%% You should probably cite draft-ietf-simple-event-list instead of this I-D. @techreport{ietf-simple-presencelist-package-00, number = {draft-ietf-simple-presencelist-package-00}, type = {Internet-Draft}, institution = {Internet Engineering Task Force}, publisher = {Internet Engineering Task Force}, note = {Work in Progress}, url = {https://datatracker.ietf.org/doc/draft-ietf-simple-presencelist-package/00/}, author = {Ben Campbell and Jonathan Rosenberg}, title = {{A SIP Event Package for List Presence}}, pagetotal = 17, year = 2002, month = jun, day = 28, abstract = {This document presents a SIP event package for subscribing to a list of presentities. Instead of the subscriber sending a SUBSCRIBE to each presentity individually, the subscriber can subscribe to their presence list as a whole, and then receive notifications when the state of any of the presentities on the list changes.}, }