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This draft is a work item of the Session Initiation Proposal Investigation Working Group of the IETF.
Title : Multiple Dialog Usages in the Session Initiation Protocol
Author(s) : R. Sparks
Filename : draft-ietf-sipping-dialogusage-06.txt
Pages : 29
Date : 2007-2-20
Several methods in the Session Initiation Protocol can create an
association between endpoints known as a dialog. Some of these
methods can also create a different, but related, association within
an existing dialog. These multiple associations, or dialog usages,
require carefully coordinated processing as they have independent
life-cycles, but share common dialog state. Processing multiple
dialog usages correctly is not completely understood. What is
understood is difficult to implement.
This memo argues that multiple dialog usages should be avoided. It
discusses alternatives to their use and clarifies essential behavior
for elements that cannot currently avoid them.
This is an informative document and makes no normative statements of
any kind.
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