When a call is initiated, each destination will have a unique identifier called message_id. This is returned in the response when the Voice API is called. By supplying such message_id in this endpoint, the latest and all relevant information regarding that call is supplied.
Although this is a GET request and doesn’t require a body, the mentioned authentication headers discussed in the 3 section are still required. The information can be retrieved by passing the message_id in the following URL, as per below: