target="NewWindow">draft-jennings-sipping-multipart-00
This document addresses the issues
around using multipart with the SIP offer/answer framework. It specifies a way
to make an offer with a multipart/alternative MIME body and for the answer to
indicate which of the parts was selected for the answer. This is needed for
general backwards compatibility to allow migration in situations such as moving
from SDP to SDPng or moving from non end-to-end encrypted SDP to encrypted
SDP.
around using multipart with the SIP offer/answer framework. It specifies a way
to make an offer with a multipart/alternative MIME body and for the answer to
indicate which of the parts was selected for the answer. This is needed for
general backwards compatibility to allow migration in situations such as moving
from SDP to SDPng or moving from non end-to-end encrypted SDP to encrypted
SDP.