....about what you want. Are you wanting to use your computer like a hands free device? If so, there may be a way with a downloaded application to allow a Bluetooth connection to your computer and speaker/microphone. I can only assume that is what you are asking.
I'm looking for somekind of intercom system between android device and my pc, over LAN would be nice.
It would require to be able to run in background and voice should go over any other noise my computer would be currently producing.