const options = {method: 'GET'};

fetch('https://blackbox.dasha.ai/api/v1/calls/{callId}/sip-traces', options)
  .then(res => res.json())
  .then(res => console.log(res))
  .catch(err => console.error(err));

[
  {
    "callId": "<string>",
    "direction": "<string>",
    "messages": [
      {
        "timestamp": "<string>",
        "method": "<string>",
        "statusCode": 123,
        "sourceIp": "<string>",
        "sourcePort": 123,
        "destIp": "<string>",
        "destPort": 123,
        "protocol": "<string>",
        "rawMessage": "<string>"
      }
    ]
  }
]