A Session Initiation Protocol (SIP) Event Notification Extension for Resource Lists

This document presents an extension to the Session Initiation Protocol (SIP)-Specific Event Notification mechanism for subscribing to a homogeneous list of resources. Instead of the subscriber sending a SUBSCRIBE for each resource individually, the subscriber can subscribe to an entire list, and then receive notifications when the state of any of the resources in the list changes. Roach, et al. Expires December 12, 2003 [Page 1] Internet-Draft SIP Event Lists June 2003 Table of