Abstract: The invention concerns a central base for a private wireless local area network wherein the central base includes electronic circuits that include an electronic central unit and which is supplied with electricity with at least one live supply line intended to be connected to an external electricity power source. The central base is suitable for communicating on the one hand with a public telecommunication network, and on the other hand with at least one wireless peripheral device according to a digital bi-directional wireless protocol for a private wireless local area network.

Abstract: Radio paging receiver comprising a central unit associated with a memory containing a tree-structured database comprising a plurality of menu pages and text pages, each menu page including at least an entry capable of being selected to display on the screen another menu page or a text page. Each entry of each menu page comprises a data field capable of being displayed and a call code corresponding to another menu page or text page. Moreover, the central unit is designed for updating the stored menu pages on the basis of radio messages comprising a menu page identification code and at least one entry designed to appear in the menu page presenting said identification code.