The invention discloses a voice trunk circuit access method, a voice trunk circuit access device, a mobile terminal and a storage medium, used for achieving unified management in voice communication.The method comprises the steps of achieving regular expression configuration of each route and synchronizing the same into a configuration file of a background server, an analyzing a call request, performing regular matching, learning a conveying circuit and performing a header field modification; setting a data interface, periodically updating and caching black and white list data, performing data matching on a call number, and executing a conveying or call prohibiting command after recognition; setting a number affiliation corresponding table, achieving the query of number affiliation, presetting a routing rule, and achieving a local call; recording the call, and performing unified record management; and achieving a middle agent, setting the routing rule, and achieving call reconnectionwhen a receiving terminal is unresponsive due to a gateway fault. According to the method, device, mobile terminal and storage medium provided by the invention, the unified management, deployment, charging and recording of the trunk circuit are achieved, so that the access to the call platform becomes simpler and quicker, and the configuration is reduced.