Patent ID: 8392582
Filing Date: 2013-03-05
Classification: H04L

Abstract:
1. A method for initiating a session in a packet based multimedia system for a terminal not having a subscription in the packet based multimedia system, connected to the packet based multimedia system via a network access gateway for providing packet based multimedia services to the terminal, the method comprising the steps: Receiving a trigger message from the network access gateway for invocation of the packet based multimedia service for the terminal, by the packet based multimedia system, Retrieving an identity of the terminal, from the trigger message, by the packet based multimedia system, Coupling the identity of the terminal with a virtual subscription, by the packet based multimedia system, Initiating a session for the coupled virtual subscription, by the packet based multimedia system, Coupling the identity of the terminal with a session identifier, by the packet based multimedia system, and Decoupling the identity of the terminal from the virtual subscription when the session is initiated, by the packet based multimedia system.