I am amazed at the attitude of some controllers towards this topic. If an ambulance is requested for a particular flight, the way to handle the situation is to ensure that an ambulance has been called by SOMEONE. If this involves ATC phoning the handling agent or company to confirm the action taken, well so be it. If the company is unaware of the problem then it is usually a fairly simple matter for ATC to call an ambulance direct. If time is of the essence then I think that ATC should make the call anyway - there will be no recriminations if the Ambulance Service are already aware of the situation. If a controller is busy, a supervisor or maybe an ATSA can take the necessary action.