Personally identifiable information (PII) is needed when a caller personally needs to give credit card or Social Security number. In these scenarios IVR technology can’t be used. So, a new technology is emerging that uses dual tone multi-frequency signaling (DTMF) to capture PII securely while remaining on the same call , eliminating the risk of exposing data to the agent, the organization or the call recording system and improves call center efficiency and security, and in turn reduce costs and improves customer trust, satisfaction and loyalty. Read more at: http://telecomreseller.com/2015/02/09/new-dtmf-capture-technology-will-revolutionize-call-center-security/