| Summary: |
The SIP working group has been grappling with a variety of very
difficult problems lately. These include early media, coupling of
resource reservation and call signaling, and the so-called
Heterogeneous Error Response Forking Problem (HERFP). Additional
problems being considered include supporting capability negotiation
for indicating support any one of one-of-N codecs, upgrading the
security on RTP streams, and demultiplexing media from a forked
INVITE. In this document, we present a unified view of all of these
problems, and present a unified solution that solves all of them in
the same way.
|