"Iran should resolve the international community's doubts regarding its nuclear program and convince us in its peaceful nature," Medvedev said during his opening speech at the annual World Economic Forum in Davos.

He said that Russia would like to use every possibility to achieve success in the current difficult dialog on Iran's nuclear program.

Medvedev said he had recently discussed this issue with Iranian President Mahmoud Ahmadinejad on the phone.

"He [Ahmadinejad] said that he agrees with this," he added.

The recent Istanbul talks between Iranian officials and the Iran Six group of international mediators, which comprises Russia, the United States, China, Britain, France and Germany, saw no progress, with Tehran rejecting calls to cease uranium enrichment and allow improved UN monitoring of Iran's nuclear activities.

World powers suspect Iran of pursuing a secret nuclear weapons program, but the Islamic Republic insists it needs nuclear power solely for civilian purposes.

The Iran Six has been trying since 2003 to convince Iran to halt its uranium enrichment program and to alleviate concerns about its nuclear ambitions.