A video stream of image or a first video stream generated by a first application is captured by a second application. The first and the second application run on the same device. The first video stream or a video stream generated from the image of the first application is sent from a first communication device by the second application to a second communication device. A second video stream that is generated by the second application is sent to the second communication device too. The first video stream and the second video stream are transmitted to the second communication device and there displayed.