当她第二次拨号时，才意识到没有拨号音。
It was only as she tried for the second time that she realized that there was no dialling tone.
我得不到正常的拨号音。
请先拨9，听到拨号音后再拨您所要的号码。
Please press 9 first and when you hear the dialing tone, press the number you want.
找到一个基于云的网络电话路由器，该设备还提供拨号音。
Find a cloud based VOIP PBX out there that is commercially supported that provides dial tone.
没有拨号音。请确定电话线已正确连接到调制解调器上。
There is no dial tone. Make sure your phone line is properly connected to the modem.
不清楚，反正它不能正常工作了。我听不到任何拨号音。
I don't know. It can't work normally anyway. I can't hear any dialing tones.
无拨号音。请确保调制解调器与计算机和电话线连接正确。
No dial tone. Make sure the modem is correctly connected to the computer and phone line.
在滤波部分，高组滤波和拨号音频滤波等使用了开关电容技术。
The filter section uses switched capacitor techniques for high-and low-group filters and dial-tone rejection.
朵丽丝：真的？我一点都不知道，我来查查看。是的，它毫无声响，没有拨号音。
DORIS: Really? I had no idea. Let me check. Yes, it's dead. There's no dial tone.
不过在这个电子系统中，一拿起手机马上就能听到拨号音。然后只要拔分机号就行了。
This is almost instantaneous with this electronic system. Then simply dial the numbers of the extension.
拨号音是神学意识的体现,巴蒂曾提过，当他提到在上帝说,让光芒普照大地，这句话前就与上帝同在时说过
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."
如果未听到拨号音，表明您所在单位或您的电话可能不支持这种对外呼叫类型，或需要额外的访问号码。
If you don't hear a dial tone, your organization or telephone might not support this type of outside call, or might require an additional access code.
在过去的几周里，我四处在寻觅着一个“商业支撑下、基于云的并可提供拨号音的网络电话交换机”，而一直无法享用SIP电话。
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.
DSP处理器完成语音处理的部分，包含了语音压缩、回波消除、拨号音的产生、语音打包等等，这些基本上都属于信号处理的范畴。
DSP performs voice process part, including voice compression, echo cancellation, tone activity detection, tone detection and generation, voice packet, these are signal process scope.
多数人承认随着新世纪的到来，交换机不大可能丢失拨号音，会继续提供电话处理，但观察家们告诫说一些重要的附属功能可能会失去。
While most admit that switches aren't likely to lose dial tone and will continue to provide call processing as the new century kicks off, they caution the important adjunct functionality may be lost.
像许多常年混迹于电信行业中的开发人员一样，我所学习到的是，若实现一个电话交换，则一定要在40毫秒内发出拨号音，这是一个难以实现的需求。
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.
像许多常年混迹于电信行业中的开发人员一样，我所学习到的是，若实现一个电话交换，则一定要在40毫秒内发出拨号音，这是一个难以实现的需求。
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.
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