just download the newest unitrunker.and get good signal.but seems like when going from dispatch to car or handheld id's never change.they can talk and it will stay on the dispatch id.when i hear a car or handheld the dispatch id comes back up.never showing the right id??? listening to the gastonia nc system on site 2 of 0f18 charlotte nc system.is this a system issue or am I doing something wrong?? setting???