The SendDigits command plays DTMF tones on a live Call. This is useful for navigating through IVR menus or dialing extensions.

Nesting Rules

You cannot nest any actions within the SendDigits command and the SendDigits command cannot be nested in any other command. However, it is possible to specify sendDigits as an attribute of the dial command when it applies to a phone number (see OutDial ).


Code for the above example scenario is shown below.

      "SendDigits" : {
         "digits" : "12{2}34{4}#"

Command Attributes

SendDigits supports the following attributes that modify its behavior:

digitsString containing the digits to be played.
pauseMsPause between digits in milliseconds.
privacyModeIndicates if the request contains sensitive information which should be hidden.



Type: string
Default: null

String containing the digits to be played. The string cannot be empty and can include any digit, plus #, or *, and allows embedding specification for delay or pause between the output of individual digits. The default pause is 500 milliseconds. So, a string such as 1234# will play in 2 seconds (because of 4 standard pauses implied within the string).



Type: integer between 100-1000
Default: 500 (ms)

Pause between digits in milliseconds. Valid values are 100-1000 milliseconds and will be adjusted by FreeClimb to satisfy the constraint. Once this duration is specified, a custom pause is specified as a positive integer {n} within the digits string. This evaluates a pause equaling n units of the default or the overridden pause time. A digits string such as “12{2}34{4}#” will be rendered as follows:

  • Play digit 1, wait 0.5 seconds
  • Play digit 2, wait 1 second
  • Play digit 3, wait 0.5 seconds
  • Play digit 4, wait 2 seconds
  • Play digit #

Custom pause times cannot exceed 3000 ms.



Type: boolean
Default: false

Indicates if the request contains sensitive information which should be hidden. When set to true, the contents of the digits attribute will be replaced with the string "xxxxx" in the logs. It's important to note that privacyMode is set at the command level, meaning it will not be inherited by any nested commands.