A remoting client and a remoting server are described. The system is implemented when the mute function is activated on a line connected to a conference call through a telecommunications network. An entropy coding unit 103 encodes coefficient data using a predetermined entropy coding scheme, with a reversible method that completely ensures forward direction and backward direction transform. , separating the products by conventional methods such as distillation. For example, the polling period may be less when there is synchronous activity than when there is no synchronous activity. This may provide one or more of the features associated with a proxy authentication server for the resources not located behind the proxy authentication server.