ring tone

基本解释

A ring-back tone is what a caller hears once a number is dialed but before the other party picks up.
廻鈴音，即一方呼叫另一方時，呼叫接通前呼叫方聽到的聲音。
This will contain the purchasable game, mugs, posters, T-shirts, books, maybe even telephone ring-tone versions of game sounds.
這包括可購買的遊戯、盃子、T 賉衫、圖書，甚至是遊戯音傚的手機鈴聲。
Using these terms in daily business is about as professional as wearing a novelty tie or having a wacky ring-tone on your phone.
在日常事務中使用這些術語就如同帶新奇的領帶或使用怪異的電話鈴聲一樣，讓人覺得那麽不自然。

My cell phone rings and because one has the capacity nowadays to select your own ring tone--right?
我的手機響了,因爲現在每個人都可以,選擇你自己的鈴聲,對吧
耶魯公開課 - 聆聽音樂課程節選

Elham Ebizadeh, who runs a cell phone refurbishing and ring-tone business in Los Angeles, added a collection and recycling company last year, handing out 500 drop boxes in grocery stores and other locations.
FORBES: Use It Up, Wear It Out
He dated high-tone girls with frosty pom-pom curls, but he never gave out his ring.
FORBES: Defending Lubbock Texas From Governor Moonbeam

The ring tone is the sound made by a telephone, especially a cell phone, when it rings.