security considerations extensibility pidf media types xml communication address content-type standards track presence information internationalization

pidf standards security location-information usage-rules location xml privacy geopriv metadata

communication presence data pidf rpid protocols xml interoperability standards track presence information

security considerations pidf standards xml timed-status presence information presence iana considerations

sip pidf security authorization configuration xcap xml interoperability standards track presence

networking user agent sip extensions capabilities pidf media types standards track presence information

communication pidf xml congestion control interoperability standards track mime type presence iana considerations metadata

client-server security considerations sip pidf partial notifications standards track data format mime type presence

networking sip pidf standards security protocols partial publication xml event state publication presence