Connection between 2 computers via dial up modem without internet in c#

c# .net modem
Shahin picture Shahin · Sep 7, 2010 · Viewed 8.3k times · Source

Hi Is there any way to connecting to computers via Dial Modem without internet? Like windows Hyper terminal. making connection sending files between computers. Just Connection Between two Computers Directly and sending FIle.

Answer

Richard picture Richard · Sep 7, 2010

Yes.

Assuming the modems are connected via a serial port (or emulate being connected via a serial port): you'll need one modem set up (learn your AT commands!) to listen for and answer incoming calls, and the other to dial the first.

You can then treat the pair as a rather long serial link.

However getting everything to work reliably is more of an art than a science, and something that is so rarely done today that much of it is forgotten. The last time I worked with modems in this way was more than fifteen years ago.

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