Multimedia polyphonic ringtone service processing method, system, equipment and medium

The invention discloses a multimedia polyphonic ringtone service processing method, system and device and a medium. The method comprises the steps that a call request is sent to a province end polyphonic ringtone service module through a core network module; sending the call request to a centralized end polyphonic ringtone service module through a provincial end polyphonic ringtone service module; the call request is analyzed through the centralized end polyphonic ringtone service module to obtain user information, and the user information is sent to the Internet support module and the provincial end polyphonic ringtone service module; connection with the core network module is established through the Internet support module, polyphonic ringtone information is acquired according to user information, and the polyphonic ringtone information is returned to the province-end polyphonic ringtone service module through the centralized-end polyphonic ringtone service module; playing corresponding multimedia polyphoni