About: http://webisa.webdatacommons.org/115416254

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	DTMF signaling has many applications such as telephone dialing, data entry, credit checking, and voice mail system control.
http://www.w3.org/ns/prov#wasQuotedFrom	google.com