curl --request GET \
  --url https://api.openphone.com/v1/calls/{callId} \
  --header 'Authorization: <api-key>'

{
  "data": {
    "answeredAt": "2022-01-01T00:00:00Z",
    "answeredBy": "USlHhXmRMz",
    "initiatedBy": "USlHhXmRMz",
    "direction": "incoming",
    "status": "completed",
    "completedAt": "2022-01-01T00:00:00Z",
    "createdAt": "2022-01-01T00:00:00Z",
    "duration": 60,
    "forwardedFrom": "+15555555555",
    "forwardedTo": "+15555555555",
    "id": "AC123abc",
    "phoneNumberId": "PN123abc",
    "participants": [
      "+15555555555"
    ],
    "updatedAt": "2022-01-01T00:00:00Z",
    "userId": "US123abc"
  }
}