dial tone

音標(biāo)發(fā)音

The phone must be out of order if you can’t hear a dial tone.
如果聽(tīng)不到撥號(hào)音，電話一定是壞了。
I've been looking around for a "commercially supported cloud-based VOIP PBX that provides dial tone" for the past few weeks and I keep coming up empty on the SIP phones.
在過(guò)去的幾周里，我四處在尋覓著一個(gè)“商業(yè)支撐下、基于云的并可提供撥號(hào)音的網(wǎng)絡(luò)電話交換機(jī)”，而一直無(wú)法享用SIP電話。
Like many other developers with a history in telecom, I learned that when you build a telephone switch, regulations say it must provide dial tone in 40ms, a difficult requirement to achieve.
像許多常年混跡于電信行業(yè)中的開(kāi)發(fā)人員一樣，我所學(xué)習(xí)到的是，若實(shí)現(xiàn)一個(gè)電話交換，則一定要在40毫秒內(nèi)發(fā)出撥號(hào)音，這是一個(gè)難以實(shí)現(xiàn)的需求。

The dial tone is that state of awareness of the divine that Buddy speaks of when he says- when he speaks of being with God before God said, "Let there be light."
撥號(hào)音是神學(xué)意識(shí)的體現(xiàn),巴蒂曾提過(guò)，當(dāng)他提到在上帝說(shuō),讓光芒普照大地，這句話前就與上帝同在時(shí)說(shuō)過(guò)“
耶魯公開(kāi)課 - 1945年后的美國(guó)小說(shuō)課程節(jié)選

The Web site is gone, and phoning the group's New York office yields a dial tone.
FORBES: Endorsement Rap
If I timed it right, he'd only hear a dial tone and I would be safe.
ENGADGET: Growing up Geek: Philip Berne Alt
You then had to wait hours for a dial tone, and pay exorbitant charges.
ECONOMIST: Press freedom

a continuous sound that tells you that a phone is connected to the phone system and is ready to be used