]> Tekelec

17210 Campbell Rd. Suite 250 Dallas TX 75252 US adam@nostrum.com

Cisco

170 West Tasman Drive MS: SJC-21/2 San Jose CA 95134 USA +1 408 902 3341 fluffy@cisco.com

CounterPath Solutions, Inc.

Suite 300, One Bentall Centre, 505 Burrard Street Vancouver BC V7X 1M3 Canada +1 604 320-3340 jason@counterpath.com

Real Time Applications and Infrastructure SIMPLE WG This document defines the mechanisms by which the Session Initiation Protocol (SIP) can be used to establish Extensible Messaging and Presence Protocol (XMPP) messaging sessions for the exchange of session-mode instant messaging and file transfer.

&draft-ietf-sip-uri-list-subscribe; &rfc3261; &rfc3920; &rfc3921; &rfc3923;