METHOD, EQUIPMENT AND NETWORK SYSTEM FOR TERMINAL COMMUNICATING WITH IP MULTIMEDIA SUBSYSTEM(IMS) CORE NETWORK SERVER BY TRAVERSING PRIVATE NETWORK

摘要

A method, equipment and network system for a terminal communicating with an IP Multimedia Subsystem(IMS) core network server by traversing private network are provided by the embodiments of the present invention, wherein, the method for the terminal communicating with the IMS core network server by traversing private network includes: the terminal sets the source address of the service data to be sent as virtual IP address,sets the destination address as the intranet server address,and obtains a first service message, wherein, the virtual IP address is the address allocated to the terminal by the IMS core network; the first service message is encapsulated to a first tunnel message, and the first tunnel message is transmitted to a security tunnel gateway through a Virtual Private Network(VPN) tunnel between the terminal and the security tunnel gateway, so that the first service message in the first tunnel message is transmitted to the intranet server by the security tunnel gateway. By using the technical solution of the embodiments of the present invention, the terminal can communicate with the server in the IMS core network by traversing private network, with no need of altering the enterprise network.