A spokesman for Brinks said tonight that there would be consultation with SIPTU at a local level tomorrow to try to resolve their dispute.
The Irish Payment Services Organisation said earlier that 80 bank branch ATMs in the east coast region could run out of cash within 24 hours if the dispute continued.
IPSO, the umbrella body for payment services for financial institutions in Ireland, is advising consumers to use their laser cards and the cards' cash-back option.
About 70 non-branch machines owned by AIB, Bank of Ireland and Ulster Bank on the east coast have already run out of cash because of the dispute.
SIPTU says it wants an early hearing at the Labour Court to resolve the row, while the company said it has no comment to make at this stage.
This morning, SIPTU workers at the company rejected a proposal to end the dispute by a margin of over two votes to one.
Yesterday, it took almost five hours at the Labour Relations Commission to devise proposals to put to the security van crews. The details of the plans, described as 'security sensitive', were not released.
SIPTU says the dispute is over the introduction of new vans and an instruction from company that in the event of a robbery, the van should leave the scene, perhaps stranding crewmembers.
