[AVTCORE] Fwd: I-D Action: draft-hellstrom-mmusic-multi-party-rtt-02.txt
Gunnar Hellström <gunnar.hellstrom@omnitor.se> Tue, 03 March 2020 22:41 UTC
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From: Gunnar Hellström <gunnar.hellstrom@omnitor.se>
To: "mmusic (E-mail)" <mmusic@ietf.org>, "avtcore@ietf.org" <avtcore@ietf.org>
Thread-Topic: I-D Action: draft-hellstrom-mmusic-multi-party-rtt-02.txt
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Date: Tue, 03 Mar 2020 22:41:42 +0000
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Subject: [AVTCORE] Fwd: I-D Action: draft-hellstrom-mmusic-multi-party-rtt-02.txt
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A new version of draft-hellstrom-mmusic-multi-party-rtt is published. It now has consice recommendations for transport and negotiation of multi-party real-time text, and references a short standards track draft specifying an RTP based transport enhancement for RTT: https://datatracker.ietf.org/doc/draft-hellstrom-avtcore-multi-party-rtt-source/ Both will be presented in the avtcore session on March 27. Regards Gunnar Hellström A New Internet-Draft is available from the on-line Internet-Drafts directories. Title : Real-time text media handling in multi-party conferences Author : Gunnar Hellstrom Filename : draft-hellstrom-mmusic-multi-party-rtt-02.txt Pages : 38 Date : 2020-03-03 Abstract: This memo specifies methods for Real-Time Text (RTT) media handling in multi-party calls. The main RTT transport is to carry Real-Time text by the RTP protocol in a time-sampled mode according to RFC 4103 RFC 4103 [RFC4103] . The mechanisms enable the receiving application to present the received real-time text medium separated per source, in different ways according to user preferences. Some presentation related features are also described explaining suitable variations of transmission and presentation of text. Call control features are described for the SIP environment. A number of alternative methods for providing the multi-party negotiation, transmission and presentation are discussed and a recommendation for the main one is provided. The main solution for centralized multi-party handling of real-time text is achieved through a media control unit coordinating multiple RTP text streams into one RTP stream. Alternative methods using a single RTP stream and source identification inline in the text stream are also described, one of them being provided as a lower functionality fallback method for endpoints with no multi-party awareness for RTT. Bridging methods where the text stream is carried untouched by the bridge are also discussed. Brief information is also provided for multi-party RTT in the WebRTC environment. The IETF datatracker status page for this draft is: https://datatracker.ietf.org/doc/draft-hellstrom-mmusic-multi-party-rtt/ There are also htmlized versions available at: https://tools.ietf.org/html/draft-hellstrom-mmusic-multi-party-rtt-02 https://datatracker.ietf.org/doc/html/draft-hellstrom-mmusic-multi-party-rtt-02 A diff from the previous version is available at: https://www.ietf.org/rfcdiff?url2=draft-hellstrom-mmusic-multi-party-rtt-02 Please note that it may take a couple of minutes from the time of submission until the htmlized version and diff are available at tools.ietf.org. Internet-Drafts are also available by anonymous FTP at: ftp://ftp.ietf.org/internet-drafts/
- [AVTCORE] Fwd: I-D Action: draft-hellstrom-mmusic… Gunnar Hellström