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The Collect Digits node prompts the caller and captures DTMF key presses. It supports input validation, retries, and configurable TTS for prompts.

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Behavior

  • Plays a prompt message (via TTS or pre-recorded audio)
  • Listens for DTMF key presses until the terminate key is pressed, max digits are reached, or timeout occurs
  • Validates input against an optional regex pattern
  • Retries on invalid input up to the configured retry count
  • Stores collected digits and count in output variables

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Configuration

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Input settings

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Validation

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Prompt

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TTS settings

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Output handles

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Output variables

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Use cases

Prompt for a 10-digit account number with validationPattern: "^\d{10}$". On success, pass {{digits}} to a Database node.
Set maxDigits: 4, terminateKey: "#", and validationPattern: "^\d{4}$" to collect a 4-digit PIN.
Set minDigits: 10, maxDigits: 15 to collect an international phone number. Use the digits output variable in an SMS node to send a confirmation.