8 bit message problem

I was working on KANNEL version 1.1.5 on linux server and now I've switched
to
KANNEL 1.1.CVS version on windows 2000

on the linux when I wanted to send data to an end unit I've send the data
with udh parameter and the text :

&udh=%06%05%04%0B%84%23%F0&text=%ff%00%ff 

and not when with the NT CVS version the same line doesn't work
it seems that it send it in 7bit encoding.
and when I tried to change the coding paramer to 2 or 3 the message didn't
arrive at all 

does someone know the solution ?