The users of the original virtual network realize multi-route and multi-office selection without changing their usage methods and habits. When the dialed number is the mobile operator number, the system automatically selects mobile network outbound; when the dialed number is a fixed line operator When the number or virtual in-network phone is selected, the system automatically selects the fixed line out. When the dialed number is long distance, the system automatically returns to the most economical operator network to outsource, expands the market for mobile operators, and provides an application mode for the promotion of VPMN services and bundled users. It also lays the foundation for the development of other data services. The users of the original virtual network realize multi-route and multi-office selection without changing their usage methods and habits. When the dialed number is the mobile operator number, the system automatically selects mobile network outbound; when the dialed number is a fixed line operator When the number or virtual in-network phone is selected, the system automatically selects the fixed line out. When the dialed number is long distance, the system automatically returns to the most economical operator network to outsource, expands the market for mobile operators, and provides an application mode for the promotion of VPMN services and bundled users. It also lays the foundation for the development of other data services.