Serial port in AIX

Hi,
How can i configure my modem in AIX thru serial port (sa0-->tty0)

I have two port serial card configured as sa0
I created tty1 which port is tty0 and which port is tty1 how can i know??

See my other post where I suggest running "getty" processes via inittab, and then plugging in a serial console to find out which is which.