About: http://webisa.webdatacommons.org/51454731

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 various features of the telephony system can be practiced, including such features as conference calls, whisper calls, private sub-conference calls, dropping, adding, muting, transferring, forwarding, answering, and holding.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com