URI: The URI for this namespace is
urn:ietf:params:xml:ns:pidf:data-model.
Registrant Contact: IETF, SIMPLE working group, (simple&ietf.org),
Jonathan Rosenberg (jdrosen&jdrosen.net).
XML:
BEGIN
Presence Data Model Namespace
Namespace for Presence Data Model
urn:ietf:params:xml:ns:pidf:data-model
See RFC4479.
END