[AVTCORE] New Version Notification for draft-hellstrom-avtcore-multi-party-rtt-solutions-08.txt
Gunnar Hellström <gunnar.hellstrom@ghaccess.se> Thu, 30 December 2021 20:52 UTC
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Subject: [AVTCORE] New Version Notification for draft-hellstrom-avtcore-multi-party-rtt-solutions-08.txt
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A new version of draft-hellstrom-avtcore-multi-party-rtt-solutions is available. Even if this draft was mainly needed to reach conclusions on how to specify RTP-based multi-party Real-Time Text (RTT) in RFC 9071, it may have some value in further work on multi-party RTT. Therefore I refreshed it and updated references, and made clear which solutions were selected for RFC 9071. Regards Gunnar -------- Vidarebefordrat meddelande -------- Ämne: New Version Notification for draft-hellstrom-avtcore-multi-party-rtt-solutions-08.txt Datum: Thu, 30 Dec 2021 12:43:06 -0800 Från: internet-drafts@ietf.org Till: Gunnar Hellstrom <gunnar.hellstrom@ghaccess.se> A new version of I-D, draft-hellstrom-avtcore-multi-party-rtt-solutions-08.txt has been successfully submitted by Gunnar Hellstrom and posted to the IETF repository. Name: draft-hellstrom-avtcore-multi-party-rtt-solutions Revision: 08 Title: Real-time text solutions for multi-party sessions Document date: 2021-12-30 Group: Individual Submission Pages: 47 URL: https://www.ietf.org/archive/id/draft-hellstrom-avtcore-multi-party-rtt-solutions-08.txt Status: https://datatracker.ietf.org/doc/draft-hellstrom-avtcore-multi-party-rtt-solutions/ Html: https://www.ietf.org/archive/id/draft-hellstrom-avtcore-multi-party-rtt-solutions-08.html Htmlized: https://datatracker.ietf.org/doc/html/draft-hellstrom-avtcore-multi-party-rtt-solutions Diff: https://www.ietf.org/rfcdiff?url2=draft-hellstrom-avtcore-multi-party-rtt-solutions-08 Abstract: This document specifies methods for Real-Time Text (RTT) media handling in multi-party calls. The main discussed transport is to carry Real-Time text by the RTP protocol in a time-sampled mode according to RFC 4103. The mechanisms enable the receiving application to present the received real-time text media, 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 ones is provided. The main solution for SIP based 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 without the contents being dealt with in detail by the bridge are also discussed. Brief information is also provided for multi-party RTT in the WebRTC environment. The intention is to provide background for decisions, specification and implementation of selected methods. The recommendations have resulted in the published RFC 9071. This document is maintained mainly to present the reasoning behind the recommendations and provide material for any further work in other application areas. The IETF Secretariat
- [AVTCORE] New Version Notification for draft-hell… Gunnar Hellström