Patent ID: 9491668
Filing Date: 2016-11-08
CPC Classification: H04W

Claim Text:
1. A method of informing a control node in a serving communication network of address information about a session anchor node in the serving communication network, wherein the control node is accessible by a terminal via a circuit switched access of the serving communication network, wherein the serving communication network of the terminal is different from an internet protocol based home communication network of the terminal, the method being executed by a session anchor node in the home communication network, the method comprising: receiving, from the control node, an update request for the control node being updated of the address information about the session anchor node in the serving communication network, receiving the address information about the session anchor node in the serving communication network, sending the received address information based on the received update request to the control node, and receiving, via a packet switched access of the serving communication network, a packet switched registration request for packet switched registering a subscriber of the terminal in the home communication network together with the address information of the session anchor node in the serving communication network.