About: http://webisa.webdatacommons.org/426917286

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	In addition to telephony devices 8 a???8 n, advanced telephone systems, such as call centers 16 a???16 n, may be communicatively connected to PSTN 10 via wireline, wireless, ISDN and other communication links.
http://www.w3.org/ns/prov#wasQuotedFrom	google.ca