SMP-250 control and configuration program for server computer. Sending messages to one, several or all zones, to a satellite or group of satellites (areas). Editing groups of zones and/or areas. Graphic interface with maps of the installation. Assignmet priority levels for each message. Control and assignment of the amount of messages, depending on their origin. Allocation of musical programs to different zones. Automatic assignment of different types of gong depending on the type of warning: normal, alert, evacuation. Control of recording of digital announcements (WAV, MP3, WMA format ...) Programming of automatic messages and message volume memories (20) and music (10), according to schedules and remote activations. Levels of accessibility to the program's functions through passwords. Definition of user profiles. On-screen monitoring of the parameters and the public address status of each satellite. Historical files of events and alarms.