ORTC Walk Through – IETF 88

Announcing an ORTC API Walkthrough

Object RTC - WebRTC

Update: The meeting will be held in the Prince of Wales Room, 3rd Floor NE Corner

Update: We will be streaming live video with chat

Update: Remote Participation will be available


A group of people looking for alternatives to SDP Offer/Answer formed the W3C Object RTC (ORCA) Community Group in July to develop an alternative API.  The Community Group published its first draft specification on October 11.

Since many people interested in WebRTC will be at IETF 88 in Vancouver, Robin Raymond, Chair of the ORCA Community Group has offered to lead a walkthrough of the ORTC specification from 3-5pm Sunday November 3.

The event will include a tutorial on the ORTC API as well as a discussion of sample code and a demo of a prototype implementation.

Space is limited. For an invitation with details, please send an email to with your:

  • Name
  • Company affiliation
  • Email address

ORTC Live Demo at IIT RTC Expo


Last week marked the first time the ORTC API was demonstrated in public.  Bernard Aboba (Microsoft) was joined by Robin Raymond (Hookflash) as they demonstrated an early prototype built on the ORTC API at the IIT RTC Expo in Chicago.

Adalberto Foresti (Principal Program Manager, Microsoft Open Technologies, Inc.) had this to say about ORTC…

Microsoft Open Technologies has re-worked our previous prototype and demo code to use ORTC. The prototype demonstrates how to support H.264/AVC video without SDP, by building the appropriate JavaScript code and without introducing any changes in the relevant parts of the ORTC specification. To be very clear, this is a first stab at an implementation, and better/faster/more stable versions are upcoming. The main objective is to determine that the W3C ORTC spec is easily implementable on top of existing stacks and usable by real Web developers.

You can get involved by downloading the prototype here, or join the discussion in the W3C ORTC Community Group and contribute code to implementations in the ORTC GitHub repository. We’re interested in your feedback on how to best achieve the industry’s shared goals for web-based realtime communications in the browser.

Microsoft joined the ORTC community and fully supports the ORTC approach, which is very consistent with our original CU-RTC-Web proposal.

In conclusion, the realtime communications over the Web community is moving toward the shared goal of simple, reliable, plugin-free real-time communications in the browser, and this prototype is an important step in the journey. It’s a first step, and we’ll continue to work with the community to improve its functionality, performance and stability.

read more…

Join the W3C Community Group and help cultivate open web concepts in RTC models.

First Draft: ORTC – Object API for WebRTC

ORTC API - Draft

The first ORTC API reference draft has been published as a report in the ORCA W3C Community Group today. This is the first step, one of many, in helping the WebRTC community understand the benefits of an object based API for WebRTC.  It is still early but we do hope this web-centric approach will be taken seriously by all looking to the future of WebRTC.  We welcome any and all feedback.

Robin Raymond, Chair of the ORCA Community Group – will be speaking on RTC Identity models at IIT RTC in Chicago next week.  If you are attending please check the agenda for the correct timing of this panel. Robin is always up for some good conversation around ORTC, Federated Identities & Open Peer.

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