The application pertains to a mobile telephone network architecture comprising an intermediate item of equipment positioned in said visiting network, said intermediate item of equipment comprising: reception means devised to receive data from a visit switching item of equipment; recording means devised to record said data; connection request means devised to send a request relating to an item of equipment for switching membership on the basis of said data; connection simulation means devised to provide said visit switching item of equipment with authorization to connect a user to a visiting network.