Method for carrying out voice service in enterprise network and enterprise network system

The invention provides a method for carrying out a voice service in an enterprise network and the enterprise network system. The enterprise network system comprises an integrated base station and an enhancement type router. The integrated base station comprises a base station functional module and a core network functional module. The enhancement type router is respectively connected with a public network device and the integrated base station. The enterprise network occupies spectrum resources, of a set frequency band, of a public network. The method for carrying out the voice service in the enterprise network comprises the steps that the integrated base station receives a voice service request sent by a calling terminal in the enterprise network; the integrated base station sets up an evolution grouping system load for the voice service corresponding to the voice service request according to the priority of the calling terminal and a called terminal of the voice service request, wherein the evolution grouping system load meets the service quality demand parameter which corresponds to the priority. By means of the method for carrying out the voice service in the enterprise network and the enterprise network system, the voice service quality of high-priority users in the enterprise network can be ensured.