Today, let's talk about dialing. The design of dialing is completely based on the old telephone. Here, we choose the typical De Veau table telephone -- 1915. In the design of the story, the boss bought a telephone with a retro appearance, put it on the bar for free use, make a phone call, ask distant relatives and friends how is it? In the design, still maintain the overall style, especially the use of green to design, to ensure the degree of retro, the color of a strict control, especially the saturation control! For example, De Veau desk telephone is a rotary dial-up automatic telephone, which can send out dc dialing pulse, control the action of automatic switch, select the called user, and automatically complete the switching function, thus pushing the telephone communication to a new stage.