How to use and Oracle procedure that return value to Natural

How can I use CALLDBPROC, RESULT SETS, READ RESULT SET etc. to retrive results returned by Oracle Procedure.

My Oracle proceudre have two parameters, my_proc(cust_no IN number, cust_name OUT varchar2).

Can I pass cust_no and get cust_name using CALLDBPROC from Natural 6.3?

Thanks,

Kevin,
RESULT SETS are not supported with Oracle.
Regards, Thomas