The RTCAnswerOptions dictionary is used to provide optional settings when creating an SDP answer using RTCPeerConnection.createOffer() after receiving an offer from a remote peer. The createOffer() method's options parameter is of this type.


This dictionary inherits properties from the RTCOfferAnswerOptions dictionary, on which it's based.

Note: At this time, RTCAnswerOptions does not have any additional properties defined beyond those included in RTCOfferAnswerOptions. However, this is likely to change in the future, so the type has been defined in preparation for that eventuality.


Specification Status Comment
WebRTC 1.0: Real-time Communication Between Browsers
The definition of 'RTCAnswerOptions' in that specification.
Candidate Recommendation Initial definition.

Browser compatibility

ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
RTCAnswerOptionsChrome Full support 50Edge Full support ≤79Firefox Full support 42IE No support NoOpera ? Safari ? WebView Android Full support 50Chrome Android Full support 50Firefox Android Full support 42Opera Android ? Safari iOS ? Samsung Internet Android Full support 5.0


Full support
Full support
No support
No support
Compatibility unknown
Compatibility unknown