"Kuaiyitong" is a professional multimedia network communication software. Using advanced P2P technology, a lot of optimization has been done in the transmission of voice and video, which makes the voice clearer and the video smoother. At the same time, the software has added some fashionable and practical functions, such as cool bell, automatic answering machine, audio and video recording and other novel functions. "Autotoll" can not only realize point-to-point voice and video communication at a cost of "0", but also call traditional phones or mobile phones. Low call charges are incomparable to traditional telephones.