IM Software/Framework/SDK
Toxhomepage: https://tox.imfeatures: message, video, call, file send/recvAnyChat: only sdkhomepage: http://www.anychat.cnfeatures: P2P技术、文字聊天、文件传输、数据通道、音视频录制Open Peer: only sdkhomepage: http://openpeer.org/features: video, message