SIMPLE WG M. Lonnfors Internet-Draft K. Kiss Intended status: Standards Track Nokia Expires: March 7, 2008 September 4, 2007 Session Initiation Protocol (SIP) User Agent Capability Extension to Presence Information Data Format (PIDF) draft-ietf-simple-prescaps-ext-08 Status of this Memo By submitting this Internet-Draft, each author represents that any applicable patent or other IPR claims of which he or she is aware have been or will be disclosed, and any of which he or she becomes aware will be disclosed, in accordance with Section 6 of BCP 79. Internet-Drafts are working documents of the Internet Engineering Task Force (IETF), its areas, and its working groups. Note that other groups may also distribute working documents as Internet- Drafts. Internet-Drafts are draft documents valid for a maximum of six months and may be updated, replaced, or obsoleted by other documents at any time. It is inappropriate to use Internet-Drafts as reference material or to cite them other than as "work in progress." The list of current Internet-Drafts can be accessed at http://www.ietf.org/ietf/1id-abstracts.txt. The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. This Internet-Draft will expire on March 7, 2008. Copyright Notice Copyright (C) The IETF Trust (2007). Abstract Presence Information Data Format (PIDF) defines a common presence data format for Common Profile for Presence (CPP) compliant Presence protocols. This memo defines an extension to represent SIP User Agent capabilities in the Presence Information Document Format (PIDF) compliant presence documents. Lonnfors & Kiss Expires March 7, 2008 [Page 1] Internet-Draft User Agent Capability Presence Status September 2007 Table of Contents 1. Introduction . . . . . . . . . . . . . . . . . . . . . . . . . 4 1.1. Motivation . . . . . . . . . . . . . . . . . . . . . . . . 4 1.2. Scope . . . . . . . . . . . . . . . . . . . . . . . . . . 5 2. Conventions . . . . . . . . . . . . . . . . . . . . . . . . . 5 3. Extension for "Indicating User Agent Capabilities in the Session Initiation Protocol (SIP)" in PIDF documents . . . . . 5 3.1. Overview of operation . . . . . . . . . . . . . . . . . . 5 3.2. Service capabilities . . . . . . . . . . . . . . . . . . . 6 3.2.1. element . . . . . . . . . . . . . . . . . . 6 3.2.2.