Twilio - IBM Speech to text - 如何从有效负载中获取呼叫 sid？

Question

我已经安装了 IBM 插件并设置了一个回调 URL 来接收响应。根据文档从插件收到的示例响应是。

{
  "status":"successful",
  "message":null,
  "code":null,
  "results":{
    "ibm_watson_speechtotext":{
      "request_sid":"XRc82d4197bbc51d5982588ae367365a51",
      "status":"successful",
      "message":null,
      "code":null,
      "payload":[
        {
        "content_type":"application/json",
        "url":"https://api.twilio.com/2010-04-01/Accounts/AC597d02bf69de79f8f411f289ac211a0d/Recordings/REab85c1c2860471abf040b545c4e5aa40/AddOnResults/XRc82d4197bbc51d5982588ae367365a51/Payloads/XH364bd4514b1377fd8844cd9793416131/Data"
        }
      ],
      "links":{
        "add_on_result":"https://api.twilio.com/2010-04-01/Accounts/AC597d02bf69de79f8f411f289ac211a0d/Recordings/REab85c1c2860471abf040b545c4e5aa40/AddOnResults/XRc82d4197bbc51d5982588ae367365a51",
        "payloads":"https://api.twilio.com/2010-04-01/Accounts/AC597d02bf69de79f8f411f289ac211a0d/Recordings/REab85c1c2860471abf040b545c4e5aa40/AddOnResults/XRc82d4197bbc51d5982588ae367365a51/Payloads",
        "recording":"https://api.twilio.com/2010-04-01/Accounts/AC597d02bf69de79f8f411f289ac211a0d/Recordings/REab85c1c2860471abf040b545c4e5aa40"
      }
    }
  }
}

如何获取与此响应相关的通话详情（callsid），以便我可以将转录内容与通话详情一起存储？

文档对此不清楚。