{"json_modified": "2016-07-22T12:57:48.680882", "uuid": "aeb3bd25-21d0-4c52-8b32-0491193f7357", "title": "RTCPeerConnection.createOffer()", "url": "/en-US/docs/Web/API/RTCPeerConnection/createOffer", "tags": ["API", "WebRTC", "Reference", "RTCPeerConnection", "Experimental", "createOffer", "Method"], "translations": [], "modified": "2016-07-22T12:57:48", "label": "RTCPeerConnection.createOffer()", "localization_tags": [], "locale": "en-US", "id": 172389, "last_edit": "2016-07-22T12:57:40", "summary": "The <strong><code>createOffer()</code></strong> method of the <a href=\"/en-US/docs/Web/API/RTCPeerConnection\" title=\"The RTCPeerConnection interface represents a WebRTC connection between the local computer and a remote peer. It provides methods to connect to a remote peer, maintain and monitor the connection, and close the connection once it's no longer needed.\"><code>RTCPeerConnection</code></a> interface initiates the creation of an <a class=\"glossaryLink\" href=\"/en-US/docs/Glossary/SDP\" title=\"SDP: SDP (Session Description Protocol) is the standard describing a peer-to-peer connection. SDP contains the codec, source address, and timing information of audio and video.\">SDP</a> offer which includes information about any <a href=\"/en-US/docs/Web/API/MediaStreamTrack\" title=\"The MediaStreamTrack interface represents&#xA0;a media source in the User Agent, like video or audio tracks.\"><code>MediaStreamTrack</code></a>s already attached to the WebRTC session, codec and options supported by the browser, and any candidates already gathered by the <a class=\"glossaryLink\" href=\"/en-US/docs/Glossary/ICE\" title=\"ICE: ICE (Interactive Connectivity Establishment) is a framework used by WebRTC (among other technologies) for connecting two peers to each other, regardless of network topology (usually for audio and/or video chat). This protocol lets two peers find and establish a connection with one another even though they may both be using Network Address Translator (NAT) to share a global IP address with other devices on their respective local networks.\">ICE</a> agent, for the purpose of being sent over the signaling channel to a potential peer to request a connection or to update the configuration of an existing connection.", "sections": [{"id": "Quick_Links", "title": null}, {"id": "Syntax", "title": "Syntax"}, {"id": "Parameters", "title": "Parameters"}, {"id": "RTCOfferOptions_dictionary", "title": "RTCOfferOptions dictionary"}, {"id": "Deprecated_parameters", "title": "Deprecated parameters"}, {"id": "Return_value", "title": "Return value"}, {"id": "Example", "title": "Example"}, {"id": "Specifications", "title": "Specifications"}, {"id": "Browser_compatibility", "title": "Browser compatibility"}], "slug": "Web/API/RTCPeerConnection/createOffer", "review_tags": []}