The API endpoint allows you to whisper to an active call. The request should include the following parameters in x-www-form-urlencoded format:

• extension (Required): Please enter the extension number of the listening manager.
  
• format: The format of the response.
  
• channel: Please enter the channel of the active call you want to whisper to.
  
• cdrId: Please enter the “cdrid” for the active call you want to whisper to.
  
• uniqueId: Please enter the “uniqueid” for the active call you want to whisper to.
  

The response to this request will include:

• success: Indicates the success status of the whisper action.
  
• message: Provides additional information or error message related to the whisper action.