This is an experimental technology
Check the Browser compatibility table carefully before using this in production.

The read-only property RTCPeerConnection.remoteDescription returns a RTCSessionDescription describing the session (which includes configuration and media information) for the remote end of the connection. If this hasn't been set yet, this is null.

The returned value typically reflects a remote description which has been received over the signaling server (as either an offer or an answer) and then put into effect by your code calling RTCPeerConnection.setRemoteDescription() in response.


 var sessionDescription = peerConnection.remoteDescription;

On a more fundamental level, the returned value is the value of RTCPeerConnection.pendingRemoteDescription if that property isn't null; otherwise, the value of RTCPeerConnection.currentRemoteDescription is returned. See Pending and current descriptions in WebRTC connectivity for details on this algorithm and why it's used.


This example looks at the remoteDescription and displays an alert containing the RTCSessionDescription object's type and sdp fields.

var pc = new RTCPeerConnection();
var sd = pc.remoteDescription;
if (sd) {
  alert("Remote session: type='" +         
        sd.type + "'; sdp description='" +
        sd.sdp + "'");
else {
  alert("No remote session yet.");


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

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
remoteDescriptionChrome Full support 24Edge Full support 15Firefox Full support 22IE No support NoOpera Full support 43
Full support 43
Notes Promise-based version and unprefixed.
No support 38Ā ā€” 43
Notes Promise-based version.
Safari Full support 11WebView Android Full support YesChrome Android Full support YesFirefox Android Full support 44Opera Android Full support 43
Full support 43
Notes Promise-based version and unprefixed.
No support 41Ā ā€” 43
Notes Promise-based version.
Safari iOS Full support YesSamsung Internet Android Full support 6.0


Full support Ā 
Full support
No support Ā 
No support
See implementation notes.
See implementation notes.

See also