DTMF Support for Voice AI Testing

We're excited to announce that Hamming AI now supports DTMF (Dual-Tone Multi-Frequency) testing, enabling comprehensive automated testing for voice agents that accept keypad inputs.

This feature eliminates the need for manual testing of DTMF-enabled systems and allows you to simulate real-world user interactions through keypad inputs.

What's New

• Complete numeric keypad simulation (0-9, *, #)
• Multi-digit sequence testing
• Combined voice and DTMF interaction testing
• Automated timing validation
• IVR menu navigation testing

Why It Matters

DTMF testing is crucial for voice AI systems that handle customer service, automated phone systems, and interactive voice response (IVR) applications. With automated DTMF testing, you can:

• Ensure Reliability: Validate proper handling of keypad inputs across all scenarios
• Save Time: Eliminate manual testing and reduce QA effort
• Improve Coverage: Test complex interaction patterns systematically
• Maintain Quality: Ensure consistent handling of DTMF inputs

This comprehensive approach enables teams to build more reliable voice AI systems while significantly reducing testing overhead.

How to Use

To start using DTMF testing:

1. Access your Hamming AI dashboard
2. Configure DTMF test scenarios
3. Define input sequences
4. Run automated tests

Use Cases

Menu Navigation Testing

• Validate numeric menu selections
• Test option response accuracy
• Verify navigation paths
• Ensure proper error handling

Data Entry Validation

• Test phone number inputs
• Validate PIN code entry
• Verify account number processing
• Test form completion flows

Mixed Interaction Testing

• Combine voice and DTMF inputs
• Test complex workflows
• Validate multi-step processes
• Test fallback scenarios

Looking Forward

This DTMF support feature represents our commitment to comprehensive voice AI testing. Special thanks to Marius Buleandra for implementing this feature and to Dietmar Meister for the inspiration behind it.

Contact our team to learn more about how DTMF testing can enhance your voice AI development process.