| Name | Type | Description | Notes |
|---|---|---|---|
| audioUrl | String | The URL of a file to be played back at the beginning of each prompt. The URL can point to either a WAV or MP3 file. | |
| invalidAudioUrl | String | The URL of a file to play when digits don't match the `valid_digits` parameter or the number of digits is not between `min` and `max`. The URL can point to either a WAV or MP3 file. | [optional] |
| minimumDigits | Integer | The minimum number of digits to fetch. This parameter has a minimum value of 1. | [optional] |
| maximumDigits | Integer | The maximum number of digits to fetch. This parameter has a maximum value of 128. | [optional] |
| maximumTries | Integer | The maximum number of times the file should be played if there is no input from the user on the call. | [optional] |
| timeoutMillis | Integer | The number of milliseconds to wait for a DTMF response after file playback ends before a replaying the sound file. | [optional] |
| terminatingDigit | String | The digit used to terminate input if fewer than `maximum_digits` digits have been gathered. | [optional] |
| validDigits | String | A list of all digits accepted as valid. | [optional] |
| interDigitTimeoutMillis | Integer | The number of milliseconds to wait for input between digits. | [optional] |
| clientState | String | Use this field to add state to every subsequent webhook. It must be a valid Base-64 encoded string. | [optional] |
| commandId | String | Use this field to avoid duplicate commands. Telnyx will ignore commands with the same `command_id`. | [optional] |