Russian President Vladimir Putin and his US counterpart George W. Bush discussed an upcoming NATO-Russia summit in a telephone conversation Friday, the Kremlin said.
"The heads of state examined questions on the international agenda, particularly in light of preparations for the Russia-NATO Council meeting," a Kremlin statement said.
Putin is planning to attend the meeting in Bucharest on April 2-4, which will take place on the sidelines of a full NATO members summit.
Tensions are high between Moscow and its Western partners over NATO's expansion drive, US plans to install anti-missile defences in central Europe and Russia's suspension of a key Cold War-era arms pact.