Static-component electronic device associable with individual house-phone sets with additional function of automatic house-phone answering system

摘要

A static-component electronic device with house-phone answering function, constituted by an additional modular element (EM) individually arrangeable next to each house-­phone set (CTK) of the system by means of mechanical and electric connection elements and comprising integrated-­circuit voice synthesizer means (SV), at least one probe (SO) for activating the synthesizer means, sensitive to the call signal arriving from the external post; a switching interface (IN) for selectively inserting on the line the synthesizer means or the house-phone set, as well as to connect the means and the set; and a local power supply circuit (ALK) capable of energizing the device both by means of the mains voltage and by means of the remote power supply of the house-phone system.