Patent ID: 9749857
Date: 2017-08-29
CPC Classifications: H04L,H04W

Claim:
1. A method for an Internet Protocol Multimedia Subsystem (IMS) terminal to access a network, comprising: acquiring, by a home location IMS terminal management system of the IMS terminal, IMS network access point information of a visit location from a visit location IMS terminal management system of the IMS terminal, wherein IMS terminal management systems synchronize their respective data via an interface; sending, by the home location IMS terminal management system, configuration information to the IMS terminal, wherein the configuration information comprises the acquired IMS network access point information, wherein the IMS terminal management system configures account information, service data and administered IP network segment of all terminals administered by the IMS terminal management system, and configures domain name, administered IP network segment and system feature code of one or more IMS terminal management systems corresponding to the terminals administered by the IMS terminal management system, wherein before receiving, by the IMS terminal management system, a request for synchronizing and/or updating the data from other IMS terminal management systems, and checking, by the IMS terminal management system, whether there is conflict in the IP network segment of the IMS terminal management system, and based on that there is no conflict in an IP network segment, splitting the IP network segment and validating the split IP network segment.