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Ok, I was guiding myself more by the what I understood as type of apps. However, just for my clarity: if we wouldn't use the "relaxed rules" could I still use text/? Is text/t140 conformat to the 'traditional rules'?
None of the RTP payload formats -- not text, audio or video -- can be used with the 'traditional' rules. This is the reason why the MIME registration rules are being updated.
It is just that in the MIME presentation in SD it says that text/t140 does 'arguably' comply with the traditional rules...what this 'arguably' means was not clear to us. --cut--
The MIME subtype /3gpp-tt cannot be used for HTML download since for that purpose a 3gp file and therefore the video/3gp MIME type is used. So I think this is indeed restricted to RTP. However, what is the gain of doing that?
My point was that, since this is restricted to transport via RTP, it can be registered under the "text" top-level media type.
What I mean is what would be the use of having two, not one or the other.
The media type for the file format may well be different than that for the RTP payload format, if that's what you mean.
No. What I mean is what would be the use of having two for RTP, which in this case is just confusing. Jose
Colin