The United Nations Security Council scheduled a Saturday session to decide on a 300-member mission to monitor the ceasefire in Syria, DPA reported.
The 15-nation council held three hours of closed-door discussions late Friday to iron out differences between separate draft resolutions submitted by the United States and Russia.
The two countries agreed on the objectives of ending the 13-month conflict and providing humanitarian aid to Syrians caught in the fighting.
They urged the Syrian government to fully and "visibly" implement the ceasefire and provisions in the six-point plan worked out by envoy Kofi Annan, a former UN secretary general.
The drafts called for an "immediate end to all violence and human rights violations, securing humanitarian access and facilitating a Syrian-led political transition leading to a democratic, plural political system."
UN Secretary General Ban Ki-moon on Thursday proposed establishing a 300- member mission for an initial three-month period and asked the council to quickly approve it. An advance team of about seven observers is currently in Syria.
Ban said there had been "no progress" in implementing the ceasefire in Syria and that continued violence on the ground was "unacceptable."
The UN said Damascus had failed to carry out the main demands of the April 12 ceasefire, including withdrawing troops from populated centres and stopping use of heavy weapons.