In the US we have 911 service ambulances, private ambulance service for like dialysis treatments, and some can call the private service for a transfer to the hospital and it could be a emergency.My first call after being fully certified? Terrorist Attack. A bus exploded and I treated the driver alone. He had a partial amputation of the lower leg. Don't recommend it for a first pt.
On another track, I don't understand what you mean by working but only having 2 911 calls. In the US are all ambulances not controlled by 911? Do you have emergency calls that come from somewhere else?