call button

基本解释

Call-button C : press this button to send on CALL TONES.
呼叫按鈕：按下這個按鈕，以傳送出電話口氣。
To call in a nurse, he has to push a red emergency-call button from his bed. But where is the red button?
要叫來護士，他得從牀上按一個紅色緊急呼叫鍵。可是紅色呼叫鍵呢？
blog.sina.com.cn
During a closing cycle, the release of the floor call push-button must release the Kc signal, insert the Ka signal and cancel the call.
在關門循環中，釋放樓層呼叫按鈕必須通過釋放Kc信號，插入Ka信號，竝取消呼叫進行。

People use a metal call box with a push-to-talk button to connect to a live operator, as Rose Shuman explains: "You just push a button, a big green button, and that will connect you directly to our operators who are sitting in front of computers, and speak your language.

For instance, an ad for a retailer with both physical stores and a website could include a click-to-call button or map for people searching from a smartphone or, for people searching from a computer, a link to the website.
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Push-button call boxes are being installed in 186 stores to make an associate appear within 60 seconds.
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One of the world's most conspicuously successful centres of enterprise lies in that bit of California known as Silicon Valley: computing is today's knowledge-based industry par excellence (see survey) The new jobs in tomorrow's industries, in manufacturing and services alike, will call for more than button-pressing automatons.
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