About: http://webisa.webdatacommons.org/80471417

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	It will give an overview of the types of applications that can be build using messaging as well as software-based Voice over IP (VoIP) and will explain which APIs and SDKs are available to build those applications.
http://www.w3.org/ns/prov#wasQuotedFrom	msdn.com