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.
回铃音，即一方呼叫另一方时，呼叫接通前呼叫方听到的声音。
This will contain the purchasable game, mugs, posters, T-shirts, books, maybe even telephone ring-tone versions of game sounds.
这包括可购买的游戏、杯子、T 恤衫、图书，甚至是游戏音效的手机铃声。
Using these terms in daily business is about as professional as wearing a novelty tie or having a wacky ring-tone on your phone.
在日常事务中使用这些术语就如同带新奇的领带或使用怪异的电话铃声一样，让人觉得那么不自然。

My cell phone rings and because one has the capacity nowadays to select your own ring tone--right?
我的手机响了,因为现在每个人都可以,选择你自己的铃声,对吧
耶鲁公开课 - 聆听音乐课程节选

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.