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RTCPeerConnection.remoteDescription

This is an experimental technology
Because this technology's specification has not stabilized, check the compatibility table for usage in various browsers. Also note that the syntax and behavior of an experimental technology is subject to change in future versions of browsers as the specification changes.

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.

Syntax

 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.

Example

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.");
}

Specifications

Specification Status Comment
WebRTC 1.0: Real-time Communication Between Browser
The definition of 'RTCPeerConnection.remoteDescription' in that specification.
Working Draft Initial specification.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) [1] (Yes) [1] No support (Yes) ?
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? ? ? No support ? ?

[1] Though this property is not prefixed, the interface it belongs to was until Firefox 44.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) [1] 22 (22) [1] No support (Yes) ?
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? ? 22.0 (22) No support ? ?

[1] Though this property is not prefixed, the interface it belongs to is, until Firefox 44.

See also

Document Tags and Contributors

 Contributors to this page: Sheppy, teoli
 Last updated by: Sheppy,