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• 句法
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

这是 实验性技术
检查 浏览器兼容性表格 要小心谨慎在生产中使用这之前。

RTCDTMFToneChangeEvent() 构造函数创建新 RTCDTMFToneChangeEvent .

句法

 var event = new RTCDTMFToneChangeEvent(type, options);
					

参数

type

DOMString containing the name of the event. This is always "tonechange" .

选项

A dictionary of type RTCDTMFToneChangeEventInit , which may contain one or more of the following fields:

tone

A DOMString containing a single DTMF tone character which has just begun to play, or an empty string ( "" ) to indicate that the previous tone has stopped playing. See Tone characters for details on what characters are permitted.

返回值

A newly-created RTCDTMFToneChangeEvent , configured as specified in the provided options.

Tone characters

The digits 0-9

These characters represent the digit keys on a telephone keypad.

The letters A-D

These characters represent the "A" through "D" keys which are part of the DTMF standard but not included on most telephones. These are not interpreted as digits. Lower-case "a"-"d" automatically gets converted to upper-case.

The pound/hash sign ("#") and the asterisk ("*")

These correspond to the similarly-labeled keys which are typically on the bottom row of the telephone keypad.

The comma (",")

This character instructs the dialing process to pause for two seconds before sending the next character in the buffer.

All other characters are unrecognized and will cause insertDTMF() to throw an InvalidCharacterError 异常。

规范

规范	状态	注释
WebRTC 1.0: Real-time Communication Between Browsers The definition of 'RTCDTMFToneChangeEvent()' in that specification.	候选推荐	初始定义。

浏览器兼容性

The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request. 更新 GitHub 上的兼容性数据

	桌面						移动
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
RTCDTMFToneChangeEvent() 构造函数	Chrome 27	Edge ≤18	Firefox 52	IE No	Opera Yes	Safari ?	WebView Android 4.4	Chrome Android 27	Firefox Android 52	Opera Android Yes	Safari iOS ?	Samsung Internet Android 1.5

图例

完整支持

完整支持

不支持

不支持

兼容性未知 ?

兼容性未知

另请参阅

• WebRTC
• Using DTMF with WebRTC
• Its usual target: RTCDTMFSender .

元数据

• 最后修改： 2019 年 3 月 23 日

相关话题

1. WebRTC API
2. RTCDTMFToneChangeEvent
3. 构造函数

   1. RTCDTMFToneChangeEvent()
4. 特性

   1. tone
5. 继承：

   1. 事件
6. Related pages for WebRTC

   1. MediaDevices.getUserMedia()
   2. Navigator.mediaDevices
   3. RTCCertificate
   4. RTCDTMFSender
   5. RTCDataChannel
   6. RTCDataChannelEvent
   7. RTCDtlsTransport
   8. RTCErrorEvent
   9. RTCIceCandidate
   10. RTCIceTransport
   11. RTCPeerConnection
   12. RTCPeerConnectionIceErrorEvent
   13. RTCPeerConnectionIceEvent
   14. RTCRtpReceiver
   15. RTCRtpSender
   16. RTCRtpTransceiver
   17. RTCSctpTransport
   18. RTCSessionDescription
   19. RTCStatsEvent
   20. RTCStatsReport
   21. RTCTrackEvent