This app is a client of our video meeting system, it runs on Mac(OS X version should be at least 10.11). Certainly, it can touch with other people in realtime, including watching each other's video, talking with each other and watching other's shared documents. It runs fine on Wifi & cable network. Some technical parameters: 1, supports H263, H264 video encoding and decoding; 2, audio format is ILBC; 3, average using bandwidth: 20-30KB/S.