Only on a different channel. When a PTT key is pressed on a PMR, the used channel is occupied.
No, the Topcom PMR does not have a baby monitor function. We do advice not to use a standard PMR as a baby monitor.
Yes, you can use the VOX without headset
The range of the walkie-talkie isn't the same for every location. In a city buildings will interfere with the range of the walkie-talkie. In an open area the range will be much greater.