The SIPTU members from the National Ambulance Service have served notice of industrial action to take place on June 6.
Their reason for taking the action is due to failures of management to implement agreements that were reached at the Workplace Relations Commission (WRC).
The agreements included the level of staff, the filling of permanent vacancies, payment of correct pay rates and retention of staff.
SIPTU Organiser John McCamley said:
“On 6 June, SIPTU members will begin a work-to-rule action which will affect non-emergency duties within the control centre.
“Staff have gone through a long and difficult engagement process at the WRC to try to resolve this dispute but unfortunately our members have found that commitments given by management have not been honoured on multiple occasions.
“SIPTU members are calling on management to fully implement all the WRC agreements in order to prevent a further escalation in this dispute.”