The power of DTMF masking in agent assisted payment transactions is that the sensitive cardholder data is not seen, heard, nor recorded; protecting cardholder data and assisting with PCI DSS compliance initiatives.

The introduction of DTMF masking should be considered best practice, albeit not an “official” PCI DSS requirement. 

This unique solution can remove PII near the VOIP ingress point of a contact center environment without disrupting the telephony voice path. 

One area of securing customer data that is often overlooked is when customers are asked to verbally provide their sensitive data over the phone in live agent interactions.