Instrumental transcommunication

Instrumental transcommunication (ITC) is a proposed methodology for mediumship centered around the use of machines (in particular, radio devices) to communicate with spirits. The idea was initially popularized (if not invented) by Thomas Edison, who strongly believed such a device was possible. "[my device] would not function by any occult, mystifying, mysterious, or weird means, employed by so-called "mediums", but by scientific methods ... I am engaged in the construction of one such apparatus now, and I hope to be able to finish it before very many months"

- Thomas Edison ".

Edison was never able to complete his device, which has since been dubbed the "spirit phone".