[cnn-photo-caption image= http://i2.cdn.turner.com/cnn/2010/images/06/24/art.medvedevobama.cnn.brittain.jpg caption=" President Barack Obama joked Thursday that the popular microblogging service Twitter could replace 'the red phone,' a longstanding icon of the Cold War."]
Washington (CNN) – President Barack Obama joked Thursday that the popular microblogging service Twitter could replace "the red phone," a longstanding icon of the Cold War that established a direct line of communication between the United States and the Soviet Union.
During a joint press conference with Russian President Dmitry Medvedev, Obama touched on Twitter in the course of mentioning Medvedev's interest in technology and innovation.
"As a personal passion of the president and during his visit to Silicon Valley this week, he was at the headquarter of Twitters, where he opened his own account," Obama said. "I have one as well so we may finally be able to throw away those red phones that have been sitting around for so long."
While visiting San Francisco Wednesday, Medvedev sent out his first tweet.
"Hello everyone! I'm on Twitter, and this is my first tweet," the Russian president said, according to the English language version of Medvedev's official Twitter account.
In his second tweet, he noted he was visiting Apple, Yandex and Cisco and his third tweet was a TwitPic from his hotel window.
Medvedev (@KremlinRussia) is currently following @WhiteHouse (the White House's official Twitter account), @BarackObama (Obama's original campaign Twitter account now run by Organizing for America) and @Number10gov (the official Twitter account for the U.K. Prime Minister). @BarackObama and @WhiteHouse are both following the Kremlin back.
Obama, who has over 4 million followers on Twitter, referred to the popular social network incorrectly as "Twitters."
Last year, during a press conference in China, Obama admitted he actually never used Twitter. But since then, Obama has personally sent at least one tweet – and made presidential history in the process.
CNN's Natalie Novak Contributed to this Report