PropertyValue
http://www.w3.org/1999/02/22-rdf-syntax-ns#type
http://www.w3.org/ns/prov#value
  • The telephony protocol stack resident in server side telephony application process 111 can be implemented using the SIP protocol which is an IETF standard protocol for IP communication, for enabling IP telephony gateways, client endpoints, private branch exchanges, and other communication systems or devices to communicate with each other.
http://www.w3.org/ns/prov#wasQuotedFrom
  • google.com