Re: [AVTCORE] I-D Action: draft-hellstrom-avtcore-multi-party-rtt-solutions-02.txt

Gunnar Hellström <gunnar.hellstrom@ghaccess.se> Fri, 19 June 2020 19:16 UTC

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Subject: Re: [AVTCORE] I-D Action: draft-hellstrom-avtcore-multi-party-rtt-solutions-02.txt
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A new version is available of the overview of possible solutions for 
multi-party rtt.

  There is  added detail in the section on RTP translator model 
alternative in section 4.1.2.1.

This was done by inspiration from draft-ietf-avtcore-multiplex-guidelines/

/Gunnar

Den 2020-06-19 kl. 20:43, skrev internet-drafts@ietf.org:
> A New Internet-Draft is available from the on-line Internet-Drafts directories.
>
>
>          Title           : Real-time text solutions for multi-party sessions
>          Author          : Gunnar Hellstrom
> 	Filename        : draft-hellstrom-avtcore-multi-party-rtt-solutions-02.txt
> 	Pages           : 43
> 	Date            : 2020-06-19
>
> Abstract:
>     This document specifies methods for Real-Time Text (RTT) media
>     handling in multi-party calls.  The main transport is to carry Real-
>     Time text by the RTP protocol in a time-sampled mode according to RFC
>     4103 [RFC4103].  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 IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-hellstrom-avtcore-multi-party-rtt-solutions/
>
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-hellstrom-avtcore-multi-party-rtt-solutions-02
> https://datatracker.ietf.org/doc/html/draft-hellstrom-avtcore-multi-party-rtt-solutions-02
>
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-hellstrom-avtcore-multi-party-rtt-solutions-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/
>
>
> _______________________________________________
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-- 
Gunnar Hellström
GHAccess
gunnar.hellstrom@ghaccess.se