About: http://webisa.webdatacommons.org/367875552

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	The present invention is a telephone system and method whereby telephones can essentially learn the required prefix codes used in a private system to reach a public telephone exchange.
http://www.w3.org/ns/prov#wasQuotedFrom	patents.com