@misc{rfc4662, series = {Request for Comments}, number = 4662, howpublished = {RFC 4662}, publisher = {RFC Editor}, doi = {10.17487/RFC4662}, url = {https://www.rfc-editor.org/info/rfc4662}, author = {Adam Roach and Jonathan Rosenberg and Ben Campbell}, title = {{A Session Initiation Protocol (SIP) Event Notification Extension for Resource Lists}}, pagetotal = 39, year = 2006, month = aug, abstract = {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 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. {[}STANDARDS-TRACK{]}}, }