BlueDongle RS232 and RS232 extender

Hi,

I want to use RS232 extender with the Bluetooth Modem - BlueDongle RS232 !!! but the requirment of the RS232 extender is DTE equipment not DCE !!! so how can I use or connect the BlueDongle RS232 with it? any idea? to convert the DCE to DTE or any other way??

Ayman