ASTANA, June 30. /TASS/. The Presidents of Kazakhstan and Russia, Kassym-Jomart Tokayev and Vladimir Putin, have discussed topical issues on the international and regional agenda over the telephone and agreed to maintain working contacts, according to Tokayev's press service.

"The heads of state also discussed topical issues on the international and regional agenda. At the end of the conversation, the presidents agreed to maintain constant working contacts," it said in a statement.