From: Paul Kyzivat <[EMAIL PROTECTED]>

   > Section 12.1 makes it clear that for multipart/alternative, only the 
   > handling property for the selected alternative matters.

   So you are saying that a multipart/alternative may have several parts 
   with handling=required, and that I only have to be capable of handling 
   the part I choose?

RFC 3459 uses multiparts in a somewhat different way that SIP does.
In SIP, the I-D suggests that components of a multipart/alternative
should have handling=optional and that the processor should ignore the
handling parameter:

        The UA SHOULD also set the 'handling' parameter of all the
        body part within the 'multipart/alternative' to 'optional'
        (the receiver will process the body parts based on the
        handling parameter of the 'multipart/alternative' body; the
        receiver will ignore the handling parameters of the body
        parts).

        The receiver SHOULD ignore the handling parameters of the body
        parts within the 'multipart/ alternative'.

Dale
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