[AVTCORE] Fwd: New Version Notification for draft-hellstrom-avtcore-multi-party-rtt-solutions-04.txt
Gunnar Hellström <gunnar.hellstrom@ghaccess.se> Sat, 31 October 2020 10:03 UTC
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Subject: [AVTCORE] Fwd: New Version Notification for draft-hellstrom-avtcore-multi-party-rtt-solutions-04.txt
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A new version (-04) is available for draft-hellstrom-avtcore-multi-party-rtt-solutions The document is mainly intended as a background for the specification of multi-party procedures for real-time text in https://datatracker.ietf.org/doc/draft-ietf-avtcore-multi-party-rtt-mix/ The change from version -03 to -04 is mainly an alignment of the name of the sdp attribute "rtt-mix" used for capability negotiation of the multi-party procedures. Regards Gunnar -------- Vidarebefordrat meddelande -------- Ämne: New Version Notification for draft-hellstrom-avtcore-multi-party-rtt-solutions-04.txt A new version of I-D, draft-hellstrom-avtcore-multi-party-rtt-solutions-04.txt has been successfully submitted by Gunnar Hellstrom and posted to the IETF repository. Name: draft-hellstrom-avtcore-multi-party-rtt-solutions Revision: 04 Title: Real-time text solutions for multi-party sessions Document date: 2020-10-30 Group: Individual Submission Pages: 45 URL: https://www.ietf.org/archive/id/draft-hellstrom-avtcore-multi-party-rtt-solutions-04.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-04.html Htmlized: https://tools.ietf.org/html/draft-hellstrom-avtcore-multi-party-rtt-solutions-04 Diff: https://www.ietf.org/rfcdiff?url2=draft-hellstrom-avtcore-multi-party-rtt-solutions-04 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. 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. The IETF Secretariat
- [AVTCORE] Fwd: New Version Notification for draft… Gunnar Hellström