Presidents Hamid Karzai and Barack Obama have spoken on the phone for the first time since Obama's inauguration. Karzai's office said the US president called Obama on Tuesday - the same day Obama announced that 17,0000 more US troops will be sent to Afghanistan. The two presidents talked about security issues and the Afghan presidential elections in August, according to Karzai's office. Karzai admitted last week that almost four weeks after Obama's inauguration he still had not spoken with the US leader. Karzai spoke with former US president George W. Bush regularly, fueling speculation that Obama was sending a clear signal that Karzai's standing with him was much lower.