High-capacity media broadcasting system and method for mobile phone or fixed telephone switching system

The invention provides a media broadcast system with high capacity for exchanging system of mobile phone or landline and comprises the following components: a media memory server with a data memory and treatment device and network function as well as a media treatment equipment. The media treatment equipment can acquire pre-stored media content from the media memory server in the way of file download and flow media real-time transmission. The invention can memory mass media files and can selectively broadcast file in the way of file download or flow media real-time transmission and therefore, the invention can provide centralized memory of mass media content and provide synchronous media broadcast service for comparatively large amount of users. The invention also provides a mass media broadcast method which can deal with media file with high efficiency and is applied in the exchanging system of mobile phone or landline, moreover, the method can avoid large amount of download flow rate between a media treatme