Airbus Defence and Space Sas

Laurent Girardeau

Marc Cartigny

Each terminal wishing to access a communication service implemented in a communications network transmits an identifier of subscription to this service during a phase of registration () with the network. With each service subscription identifier is associated a call identifier to enable calling the terminal registered via the network. A system () intended to register at least one terminal () from amongst a plurality of terminals () in a telephony network includes means for dynamically changing the service subscription identifier () and the associated call identifier (), for at least one of said terminals, and means for re-registering () with said network each terminal for which the service subscription identifier and the associated call identifier have been dynamically changed.

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Maule, France

Laurent Girardeau