[dispatch] Disaggregate Media: updated charter proposal
"Salvatore Loreto" <salvatore.loreto@ericsson.com> Wed, 21 October 2009 07:59 UTC
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Date: Wed, 21 Oct 2009 09:59:04 +0200
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From: Salvatore Loreto <salvatore.loreto@ericsson.com>
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Subject: [dispatch] Disaggregate Media: updated charter proposal
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Hi there, Here a new/updated version of the charter proposal for Disaggregated Media. This version includes all the suggestions and comments received in the list discussion. Best regards Salvatore Loreto Disaggregated Media WG Charter ------------------------------ Disaggregated media refers to the ability for a user to create a multimedia session combining different media streams coming from different devices under his or her control so that they are treated by the far end of the session as a single media session. Generally, a given participant uses a single device to establish (or participate in) a given multimedia session. Consequently, the SIP signaling to manage the multimedia session and the actual media streams are typically co-located in the same device. In scenarios involving disaggregated media, a user wants to establish a single multimedia session combining different media streams coming from different devices under his or her control. This creates a need to coordinate the exchange of the those media streams within the multimedia session. There are a number of existing mechanisms that can be used to coordinate different devices under user's control and to involve them in the call (e.g. Message Bus (Mbus) [RFC3259], Megaco [ITU-T H.248.1] and SIP 3pcc [RFC3725]). However the use of all those mechanisms requires the presence of a "master" device. That is, at least one among the different devices under the control of the same user must support this mechanism and be able to become a controller for the other in the call. Moreover, the "master" device is supposed to remain involved in the user's session for its entire duration given that performing a handover of the master role is typically cumbersome and sometime impossible. The objective of this working group is to develop a framework for Disaggregated Media in "loosely-coupled" scenarios, where no single device needs to remain in the session for its entire duration and no single device needs to act as a master. The framework may describe the use of existing mechanisms (e.g., 3pcc), extensions to them, and new mechanisms. Specifically, the proposed working group will develop the following deliverables: 1. A framework document describing key design considerations for disaggregated media mechanism(s). The document will include use cases and functional requirements for the mechanism(s). 2. Specifications of new mechanisms or extensions to existing mechanisms if the need is identified in the framework.
- [dispatch] Disaggregate Media: updated charter pr… Salvatore Loreto
- Re: [dispatch] Disaggregate Media: updated charte… Paul Kyzivat