John C Klensin wrote:
is needed to do anything useful. Unlike what Paul seems to
imply by his assertion that the signaling mechanisms are
essentially audio because they are analogous to DTMF tones, I
believe those non-text top-level types are differentiated by the
base capability that is required to _render_ the type,
RFC2046:
(3) audio -- audio data. "Audio" requires an audio output
device (such as a speaker or a telephone) to "display"
the contents. An initial subtype "basic" is defined in
this document.
As Paul indicated, T.38 is used between gateways.
The receiving gateway turns the data into a telephone call.
In what way does this not satisfy *exactly* the requirements for the audio
top-level MIME type?
d/
--
Dave Crocker
Brandenburg InternetWorking
bbiw.net
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