OK!!
I have installed pctel 789 modem with FC2 by slmodem 2.9.9 OK!
download slmodem 2.9.9
use x-konsole
make
make install
modprobe slamr
modprobe slusb
slmodemd /dev/ttyS0
--------it will hole the konsole--------
use new konsole
ln -s /dev/ttySL64 /dev/modem
---------now the modem can use------
Anybody can make it run in backgroup ?
THANKS