About: http://webisa.webdatacommons.org/451359141

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	In step 320, represented by the client application, the proxy server completes an inquiry to determine whether the calling party is a valid user of the calling services at the proxy server.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com