[AVT] Re: draft-ahmadi-avt-rtp-vmr-wb-01.txt

[Colin Perkins <csp at csperkins.org>]

On Wednesday 05 May 2004 18:57, sassan.ahmadi@nokia.com wrote:
...
> In the revised draft I have addressed all of your comments and concerns
> about the original draft. Major changes include
>
> 1- All comments from AVT chairs are addressed.
> 2- A header-free payload format has been added (just like RFC 3558)
> 3- Bandwidth-efficient mode is eliminated.
> 4- By some changes in Tables 2 and 3 in Section 6, the interworking
> function is completely eliminated.
> 5- The size of MIME parameter set has been reduced. The extra MIME
> parameters have been removed.
> 6- CDMA system issues have been removed from the document.
> 7- Signaling conflicts with AMR-WB have all been resolved both in the
> payload and the storage formats.
>
> Attached please find a PowerPoint presentation comprising highlights of
> the revised Internet Draft. Also please find the draft as well as
> detailed response to Magnus' comments.
>
> Considering the improvements and corrections that have been made in the
> revised draft, I would like to kindly ask IETF/AVT group to accept this
> Internet Draft as an AVT group work item now.
>
> I also kindly ask you to provide your feedback and comments to complete
> and finalize a RFC for VMR-WB.

This is certainly greatly improved, however it does not address my concern 
with respect to the signalling of AMR-WB compatible modes. I would suggest 
you study the Offer-Answer Model Considerations for the AMR-WB+ payload 
format (draft-sjoberg-avt-rtp-amrwbplus-01.txt) and follow a similar model 
for interoperability (i.e. require a VMR-WB capable endpoint to advertise 
support for the AMR-WB payload format, in addition to native VMR-WB, as an 
way of avoiding interoperability problems).

With that change made, I believe this would be appropriate to accept as an 
AVT work item (provided there are no other objections from the list).

-- 
Colin Perkins
http://csperkins.org/

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