Ambos have 99 pay meetings, but the deal ain't won

Increased industrial action won't impact patient safety, the paramedics' union says. (Joel Carrett/AAP PHOTOS)

Excessive overtime is the key sticking point in a long-running industrial dispute between Victoria's ambulance service and its paramedics, as union members escalate action.

Victorian Ambulance Union members have voted in favour of 70 new work bans including no longer booking taxis for patients and using digital systems for medication checks or to track equipment.