AW: [MMUSIC] WG Last Call on draft-rajeshkumar-mmusic-gpmd-02.txt

> -----Ursprüngliche Nachricht-----
> Von: Flemming Andreasen [mailto:fandreas@cisco.com]
> Gesendet: Freitag, 2. Mai 2003 04:01
> An: Joerg Ott
> Cc: mmusic@ietf.org; Colin Perkins; rkumar@cisco.com
> Betreff: Re: [MMUSIC] WG Last Call on
> draft-rajeshkumar-mmusic-gpmd-02.txt
> 
> 
> In some off-line discussions, it was suggested, that we add 
> the following
> as a new paragraph #3 in Section 3 (which defines the "vbd" gpmd
> parameter):
> 
> When use of a "vbd" media format has been negotiated, voice-band data
> SHOULD be transported using either a "vbd" media format or another
> negotiated media format suitable for transporting the 
> voice-band data in
> question. Examples of such media formats include RFC 2833 
> (with support
> for relevant data modem and fax tones),

Up to now my understanding of RFC2833 was, that it can be used
to relay the connection setup negotiation tones between fax/modem 
terminals, but not the fax/modem payload. Am I wrong with this ?

> T.38 fax relay, and 
> V.150 modem
> relay. Non-examples include G.723, G729, and PCMU without an
> accompanying "vbd" gpmd parameter. Note that selection of specific
> suitable media formats is typically done on the basis of stimuli, such
> as the detection of an answer tone, a fax preamble and a modem CM
> signal, which may occur at different times.
> 
> 
> Please let me know if you disagree with this.
> 
> -- Flemming
> 
> 

I agree with this additional paragraph in general.

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