DTMF - Cognigy Documentation
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The dtmf verb generates a string of DTMF digit signals, which are transmitted as RTP payloads according to RFC 2833.
{
"verb": "dtmf",
"dtmf": "0276",
"duration": 250
}
Configuration
The following table lists the available parameters:
| Parameter | Type | Description | Required |
|---|---|---|---|
| dtmf | string | A string containing a sequence of DTMF digits (0-9, *, #). |
Yes |
| duration | number | The length of each digit in milliseconds. The default value is 500. |
No |
More Information
Last modified on June 10, 2026