About: http://webisa.webdatacommons.org/206884562

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	During natural disasters such as earthquakes and hurricanes, call volume in the public switched network (PSN) often increases to levels that cause trunk overloads in switches.
http://www.w3.org/ns/prov#wasQuotedFrom	ieee.org