Microsoft's launched a test version of the Skype Translator which decodes conversations in Spanish and English in real time.
It means that during video calls people who speak those languages will be able to talk freely.
Gurdeep Pall from Microsoft says it follows more than 10 years of investment.
"Skype Translator will open up endless possibilities for people around the world to connect, communicate and collaborate," he said.
"People will no longer be hindered by geography and language."
Demonstration of Skype translate at a conference by Microsoft