A METHOD AND A SERVER FOR ENABLING A MULTIMODE COMMUNICATION UNIT TO BENEFIT FROM THE SERVICES OF A LOCAL AREA NETWORK WHEN SAID UNIT IS ROAMING IN A WIDE AREA NETWORK

摘要

For enabling a multimode communication unit (MCU2) to benefit from the services of a local area network (EN) when said unit is roaming in a wide area network (PLMN), this local area network comprising a communication server (CS) for setting up calls and providing services, the proposed method comprises the steps of: - establishing a bidirectional voice channel between the multimode communication unit (MCU2) and a mobility server (MS) in the local area network (EN), via said wide area network (PLMN), - requesting the mobility server (MS) to authenticate the multimode communication unit (MCU2), and then to register it in said communication server (CS), - and activating a virtual phone in said mobility server (MS), said virtual phone having an extension number proper to the multimode communication unit (MCU2), and behaving as a wired phone of the local area network (EN), for requesting a call setup to another terminal, and for accepting a call setup requested by another terminal.