"We express our welcome of the decision," the Syrian National Council, the main opposition coalition, said in a statement signed by its leader Burhan Ghalioun, a copy of which was received by AFP.
"This decision, late in coming, constitutes the first international political achievement of the struggle and sacrifices of the Syrians," the SNC said.
It said the unanimous vote at the United Nations in New York earlier the same day was "the first important step taken by the international community in meeting its responsibilities towards the Syrian people."
"We are ready to act to make the Annan plan a success," it said, referring to envoy Kofi Annan`s peace plan aimed at ending a crackdown on dissent that activists say has killed over 10,000 people since March 2011.
The SNC, however, warned of "delaying tactics and falsification of the truth by the regime," which had failed to withdraw from towns in line with the Annan plan and had killed more civilians since Thursday`s ceasefire.
It called for the international community to bring in "further measures to ensure the protection of the Syrian people in the face of the regime`s killing machine." (*)