Belgrade : Kosovo leaders have expressed willingness to take part in further talks on the future of the Albanian-dominated Serbian province, but said calling off their demand for independence is "out of question".
"New talks are the last attempt to win support for Kosovo's independence," Kosovo President Fatmir Sejdiu has been quoted by Serbian news agencies as saying.
"This will be the last attempt, and we will not accept any new deadlines."
A UN plan to grant sovereignty to Kosovo, regardless of Serbia's objections, has been removed from UN Security Council agenda under pressure from veto-wielding Russia, Serbia's long-standing ally.
The Contact Group, comprising diplomats from the US, Britain, France, Italy, Germany and Russia, has agreed on 120 days of additional talks between Serbia and Kosovo.
Formally a part of Serbia, Kosovo has been a UN protectorate since 1999, when NATO air strikes ousted Serbian troops over alleged ethnic cleansing of Albanian separatists.