It was announced in January 2009 on the Consumer Electronics Show and was integrated in Skype for the first time in version 4.0 beta 3 from January 7, 2009, with the final version being released on February 3.
它于2009年1月在 Consumer Electronics Show 被宣布，并在2009年1月7日在4.0 beta 3版本中被首次整合到Skype，最终版本在2月3日发布。