拨号钮 dial buttons

信号按钮 signal button ; signaling key ; signal push button ; call button

按钮拨号盘 push button dialing pad ; push button dial

按钮式拔号 push button dialing

按钮式拨号盘 button type dial

遮断信号按钮 obstruction signal button

拨号按钮 dialing button

按钮代号 Button code

拨号旋钮 Turns Counting Dials