Foreign Minister Bob Carr is calling on Russia to support a ceasefire in Syria.
Senator Carr was commenting on news on Sunday (AEST) that world leaders had agreed on a plan for transition in Syria.
The deal came despite initial pessimism from participants about the prospects of the Geneva plan amid deep divisions between the West and China and Russia on how to end the violence that claimed at least 83 lives on Saturday.
"I welcome the decision of world leaders in Geneva for more united action on Syria," Senator Carr told AAP.
Senator Carr will attend a United Nations meeting on small arms next week where he will speak to Russia's permanent representative to the UN about Syria.
"I will urge support for a transition plan in Syria," he said.
"It's still clear that Russia's role is crucial."
On Friday, Senator Carr will represent Australia at the Friends of Syria meeting in Paris.
"I'll have a further opportunity to press the case for a ceasefire and a political solution to end the Syrian bloodshed."