The Brigade insists plans to share some emergency calls with colleagues in Cornwall will not lead to the closure of the control room in North Yorkshire.
But Fire Brigade Union officials are concerned the plans may result in job losses and they fear a lack of local knowledge may affect response times.
Area Manager Owen Hayward from North Yorkshire Fire and Rescue Service has been speaking about the plans.
More top news
The group say A&E departments in County Durham, Teesside and North Yorkshire are under threat.
Examples include the switching of ‘bairn’ for ‘baby’, along with ‘kets’ for sweets and ‘netty’ for toilet
North East Ambulance Service (NEAS) has unveiled its shortlist of awards for those it says have gone 'over and beyond the call of duty'