electronic equipment that converts sound into electrical signals that can be transmitted over distances and then converts received signals back into sounds
get or try to get into communication (with someone) by telephone
transmitting speech at a distance
chemical process in which one atom or ion or group changes places with another
the act of giving something in return for something received
a mutual expression of views (especially an unpleasant one)
the act of changing one thing for another thing
a workplace that serves as a telecommunications facility where lines from telephones can be connected together to permit communication
