About: http://webisa.webdatacommons.org/200498383

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	The invention relates to telecommunications networks and in particular to such networks incorporating a private branch exchange (PBX).
http://www.w3.org/ns/prov#wasQuotedFrom	google.com