Abstract: The invention relates to a system for live television broadcasting from a mobile telephone. The inventive system comprises: a mobile telephone (1) with UMTS technology, a server (4) with software for receiving a call over the Internet and for transmitting the video signal by means of a card with an SDI output, and the television broadcasting/management infrastructure (5). According to the invention, the audio signal (6) and the video signal (7) are separated. Once both signals are at the server (4), they are sent to a production centre (5) and, from there, transmitted live on television (9) or stored, edited, etc. When the images and the audio signal are transmitted through the mobile phone (1) using video-calling, the system includes a gateway (10) which transforms said audio and video packets into an IP stream such that they can travel over the Internet (3) and reach the server (4).