A lot thoughts for a lot of cockpit builders is going into the Intercom System. There are some very good and very real easy to use replicas available. Seems the best out there is the one from Ruscool.
Most of the time I am flying alone in my flightdeck, therefore I don’t need those more expensive solutions. I tested and figured the following solution for me. It’s working, its simple and its cheap – although its not 100 percent real.
First I have to explain my setup a little. I have one PC running vpilot and handles the communication to the VATSIM ATC. On this machine there are 2 headsets connected. Each one has a separate USB Soundcard, where the 2 3.5mm connections are connected. In the windows system config the configuration is made that the loopback device from the captains mic is the first officer headset and vice versa. So everytime the captain speaks the first officer will hear him. Not perfect, but it’s working. If you want stop transmitting to the intercom, you can disable the mic input via a switch on the Plantronics GameCom 388 Headset. Sounds simple? It is 🙂 As I sayed not perfect, but its working and sounds quite real.