What is full duplex voice communication?
A full-duplex device is just like a regular phone. You can talk and listen at the same time. A half-duplex device just like a portable radio walkie-talkie; as long as you hold down the “Talk” button, you can’t hear anybody else who is trying to talk to you–that’s why radio users say “Over” at the end of a transmission–so the other person knows you’ve finished and they can begin speaking. Users can communicate in both directions but only one person can speak at a time. A Simplex device is even less sophisticated than half-duplex; it is like a radio broadcast station. You can’t respond to its transmissions at all.
