hi,
I am using fedora core 3
My modem is D-LINK DFM-5601S++ Motrola internal modem
In ny system wvdial is installed
I have also installed the drivers for this modem
That rpms is sm56-85.1.10.i386.rpm and
SM56_5_1_I386.rpm
i tried so many times but it is telling not detected
Now i run the command wvdailconf newconffile
After this command i type this message is came.

Scanning your serial ports for a modem.

ttyS0<*1>: ATQ0 V1 E1 -- failed with 2400 baud, next
try: 9600 baud
ttyS0<*1>: ATQ0 V1 E1 -- failed with 9600 baud, next
try: 115200 baud
ttyS0<*1>: ATQ0 V1 E1 -- and failed too at 115200,
giving up.
Port Scan<*1>: S1 S2 S3 S4 S5 S6 S7


Sorry, no modem was detected! Is it in use by another
program?
Did you configure it properly with setserial?

Please read the FAQ at http://open.nit.ca/wvdial/

If you still have problems, send mail to
wvdial-list@lists.nit.ca.
please reply me if you know the problem

Use this command.........it will ensure you in which port your modem is connected (you may treat it as your modem is being detected or not).

Regards

I was under the impression that internal PCI modems did not use the setserial ttsy0 connection and instead relied on a link to /dev/modem provided by the modem drivers.
good luck