The example below shows how to create Virtual COM Port Pair (COM10<>COM11) using Eltima Virtual Serial Port Driver.
1. Download and install Eltima Virtual Serial Port Driver.
2. Click Launch Virtual Serial Port Driver shortcut on your desktop.
3. On the left pane select Pair, and then click <Add a new pair> button.
4. Select the First Port (COM10) and the Second Port (COM11). Click <Create> button.
5. Verify that the ports COM10 and COM11 have been successfully installed on your system.
Virtual ports COM10 and COM11 are connected with each other via virtual Null-modem cable. Now you can use them to operate with Fax Voip T.38 Modem line.