how can I send dial-up message through external modem connected serial port?

I connect the external modem to the pc with serial port. so i want to connect server through dial-up method with C#. And then, send and receive message.

How can i solve this problem? please.

Can I use serialport component of .NET?

Solution

Yes.
You'll need to find out from the server specs what type of message to send, but yes, you would use the SerialPort object.

Here's a starting point for you.

http://www.dreamincode.net/forums/showtopic35775.htm

And the Bing search I used to find it.

http://www.bing.com/search?q=C%23+modem+communications+via+serialport&src=IE-SearchBox&FORM=IE8SRC

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