Method, apparatus and system for registering a terminal with an application server in an IMS

摘要

Method for registering a terminal with an application server being a member of a pool of available application servers in an IP Multimedia Subsystem, IMS, interconnected through a network, for providing services to the terminal, the method comprising: receiving a registration request from the terminal, selecting in accordance with a predefined set of rules comprising at least two rules, an application server for servicing a requested service to the terminal; and registering the terminal with the selected application server.

主权项

1. A method for registering a terminal with an application server being a member of a pool of available application servers in an IP Multimedia Subsystem (IMS), interconnected through a network, for providing services to the terminal, the method comprising:
receiving, by a call session controller, a registration request from the terminal; selecting, by the call session controller, the application server for providing services to the terminal in accordance with a hunting algorithm, the hunting algorithm including at least a cyclic algorithm for determining application servers from the pool of available application servers that are returned cyclically; registering, by the call session controller, the terminal with the selected application server; detecting, by the call session controller, a status of the selected application server; and re-registering, by the call session controller, the terminal with a second application server, upon detecting a failed status of the selected application server, in order for the second application server to take over the services provided by the selected application server to the terminal.