This demonstration shows how Paytia's DTMF suppression technology works during a live telephone payment. When a customer enters their card number using the phone keypad, the DTMF tones are masked in real-time so the agent cannot hear or identify individual digits. The agent sees payment progress on screen while the actual card data remains invisible.
Key features demonstrated
Real-time DTMF tone masking and suppression
Agent hears flat tones instead of individual digits
Card data captured securely without agent exposure
Payment progress visible on agent screen
Call recording remains active throughout
Fully PCI DSS Level 1 compliant
Overview
DTMF Suppression is a critical security technology that masks dual-tone multi-frequency (DTMF) keypad tones during phone payment processing, ensuring PCI DSS compliance while maintaining excellent customer service. This advanced audio processing solution prevents agents from hearing sensitive card data while enabling them to guide customers through secure payment processes, reducing compliance scope by up to 80% and eliminating the need for complex security infrastructure.
Key benefits
Achieve PCI DSS Level 1 compliance for phone payment processing without infrastructure changes
Eliminate agent exposure to sensitive cardholder data through advanced audio masking
Move from SAQ D (329 requirements) to SAQ A (22 requirements) through data isolation
Maintain natural customer service interactions while ensuring complete security
Connects to existing contact centre platforms and telephony systems
Eliminate card data breaches and associated regulatory penalties
Enable real-time fraud detection and transaction monitoring
Support multiple payment methods including credit cards, debit cards, and ACH
Common use cases
Enterprise contact centres processing high-volume phone payments for utilities and telecommunications
Insurance companies processing policy payments and claims through phone channels
Healthcare organisations managing patient payment plans and medical billing compliance
Collections agencies requiring PCI compliant payment processing for debt recovery
Government agencies processing citizen payments while maintaining data security standards
E-commerce customer service teams handling phone orders and payment disputes
SaaS companies processing subscription renewals and upgrades via phone support
Technical integration
DTMF Suppression processes the call audio in real time, detects the keypad tones as they're sent, and masks them before they reach the agent or your recording system. It works with most contact centre platforms — Avaya, Cisco Webex, Genesys Cloud, Amazon Connect and Five9 are the common ones — via standard APIs and webhooks. Card data is tokenised on capture and encrypted in transit and at rest using AES-256. The platform is PCI DSS Level 1 certified.
Implementation process
How long deployment takes depends on your telephony setup. A standard SIP trunk integration is usually a few days' work; more involved rollouts with custom CRM hooks, agent training, or multi-site testing take longer. We scope the timeline with you up front rather than pretending every deployment fits the same template.
Frequently asked questions
What is DTMF suppression in phone payment processing?+
DTMF suppression is a security technology that masks dual-tone multi-frequency (DTMF) keypad tones during phone payment processing, preventing agents from hearing sensitive card data while maintaining natural customer service interactions. This ensures PCI DSS compliance by eliminating agent exposure to cardholder data.
How does DTMF suppression ensure PCI compliance?+
DTMF suppression ensures PCI compliance by preventing agents from hearing or processing sensitive cardholder data during phone transactions. By masking keypad tones in real-time, the technology eliminates agent exposure to card data, typically moving you from SAQ D (329 requirements) to SAQ A (22 requirements) and enabling Level 1 PCI DSS compliance.
Can agents still help customers with payments using DTMF suppression?+
Yes, agents can fully assist customers with payment processes while DTMF suppression is active. The technology only masks the audio tones of keypad entries, allowing agents to guide customers through payment steps, answer questions, and provide support without compromising security.
What contact centre platforms support DTMF suppression?+
DTMF suppression works with the main contact centre platforms — Avaya, Cisco Webex, Genesys Cloud, Amazon Connect, Five9 and Microsoft Teams — via standard APIs and webhooks.
How much does DTMF suppression cost compared to traditional PCI compliance?+
Traditional PCI compliance for contact centres is expensive because SAQ D covers 329 requirements across network segmentation, vulnerability scanning, secure rooms, access controls, and ongoing evidence work. DTMF suppression moves most of that out of scope by keeping card data entirely out of your environment, so you qualify for SAQ A (22 requirements) instead.