SIP Event Packages for Call Leg and Conference State

Document Type Expired Internet-Draft (individual)
Authors Jonathan Rosenberg  , Henning Schulzrinne 
Last updated 2002-03-07
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Expired & archived
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This Internet-Draft is no longer active. A copy of the expired Internet-Draft can be found at


This document defines two new event packages for the SIP Events architecture, along with two new data formats used in notifications for those packages. The first is a call-leg package, and the second is a conference package. The call-leg package allows users to subscribe to another user, an receive notifications about the changes in state of call legs that the user is involved in.


Jonathan Rosenberg (
Henning Schulzrinne (

(Note: The e-mail addresses provided for the authors of this Internet-Draft may no longer be valid.)