About: http://webisa.webdatacommons.org/381772156

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	SIP is a signalling protocol that enables communication over IP networks.
http://www.w3.org/ns/prov#wasQuotedFrom	techworld.com