I had a network of Fire Stations, all were using BCM 200 3.7, using H323 trunking. Under Business Name, I had "Station 5". I named the sets like "Captain". Whenever calling from one set across network to set at another station. The display would say, Station 5 Captain. So, I know it works.
There's not that many settings. You need Business name filled in, and MCDN keycodes. I think that's it.