Hi Grazino, Peter K. and Ravens Fan
Thanx to all of you.
Now i have dialed a modem through FP-2010(using serial port).
Ravens Fan, sorry but i have got the error about Visa, but today using the same code i got no error(amazing).
Pakman the library u reffered also works thanx for ur interest
Grazino now i am using Lab View 8.5 and Lab View 8.5 Real Time, might be due to older version(8.2) is responsible for error, thanx for ur interest
regards
mazhar