I voted for EMS,the EMS provides care for the patient until he arrives at the hospital.Dispatch is just an easier way of communication between rescue services,countries who don't have full dispatch like India have a lot more patients dying.India's citizens in some parts have to call their local ambulance in the hospital using a long number.Countries in Asia with dispatch because we know Europe,North America and Australia already have full emergency dispatch, are pretty much richer than the ones with some or without.In some cases,like India,the government can't provide EMS for the whole country because of too many delegates in Congress so they have to depend on private companies to do it. Countries who have an average amount of delegates or where the president holds much of the power usually have full emergency service throughout the country like Japan,China,South Korea,Thailand,Iran and Vietnam.Most developing countries in Asia and Africa too use the Red Cross or St John Ambulance as their main ambulance provider like Iraq,Malaysia and Pakistan.