Re: [Sip] Support for Multipart/MIME

[Paul Kyzivat <[e-mail]>]

Dan Wing wrote:

> I agree that multipart/mixed makes sense when you're sending
> different content-types and you want the receiver to process each
> one that he understands.  This is useful if you're doing an Invite
> that includes your location (application/sdp and 
> application/pidf+xml [draft-ietf-sip-location-conveyance]).
> 
> However, if you're sending SDP and SDPng, multipart/mixed does not
> make sense.  If you're sending SDP and SDPng, you want the answerer 
> to pick one.  For the next decade, anyone that understands SDPng 
> will also need to continue to understand SDP.  And we don't want the
> receiver to creatively use both the SDP offer and the SDPng offer.

It seems that this issue is moot, since SDPng seems to have been 
declared dead.

> Email is similar:  if you configure Thunderbird or Outlook to send 
> messages with text/plain and text/html they are put inside 
> multipart/related, not multipart/mixed.

Don't you mean multipart/alternative?

	Paul


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