PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • PABXs and other specialized telephony systems such as call centers, telephony help desks, or Automatic Call Distribution Systems do posses the possibility of getting the status of their extensions, but while this information may be available to users connected to such systems by various known methods, it is not available to seeking users of the general public who are not subscribers or extensions
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com