We must accept the risky hypothesis that the antiworld this town intelligent beings who consider, with respect to our existence in this world, problems similar to which we tried to solve with respect to the world of them, to the antiworld indeed. Of the previous thing it is possible to be noticed, that psicofona raises to us great incognitos, that are necessary to make use of other disciplines, such as the physics, electronics, mathematics philosophy, cosmology, etc, that united give to the parapsicologa the tools necessary to analyze it. I consider, that when we concentrate ourselves to investigate thorough in this one phenomenon, many of the traditional concepts of some disciplines, will have to be changed radically, and perhaps, such discoveries bring about sadness to us when giving us account that we were enclaustrados in dark means to our reality. Possibly it changes the conception than we understand by Universe and that as comments Muntaola, that visible and tangible world to which as much importance we grant, is not more than a debilitated reflection of the true living world, in which an energy all powerful one, together with an immense intelligence, it resides indeed in the hair net, fundamental source of the life and the thought. How attract the voices of the space? Most well-known she is the one of the Tape recorder, that consists of putting into operation to the apparatus, having taken care of that the speed oscillates between nine and average and nineteen centimeters per second, recommending itself lowest. The volume must be to the maximum, which perhaps makes difficult hearing, since all class of noise will be listened to. The person who realises the experiment and accompanies that (if the case occurs it) around the apparatus addresses questions to a passed away relative or to an historical personage or to that wishes, according to the custom that is followed by those they practice the spiritism.