Abstract: A proxy server is used to provide various services managed by a plurality of dedicated servers to subscribers using terminals connected to a communication network. The proxy device has a three-tier type of architecture, with a stage for presenting services to terminals through the network, a service multiplexing stage communicating with the presentation stage, and a service access stage communicating with the multiplexing stage and including a plurality of access modules each associated with a respective dedicated server. The various services managed by the dedicated servers are multiplexed by the central stage which holds sessions with the subscribers without requiring a particular awareness of the services managed by the dedicated servers, nor of the physical features of the terminals.