The BS-464 is a device which is placed solely on the panel 

warning of BS-468 OLYMPIA ELECTRONICS. It can receive and send SMS and 

calls to and from selected telephone numbers. Telephone this number 

They are stored in memory in the control unit and do not fade in case 

power failure while you can replace them by the user as many times 

needed. There is also the possibility to receive commands from unknown mem. numbers 

which are not stored in memory if the user so wishes.