About: http://webisa.webdatacommons.org/356547412

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	Because outside telephone companies do not support carrying signaling for the PBX system over their networks, a dedicated circuit, such as a T1 or E1 line is used in the PBX system.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com