在此页

• 特性
• 方法
• 事件
• 范例
• 规范
• 浏览器兼容性
• 另请参阅
• 相关话题

RTCDTMFSender interface provides a mechanism for transmitting DTMF codes on a WebRTC RTCPeerConnection . You gain access to the connection's RTCDTMFSender 透过 RTCRtpSender.dtmf property on the audio track you wish to send DTMF with.

The primary purpose for WebRTC's DTMF support is to allow WebRTC-based communication clients to be connected to a public-switched telephone network (PSTN) or other legacy telephone service, including extant voice over IP (VoIP) services. For that reason, DTMF can't be used between two WebRTC-based devices, because there is no mechanism provided by WebRTC for receiving DTMF codes.

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特性

RTCDTMFSender.toneBuffer 只读

DOMString which contains the list of DTMF tones currently in the queue to be transmitted (tones which have already been played are no longer included in the string). See toneBuffer for details on the format of the tone buffer.

方法

RTCDTMFSender.insertDTMF()

Given a string describing a set of DTMF codes and, optionally, the duration of and inter-tone gap between the tones, insertDTMF() starts sending the specified tones. Calling insertDTMF() replaces any already-pending tones from the toneBuffer . You can abort sending queued tones by specifying an empty string ( "" ) as the set of tones to play.

事件

监听这些事件使用 addEventListener() 或通过把事件监听器赋值给 on eventname 特性为此接口。

tonechange

tonechange event is sent to the RTCDTMFSender instance's event handler to indicate that a tone has either started or stopped playing.
Also available using the ontonechange event handler property.

范例

See the article Using DTMF with WebRTC for a full example.

规范

规范	状态	注释
WebRTC 1.0: Real-time Communication Between Browsers The definition of 'RTCDTMFSender' in that specification.	候选推荐

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
RTCDTMFSender	Chrome 27	Edge ≤79	Firefox 52	IE 不支持 No	Opera Yes	Safari ?	WebView Android 4.4	Chrome Android 27	Firefox Android 52	Opera Android Yes	Safari iOS ?	Samsung Internet Android 1.5
canInsertDTMF	Chrome 27	Edge ≤79	Firefox ?	IE 不支持 No	Opera Yes	Safari ?	WebView Android Yes	Chrome Android 27	Firefox Android ?	Opera Android Yes	Safari iOS ?	Samsung Internet Android 1.5
insertDTMF	Chrome 27	Edge ≤79	Firefox 52	IE 不支持 No	Opera Yes	Safari ?	WebView Android 4.4	Chrome Android 27	Firefox Android 52	Opera Android Yes	Safari iOS ?	Samsung Internet Android 1.5
ontonechange	Chrome 27	Edge ≤79	Firefox 52	IE 不支持 No	Opera Yes	Safari ?	WebView Android Yes	Chrome Android 27	Firefox Android 52	Opera Android Yes	Safari iOS ?	Samsung Internet Android 1.5
toneBuffer	Chrome 27	Edge ≤79	Firefox 52	IE 不支持 No	Opera Yes	Safari ?	WebView Android 4.4	Chrome Android 27	Firefox Android 52	Opera Android Yes	Safari iOS ?	Samsung Internet Android 1.5
tonechange event	Chrome 27	Edge ≤79	Firefox 52	IE 不支持 No	Opera Yes	Safari ?	WebView Android Yes	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 API
• Using DTMF with WebRTC
• RTCRtpSender.dtmf
• RTCPeerConnection
• RTCRtpSender

元数据

• 最后修改： Mar 18, 2019

相关话题

1. WebRTC API
2. RTCDTMFSender
3. 特性

   1. ontonechange
   2. toneBuffer
4. 方法

   1. insertDTMF()
5. 继承：

   1. EventTarget
6. Related pages for WebRTC

   1. MediaDevices.getUserMedia()
   2. Navigator.mediaDevices
   3. RTCCertificate
   4. RTCDTMFToneChangeEvent
   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