About: http://webisa.webdatacommons.org/273970829

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	respectively denote an ISDN call establishment message, an ISDN call establishment response message, an ISDN call clear message, and an ISDN call clear response message, and a message other than call control messages.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com