<P>L'INVENTION CONCERNE UNE INSTALLATION D'APPEL AUTOMATIQUE DE DETRESSE.</P><P>L'OBJET DE L'INVENTION EST UNE INSTALLATION D'APPEL AUTOMATIQUE DE DETRESSE RELIEE A UN RESEAU TELEPHONIQUE, CARACTERISEE EN CE QU'ELLE COMPREND UN MOYEN MC DE STOCKAGE D'UN MESSAGE VERBAL PRE-ENREGISTRE ET DE RESTITUTION EN DIRECTION DE LA LIGNE TELEPHONIQUE T DUDIT MESSAGE, UNE MEMOIRE M DE STOCKAGE D'UN OU PLUSIEURS NUMEROS TELEPHONIQUES PRE-SELECTIONNES, DE MOYENS MP POUR CONNECTER A LADITE LIGNE TELEPHONIQUE SUCCESSIVEMENT LA MEMOIRE M PUIS LESDITS MOYENS MC DE RESTITUTION DU MESSAGE PRE-ENREGISTRE, DE MOYENS P D'ALIMENTATION ELECTRIQUE ET UN SYSTEME B DE COMMANDE DE CONNEXION DE L'INSTALLATION A LA LIGNE TELEPHONIQUE.</P><P>APPLICATION AUX SYSTEMES AUTOMATIQUES D'APPEL DE DETRESSE.</P>
The installation e.g. for invalids etc., has an enclosure (1) containing a microprocessor (MP) which has a number of button switches (B) connected to it. These are located at strategic places in an occupied dwelling. The microprocessor is connected to a memory (M) and pulse generator (GI) and uses a clock unit (H) as a time base. A cassette recorder (MC) contains a message which is retrieved by the microprocessor when one of the buttons is pressed. The message is routed via a connector assembly (5) to a telephone line (T) to which a telephone handset (4) is connected. The installation is powered from the mains or batteries (P) and contains a loudspeaker (7) and microphone (8) connected by a switch (9) to allow a telephone conversation to be applied directly to the line in place of the handset. In another arrangement activation of the alarm call may be by means of a portable transmitter.