dtmf verb generates a string of DTMF digit signals, which are transmitted as RTP payloads according to RFC 2833.
Configuration
The full set of configuration parameters:| Parameter | Description | Required |
|---|---|---|
| dtmf | A string containing a sequence of DTMF digits (0-9, *, #). | Yes |
| duration | The length of each digit in milliseconds. The default value is 500. | No |