Patent ID: 7852809

Claim:
A method of providing session mobility to an IP based real-time session in a telecommunications network using the session initiation protocol for the setup and control of the session, whereby the session comprises a media stream between a first terminal associated to a first network access point of the telecommunications network and a second terminal associated to a second network access point of the telecommunications network, wherein the method comprises the steps of: intercepting a re-invite session initiation protocol signaling message, generated by the first terminal, related to session mobility of said session at a session-related session border controller of the telecommunications network such that the re-invite session initiation protocol signaling message is prevented from reaching the second terminal to protect the privacy of any movements of the first terminal; initiating a corresponding session hand-over of said session by said session border controller, the corresponding session hand-over being transmitted from the session border controller directly to the second terminal; and redirecting in said session hand-over the media stream of said session to a new network access point of the first terminal and/or a new terminal.