After months of staffing problems with the city of Belton’s ambulance service, city council members voted Tuesday night to outsource all ambulance services to private companies for the next year.’ Beginning in April, the city entered a test period, operating with just one ambulance, and calling for backup if a second call came in. The move came after months of staffing issues that forced paramedics to work 48-hour shifts in what city spokesman Paul Romer called a staffing crisis. Results from the trial showed more than 60 percent of priority 1 calls were answered by the fire department with a typical response time of six to seven minutes. The rest of the priority 1 calls were left to outside agencies, which had a response time of 13 minutes. “We think response time will go down significantly once they're here in the city.” Romer said.