<http://webisa.webdatacommons.org/prov/120403927>	<http://www.w3.org/ns/prov#wasDerivedFrom>	<http://webisa.webdatacommons.org/170671399> .
<http://webisa.webdatacommons.org/170671399>	<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>	<http://www.w3.org/ns/prov#Entity> .
<http://webisa.webdatacommons.org/170671399>	<http://www.w3.org/ns/prov#value>	"The present invention relates in general to voice and data communications systems, and is more particularly directed to systems for providing integrated voice and data access to a T1 carrier data line terminating at the customer premises." .
<http://webisa.webdatacommons.org/170671399>	<http://www.w3.org/ns/prov#wasQuotedFrom>	<google.com> .