.2 ) based.

The kernel version is 2.6.9-22.0.1.EL. I downloaded V 7.43 for this kernel
from the Linuxant website.

Some output which might be of use ...

[root@ash-cutel ~]# uname -a
Linux ash-cutel 2.6.9-22.0.1.EL #1 Thu Oct 27 12:26:11 CDT 2005 i686 i686
i386 GNU/Linux

[root@ash-cutel ~]# hsfconfig
Conexant HSF softmodem driver, version 7.43.00.01full

If you need license keys, assistance or more information, please go to:
        http://www.linuxant.com/

When reporting a problem for the first time, please send
us the file generated by "hsfconfig --dumpdiag".

Pre-built driver modules that seem compatible with your system were found
under
/usr/lib/hsfmodem/modules/binaries/linux-2.6.9-22.0.1.EL.
Would you like to use them? [yes]

If I answer [yes] to this - the system hangs completely and has to be
rebooted.

THe following is the output from lspci -vv

05:04.0 Communication controller: Conexant HSF 56k Data/Fax Modem
        Subsystem: Conexant: Unknown device 200f
        Control: I/O+ Mem+ BusMaster+ SpecCycle- MemWINV- VGASnoop- ParErr-
Stepping- SERR+ FastB2B-
        Status: Cap+ 66Mhz- UDF- FastB2B+ ParErr- DEVSEL=medium >TAbort-
<TAbort- <MAbort- >SERR- <PERR-
        Latency: 64
        Interrupt: pin A routed to IRQ 11
        Region 0: Memory at fe6b0000 (32-bit, non-prefetchable) [size=64K]
        Region 1: I/O ports at dc78 [size=8]
        Capabilities: [40] Power Management version 2
                Flags: PMEClk- DSI+ D1- D2- AuxCurrent=0mA
PME(D0-,D1-,D2-,D3hot+,D3cold+)
                Status: D0 PME-Enable- DSel=0 DScale=0 PME-

Anyone have any ideas as to what might be wrong ? Anyone got one of this
modems working with the above configuration?

best regards,
John.