Re: [MMUSIC] Draft new: draft-holmberg-mmusic-t140-usage-data-channel

Bernard Aboba <bernard.aboba@gmail.com> Fri, 16 August 2019 23:02 UTC

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From: Bernard Aboba <bernard.aboba@gmail.com>
Date: Fri, 16 Aug 2019 16:02:23 -0700
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To: Christer Holmberg <christer.holmberg@ericsson.com>
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Subject: Re: [MMUSIC] Draft new: draft-holmberg-mmusic-t140-usage-data-channel
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You may be interested to know that
draft-holmberg-mmusic-t140-usage-data-channel appears relevant to "RTC
Accessibility Use Cases" recently developed by the W3C APA WG:
https://www.w3.org/WAI/APA/wiki/Accessible_RTC_Use_Cases



On Fri, Aug 9, 2019 at 10:42 AM Christer Holmberg <
christer.holmberg@ericsson.com>; wrote:

> Hi,
>
> Once upon a time in MMUSIC, there was work on a draft named
> draft-schwarz-mmusic-t140-usage-data-channel.
>
> Then, the authors stopped working on it, and nobody has been willing to
> take over.
>
> The draft is a 3GPP dependency, so there is a need to get it finalized.
>
> Some time ago I decided to take a close look at the draft, so see how much
> work it would take to finalize. One thing led ted to another, and I ended
> up re-writing the draft. Say hello to draft-holmberg-mmusic-t140-usage-data
> channel:
>
>
> https://www.ietf.org/id/draft-holmberg-mmusic-t140-usage-data-channel-00.txt
>
> The holmberg draft is based on the schwarz draft (also mentioned in the
> Acknowledgements), and much of the content is still the same. However, I
> have done editorial changes, and some re-structuring in order to better
> separate between the SDP considerations and the T.140 considerations.
>
> The NEW technical stuff is describing how the T.140 abstract service
> functions map to T.140 data channels established with SDP O/A.
>
> I have removed much of the Gateway text, because that's where most of the
> open issues were. That way, I also got rid of the dependency on
> draft-ietf-rtcweb-gateways, a draft I doubt is ever going to get finalized.
> If needed, gateway functions can be specified elsewhere, and 3GPP has
> already defined the H.248 parts for interworking between T.140 data channel
> and RFC 4103.
>
> There are currently no open issues in the draft.
>
> Regards,
>
> Christer
>
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