<http://webisa.webdatacommons.org/13275240> <http://www.w3.org/ns/prov#wasQuotedFrom> <patents.com> . <http://webisa.webdatacommons.org/prov/503004303> <http://www.w3.org/ns/prov#wasDerivedFrom> <http://webisa.webdatacommons.org/13275240> . <http://webisa.webdatacommons.org/13275240> <http://www.w3.org/1999/02/22-rdf-syntax-ns#type> <http://www.w3.org/ns/prov#Entity> . <http://webisa.webdatacommons.org/13275240> <http://www.w3.org/ns/prov#value> "A services node also is used in routing and setting up communications such as conference calls as is described in more detail below." .