About: http://webisa.webdatacommons.org/24748717

Property	Value
http://www.w3.org/1999/02/22-rdf-syntax-ns#type	http://www.w3.org/ns/prov#Entity
http://www.w3.org/ns/prov#value	Voice over PSTN can be considered ???Private???, whereas data services, including VoIP, may require further security functions, such as encryption, to achieve the same result.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com