Facebook Messenger is launching free VOIP video calling over cellular and wifi connections on iOS and Android. The new video-calling feature is launching today on iOS and Android for those in the U.S., U.K., Canada, Mexico, Belgium, Croatia, Denmark, France, Greece, Ireland, Laos, Lithuania, Nigeria, Norway, Oman, Poland, Portugal, and Uruguay. Facebook promised to roll it out to other regions over the coming months.

With video calling in Messenger, you’ll be able to make calls from Android devices to iOS or vice versa. All you need to do is tap the little camcorder symbol located on the top right side of the screen, next to the phone symbol within a chat.

With the launch of Video calling Facebook gives throat cutting competiton to services like FaceTime from Apple, Google Hangouts and Skype.