Setting up CLUE telepresence sessions via the WebRTC data channel

In this paper we present the current results of our ongoing work in the field of standardization of the CLUE telepresence framework within the Internet Engineering Task Force. We first introduce the CLUE architecture and data model. Then, we move to the definition of an application-level protocol for the negotiation and setup of telepresence sessions between CLUE-enabled entities. We propose to transport CLUE protocol messages on top of the WebRTC data channel, which is a further ongoing effort involving both the Internet and the World Wide Web standards organizations. The data channel allows for low-latency, secure transmission of generic data in a peer-to-peer fashion. The paper also describes a proof-of-concept implementation of the mentioned features. Such an implementation aims to represent a living playground for the collection of real-world data for the definition of a call flows standard document illustrating protocol interactions and use cases.