The Advertisement/Proposal Model of Session Description
draft-peterson-sipcore-advprop-01
Document | Type |
Expired Internet-Draft
(individual)
Expired & archived
|
|
---|---|---|---|
Authors | Jon Peterson , Cullen Fluffy Jennings | ||
Last updated | 2011-03-14 | ||
RFC stream | (None) | ||
Intended RFC status | (None) | ||
Formats | |||
Stream | Stream state | (No stream defined) | |
Consensus boilerplate | Unknown | ||
RFC Editor Note | (None) | ||
IESG | IESG state | Expired | |
Telechat date | (None) | ||
Responsible AD | (None) | ||
Send notices to | (None) |
This Internet-Draft is no longer active. A copy of the expired Internet-Draft is available in these formats:
Abstract
In common SIP practice, a two-phase "offer/answer" exchange of session description documents negotiates preferences, capabilities and requested sessions. However, the structure of the session description greatly confuses the disambiguation of these elements and thus the clear characterization of sessions. The current work proposes an alternative to the offer/answer model which leverages pre-association between user agents to recast those two phases into a less ambiguous form: an Advertisement of capabilities and preferences which occurs in non-real-time before a session is ever requested, which is followed during session establishment by a unidirectional and complete Proposal of a session.
Authors
Jon Peterson
Cullen Fluffy Jennings
(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)