Definition: A thermotelephonic is a type of telephony system that utilizes the principle of thermoelectricity to transmit voice signals. It works by converting thermal energy into electrical energy, which can then be transmitted over long distances using cables or other means. In a thermotelephonic system, the phonometer converts the temperature difference between two speakers into electrical energy and sends it through a cable or wire. The signal is then received by the receiver, who compares the voltage level of the signal
what should be said.